Major refactoring effort underway.
This commit is contained in:
parent
5ec7d4462e
commit
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||||||
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# Generated from CLion C/C++ Code Style settings
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||||||
|
BasedOnStyle: LLVM
|
||||||
|
AccessModifierOffset: -8
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|
AlignAfterOpenBracket: Align
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AlignConsecutiveAssignments: Consecutive
|
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|
AlignOperands: Align
|
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|
AllowAllArgumentsOnNextLine: false
|
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AllowAllConstructorInitializersOnNextLine: false
|
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AllowAllParametersOfDeclarationOnNextLine: false
|
||||||
|
AllowShortBlocksOnASingleLine: Always
|
||||||
|
AllowShortCaseLabelsOnASingleLine: false
|
||||||
|
AllowShortFunctionsOnASingleLine: All
|
||||||
|
AllowShortIfStatementsOnASingleLine: Always
|
||||||
|
AllowShortLambdasOnASingleLine: All
|
||||||
|
AllowShortLoopsOnASingleLine: true
|
||||||
|
AlwaysBreakAfterReturnType: TopLevel
|
||||||
|
AlwaysBreakTemplateDeclarations: Yes
|
||||||
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BreakBeforeBraces: Custom
|
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BraceWrapping:
|
||||||
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AfterCaseLabel: false
|
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AfterClass: false
|
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AfterControlStatement: Never
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AfterUnion: false
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BeforeCatch: false
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BeforeElse: false
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IndentBraces: false
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SplitEmptyFunction: false
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SplitEmptyRecord: true
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|
BreakBeforeBinaryOperators: None
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BreakBeforeTernaryOperators: true
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|
BreakConstructorInitializers: BeforeColon
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||||||
|
BreakInheritanceList: BeforeColon
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ColumnLimit: 0
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|
CompactNamespaces: false
|
||||||
|
ContinuationIndentWidth: 4
|
||||||
|
IndentCaseLabels: false
|
||||||
|
IndentPPDirectives: None
|
||||||
|
IndentWidth: 8
|
||||||
|
KeepEmptyLinesAtTheStartOfBlocks: true
|
||||||
|
MaxEmptyLinesToKeep: 2
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NamespaceIndentation: None
|
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ObjCSpaceAfterProperty: false
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|
ObjCSpaceBeforeProtocolList: true
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QualifierAlignment: Left
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PointerAlignment: Right
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ReflowComments: false
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SpaceAfterCStyleCast: true
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SpaceAfterLogicalNot: false
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|
SpaceAfterTemplateKeyword: false
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SpaceBeforeAssignmentOperators: true
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SpaceBeforeCpp11BracedList: false
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SpaceBeforeCtorInitializerColon: true
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SpaceBeforeInheritanceColon: true
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||||||
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SpaceBeforeParens: ControlStatements
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SpaceBeforeRangeBasedForLoopColon: false
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||||||
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SpaceInEmptyParentheses: false
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||||||
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SpacesBeforeTrailingComments: 0
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||||||
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SpacesInAngles: false
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||||||
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SpacesInCStyleCastParentheses: false
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||||||
|
SpacesInContainerLiterals: false
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||||||
|
SpacesInParentheses: false
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SpacesInSquareBrackets: false
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||||||
|
TabWidth: 8
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||||||
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UseTab: ForContinuationAndIndentation
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||||||
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@ -0,0 +1,34 @@
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||||||
|
Checks: >-
|
||||||
|
bugprone-*,
|
||||||
|
cppcoreguidelines-*,
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||||||
|
google-*,
|
||||||
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misc-*,
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||||||
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modernize-*,
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||||||
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performance-*,
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||||||
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readability-*,
|
||||||
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-bugprone-lambda-function-name,
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-bugprone-reserved-identifier,
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||||||
|
-cppcoreguidelines-avoid-goto,
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||||||
|
-cppcoreguidelines-avoid-magic-numbers,
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||||||
|
-cppcoreguidelines-avoid-non-const-global-variables,
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||||||
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-cppcoreguidelines-pro-bounds-array-to-pointer-decay,
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-cppcoreguidelines-pro-type-vararg,
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||||||
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-google-readability-braces-around-statements,
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||||||
|
-google-readability-function-size,
|
||||||
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-misc-no-recursion,
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||||||
|
-modernize-return-braced-init-list,
|
||||||
|
-modernize-use-nodiscard,
|
||||||
|
-modernize-use-trailing-return-type,
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||||||
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-performance-unnecessary-value-param,
|
||||||
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-readability-identifier-length,
|
||||||
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-readability-magic-numbers
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||||||
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|
||||||
|
CheckOptions:
|
||||||
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- key: readability-function-cognitive-complexity.Threshold
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||||||
|
value: 100
|
||||||
|
- key: readability-function-cognitive-complexity.IgnoreMacros
|
||||||
|
value: true
|
||||||
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# Set naming conventions for your style below (there are dozens of naming settings possible):
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||||||
|
# See https://clang.llvm.org/extra/clang-tidy/checks/readability/identifier-naming.html
|
||||||
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- key: readability-identifier-naming.ClassCase
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value: CamelCase
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@ -1,59 +1,7 @@
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*.o
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build
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*.lo
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cmake-build-*
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*.a
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*.la
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*.dirstamp
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*.pc
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*.log
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*.trs
|
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||||||
TAGS
|
TAGS
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||||||
tags
|
tags
|
||||||
core*
|
core*
|
||||||
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|
||||||
# autoconf output
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|
||||||
autom4te.cache
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||||||
*.in
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!/src/libemsha-1.pc.in
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config.*
|
|
||||||
compile
|
|
||||||
*.m4
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|
||||||
configure
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||||||
depcomp
|
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*.info
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mdate-sh
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stamp-*
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texinfo.tex
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version.texi
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install-sh
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missing
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||||||
Makefile
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.deps
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.libs
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libtool
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ltmain.sh
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|
||||||
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|
||||||
RELEASE_NOTES
|
|
||||||
debian/files
|
|
||||||
debian/libemsha-1.postinst.debhelper
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|
||||||
debian/libemsha-1.postrm.debhelper
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|
||||||
debian/libemsha-1.substvars
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|
||||||
debian/libemsha-1/
|
|
||||||
debian/libemsha-dev.substvars
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|
||||||
debian/libemsha-dev/
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|
||||||
debian/shlibs.local
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|
||||||
debian/source/
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debian/tmp/
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||||||
doc/source/header.dated.rst
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||||||
doc/source/header.rst
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||||||
src/cov-int/
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|
||||||
src/emsha_core_test
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|
||||||
src/emsha_hmac_test
|
|
||||||
src/emsha_mem_test
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|
||||||
src/emsha_sha256_test
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src/emsha_static_hmac_test
|
|
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src/emsha_static_mem_test
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src/emsha_static_sha_test
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||||||
src/libemsha.tgz
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||||||
doc/source/conf.py
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/test-driver
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||||||
do-release
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@ -0,0 +1,8 @@
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# Default ignored files
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/shelf/
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/workspace.xml
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# Editor-based HTTP Client requests
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|
/httpRequests/
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|
# Datasource local storage ignored files
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|
/dataSources/
|
||||||
|
/dataSources.local.xml
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@ -0,0 +1,29 @@
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|
<component name="ProjectCodeStyleConfiguration">
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||||||
|
<code_scheme name="Project" version="173">
|
||||||
|
<Objective-C>
|
||||||
|
<option name="FUNCTION_BRACE_PLACEMENT" value="2" />
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|
</Objective-C>
|
||||||
|
<files>
|
||||||
|
<extensions>
|
||||||
|
<pair source="cc" header="h" fileNamingConvention="PASCAL_CASE" />
|
||||||
|
<pair source="c" header="h" fileNamingConvention="NONE" />
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||||||
|
<pair source="cu" header="cuh" fileNamingConvention="NONE" />
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||||||
|
<pair source="ixx" header="" fileNamingConvention="NONE" />
|
||||||
|
<pair source="mxx" header="" fileNamingConvention="NONE" />
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|
<pair source="cppm" header="" fileNamingConvention="NONE" />
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<pair source="ccm" header="" fileNamingConvention="NONE" />
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|
<pair source="cxxm" header="" fileNamingConvention="NONE" />
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|
<pair source="c++m" header="" fileNamingConvention="NONE" />
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||||||
|
</extensions>
|
||||||
|
</files>
|
||||||
|
<codeStyleSettings language="ObjectiveC">
|
||||||
|
<option name="ALIGN_GROUP_FIELD_DECLARATIONS" value="true" />
|
||||||
|
<indentOptions>
|
||||||
|
<option name="INDENT_SIZE" value="8" />
|
||||||
|
<option name="CONTINUATION_INDENT_SIZE" value="4" />
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||||||
|
<option name="TAB_SIZE" value="8" />
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||||||
|
<option name="USE_TAB_CHARACTER" value="true" />
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||||||
|
</indentOptions>
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||||||
|
</codeStyleSettings>
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||||||
|
</code_scheme>
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||||||
|
</component>
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<component name="ProjectCodeStyleConfiguration">
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||||||
|
<state>
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||||||
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<option name="PREFERRED_PROJECT_CODE_STYLE" value="Project copy" />
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</state>
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|
</component>
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@ -0,0 +1,2 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<module classpath="CMake" type="CPP_MODULE" version="4" />
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|
<component name="InspectionProjectProfileManager">
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|
<profile version="1.0">
|
||||||
|
<option name="myName" value="Project Default" />
|
||||||
|
<inspection_tool class="ClangTidy" enabled="false" level="WARNING" enabled_by_default="false" />
|
||||||
|
<inspection_tool class="Misra" enabled="false" level="WARNING" enabled_by_default="false">
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||||||
|
<scope name="ProjectSources" level="WARNING" enabled="false" />
|
||||||
|
</inspection_tool>
|
||||||
|
</profile>
|
||||||
|
</component>
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||||||
|
|
@ -0,0 +1,4 @@
|
||||||
|
<?xml version="1.0" encoding="UTF-8"?>
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||||||
|
<project version="4">
|
||||||
|
<component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
|
||||||
|
</project>
|
||||||
|
|
@ -0,0 +1,8 @@
|
||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<project version="4">
|
||||||
|
<component name="ProjectModuleManager">
|
||||||
|
<modules>
|
||||||
|
<module fileurl="file://$PROJECT_DIR$/.idea/emsha.iml" filepath="$PROJECT_DIR$/.idea/emsha.iml" />
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||||||
|
</modules>
|
||||||
|
</component>
|
||||||
|
</project>
|
||||||
|
|
@ -0,0 +1,3 @@
|
||||||
|
<component name="DependencyValidationManager">
|
||||||
|
<scope name="ProjectSources" pattern="file[emsha]:emsha/*||file:hmac.cc||file:emsha.cc||file:sha256.cc" />
|
||||||
|
</component>
|
||||||
|
|
@ -0,0 +1,6 @@
|
||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<project version="4">
|
||||||
|
<component name="VcsDirectoryMappings">
|
||||||
|
<mapping directory="" vcs="Git" />
|
||||||
|
</component>
|
||||||
|
</project>
|
||||||
|
|
@ -0,0 +1,8 @@
|
||||||
|
*out
|
||||||
|
*logs
|
||||||
|
*actions
|
||||||
|
*notifications
|
||||||
|
*tools
|
||||||
|
plugins
|
||||||
|
user_trunk.yaml
|
||||||
|
user.yaml
|
||||||
|
|
@ -0,0 +1,39 @@
|
||||||
|
Checks: >-
|
||||||
|
bugprone-*,
|
||||||
|
cppcoreguidelines-*,
|
||||||
|
google-*,
|
||||||
|
misc-*,
|
||||||
|
modernize-*,
|
||||||
|
performance-*,
|
||||||
|
readability-*,
|
||||||
|
-bugprone-lambda-function-name,
|
||||||
|
-bugprone-reserved-identifier,
|
||||||
|
-cppcoreguidelines-avoid-goto,
|
||||||
|
-cppcoreguidelines-avoid-magic-numbers,
|
||||||
|
-cppcoreguidelines-avoid-non-const-global-variables,
|
||||||
|
-cppcoreguidelines-pro-bounds-array-to-pointer-decay,
|
||||||
|
-cppcoreguidelines-pro-type-vararg,
|
||||||
|
-google-readability-braces-around-statements,
|
||||||
|
-google-readability-function-size,
|
||||||
|
-misc-no-recursion,
|
||||||
|
-modernize-return-braced-init-list,
|
||||||
|
-modernize-use-nodiscard,
|
||||||
|
-modernize-use-trailing-return-type,
|
||||||
|
-performance-unnecessary-value-param,
|
||||||
|
-readability-magic-numbers,
|
||||||
|
|
||||||
|
CheckOptions:
|
||||||
|
- key: readability-function-cognitive-complexity.Threshold
|
||||||
|
value: 100
|
||||||
|
- key: readability-function-cognitive-complexity.IgnoreMacros
|
||||||
|
value: true
|
||||||
|
# Set naming conventions for your style below (there are dozens of naming settings possible):
|
||||||
|
# See https://clang.llvm.org/extra/clang-tidy/checks/readability/identifier-naming.html
|
||||||
|
# - key: readability-identifier-naming.ClassCase
|
||||||
|
# value: CamelCase
|
||||||
|
# - key: readability-identifier-naming.NamespaceCase
|
||||||
|
# value: lower_case
|
||||||
|
# - key: readability-identifier-naming.PrivateMemberSuffix
|
||||||
|
# value: _
|
||||||
|
# - key: readability-identifier-naming.StructCase
|
||||||
|
# value: CamelCase
|
||||||
|
|
@ -0,0 +1,2 @@
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|
[settings]
|
||||||
|
profile=black
|
||||||
|
|
@ -0,0 +1,10 @@
|
||||||
|
# Autoformatter friendly markdownlint config (all formatting rules disabled)
|
||||||
|
default: true
|
||||||
|
blank_lines: false
|
||||||
|
bullet: false
|
||||||
|
html: false
|
||||||
|
indentation: false
|
||||||
|
line_length: false
|
||||||
|
spaces: false
|
||||||
|
url: false
|
||||||
|
whitespace: false
|
||||||
|
|
@ -0,0 +1,7 @@
|
||||||
|
enable=all
|
||||||
|
source-path=SCRIPTDIR
|
||||||
|
disable=SC2154
|
||||||
|
|
||||||
|
# If you're having issues with shellcheck following source, disable the errors via:
|
||||||
|
# disable=SC1090
|
||||||
|
# disable=SC1091
|
||||||
|
|
@ -0,0 +1,10 @@
|
||||||
|
rules:
|
||||||
|
quoted-strings:
|
||||||
|
required: only-when-needed
|
||||||
|
extra-allowed: ["{|}"]
|
||||||
|
empty-values:
|
||||||
|
forbid-in-block-mappings: true
|
||||||
|
forbid-in-flow-mappings: true
|
||||||
|
key-duplicates: {}
|
||||||
|
octal-values:
|
||||||
|
forbid-implicit-octal: true
|
||||||
|
|
@ -0,0 +1,5 @@
|
||||||
|
# Generic, formatter-friendly config.
|
||||||
|
select = ["B", "D3", "E", "F"]
|
||||||
|
|
||||||
|
# Never enforce `E501` (line length violations). This should be handled by formatters.
|
||||||
|
ignore = ["E501"]
|
||||||
|
|
@ -0,0 +1,39 @@
|
||||||
|
# This file controls the behavior of Trunk: https://docs.trunk.io/cli
|
||||||
|
# To learn more about the format of this file, see https://docs.trunk.io/reference/trunk-yaml
|
||||||
|
version: 0.1
|
||||||
|
cli:
|
||||||
|
version: 1.17.0
|
||||||
|
plugins:
|
||||||
|
sources:
|
||||||
|
- id: trunk
|
||||||
|
ref: v1.2.6
|
||||||
|
uri: https://github.com/trunk-io/plugins
|
||||||
|
runtimes:
|
||||||
|
enabled:
|
||||||
|
- go@1.21.0
|
||||||
|
- node@18.12.1
|
||||||
|
- python@3.10.8
|
||||||
|
lint:
|
||||||
|
enabled:
|
||||||
|
- clang-tidy@16.0.3
|
||||||
|
- bandit@1.7.5
|
||||||
|
- black@23.9.1
|
||||||
|
- checkov@2.5.9
|
||||||
|
- git-diff-check
|
||||||
|
- isort@5.12.0
|
||||||
|
- markdownlint@0.37.0
|
||||||
|
- osv-scanner@1.4.1
|
||||||
|
- prettier@3.0.3
|
||||||
|
- ruff@0.0.292
|
||||||
|
- shellcheck@0.9.0
|
||||||
|
- shfmt@3.6.0
|
||||||
|
- trivy@0.46.0
|
||||||
|
- trufflehog@3.60.0
|
||||||
|
- yamllint@1.32.0
|
||||||
|
actions:
|
||||||
|
disabled:
|
||||||
|
- trunk-announce
|
||||||
|
- trunk-check-pre-push
|
||||||
|
- trunk-fmt-pre-commit
|
||||||
|
enabled:
|
||||||
|
- trunk-upgrade-available
|
||||||
|
|
@ -1,6 +1,11 @@
|
||||||
LIBEMSHA CHANGELOG
|
LIBEMSHA CHANGELOG
|
||||||
==================
|
==================
|
||||||
|
|
||||||
|
1.0.3 (2023-10-17):
|
||||||
|
|
||||||
|
Changed:
|
||||||
|
+ Switched from autotools to cmake.
|
||||||
|
|
||||||
1.0.2 (2015-01-28):
|
1.0.2 (2015-01-28):
|
||||||
|
|
||||||
Added:
|
Added:
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,71 @@
|
||||||
|
cmake_minimum_required(VERSION 3.22)
|
||||||
|
project(emsha
|
||||||
|
VERSION 1.0.3
|
||||||
|
LANGUAGES CXX
|
||||||
|
DESCRIPTION "A compact HMAC-SHA-256 C++11 library.")
|
||||||
|
set(CMAKE_CXX_STANDARD 11)
|
||||||
|
set(CMAKE_VERBOSE_MAKEFILES ON)
|
||||||
|
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
|
||||||
|
|
||||||
|
set(EMSHA_NO_HEXSTRING OFF CACHE BOOL
|
||||||
|
"Don't include support for hex strings.")
|
||||||
|
set(EMSHA_NO_HEXLUT OFF CACHE BOOL
|
||||||
|
"Don't use a LUT for hex strings (saves ~256B of memory).")
|
||||||
|
|
||||||
|
include(CTest)
|
||||||
|
enable_testing()
|
||||||
|
|
||||||
|
# compile options:
|
||||||
|
# -Wall Default to all errors.
|
||||||
|
# -Wextra And a few extra.
|
||||||
|
# -Werror And require them to be fixed to build.
|
||||||
|
# -Wno-unused-function This is a library. Not every function is used here.
|
||||||
|
# -Wno-unused-parameter Some functions have parameters defined for compatibility,
|
||||||
|
# and aren't used in the implementation.
|
||||||
|
add_compile_options(
|
||||||
|
"-static"
|
||||||
|
"-Wall"
|
||||||
|
"-Wextra"
|
||||||
|
"-Werror"
|
||||||
|
"-Wno-unused-function"
|
||||||
|
"-Wno-unused-parameter"
|
||||||
|
"-g"
|
||||||
|
"$<$<CONFIG:RELEASE>:-O2>"
|
||||||
|
)
|
||||||
|
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
|
||||||
|
add_compile_options("-stdlib=libc++")
|
||||||
|
else ()
|
||||||
|
# nothing special for gcc at the moment
|
||||||
|
endif ()
|
||||||
|
|
||||||
|
### Set up the build ###
|
||||||
|
set(HEADERS
|
||||||
|
emsha/emsha.h
|
||||||
|
emsha/sha256.h
|
||||||
|
emsha/hmac.h
|
||||||
|
emsha/internal.h)
|
||||||
|
set(SOURCES emsha.cc sha256.cc hmac.cc)
|
||||||
|
|
||||||
|
include_directories(SYSTEM .)
|
||||||
|
|
||||||
|
### Build products ###
|
||||||
|
|
||||||
|
add_library(${PROJECT_NAME} STATIC ${SOURCES} ${HEADERS})
|
||||||
|
|
||||||
|
### TESTS ###
|
||||||
|
|
||||||
|
set(TEST_SOURCES test_utils.cc)
|
||||||
|
macro(generate_test name)
|
||||||
|
add_executable(${name} ${name}.cc ${TEST_SOURCES} ${ARGN})
|
||||||
|
target_link_libraries(${name} ${PROJECT_NAME})
|
||||||
|
add_test(${name} ${name})
|
||||||
|
endmacro()
|
||||||
|
|
||||||
|
generate_test(test_${PROJECT_NAME} test_${PROJECT_NAME}.cc)
|
||||||
|
generate_test(test_hmac)
|
||||||
|
generate_test(test_mem)
|
||||||
|
generate_test(test_sha256)
|
||||||
|
|
||||||
|
include(cmake/docs.cmake)
|
||||||
|
include(cmake/install.cmake)
|
||||||
|
include(cmake/packaging.cmake)
|
||||||
28
Makefile.am
28
Makefile.am
|
|
@ -1,28 +0,0 @@
|
||||||
ACLOCAL_AMFLAGS = -I m4
|
|
||||||
SUBDIRS = src
|
|
||||||
|
|
||||||
TESTS = src/emsha_core_test \
|
|
||||||
src/emsha_sha256_test \
|
|
||||||
src/emsha_hmac_test
|
|
||||||
|
|
||||||
dist_data_DATA = LICENSE \
|
|
||||||
README.rst \
|
|
||||||
doc/libemsha.rst
|
|
||||||
dist_noinst_DATA = autobuild \
|
|
||||||
doc/source \
|
|
||||||
doc/Makefile
|
|
||||||
|
|
||||||
.PHONY: valgrind-check
|
|
||||||
valgrind-check:
|
|
||||||
cd src && make $@
|
|
||||||
|
|
||||||
.PHONY: cloc-report
|
|
||||||
cloc-report:
|
|
||||||
cd src && make $@
|
|
||||||
|
|
||||||
.PHONY: coverity-scan
|
|
||||||
coverity-scan:
|
|
||||||
cd src && make $@
|
|
||||||
|
|
||||||
epub:
|
|
||||||
cd doc && make $@
|
|
||||||
|
|
@ -1,7 +0,0 @@
|
||||||
#!/bin/sh
|
|
||||||
|
|
||||||
CXX=g++
|
|
||||||
command -v clang 2>&1 > /dev/null && CXX=clang++
|
|
||||||
[ -d m4 ] || mkdir m4
|
|
||||||
autoreconf -i && ./configure --enable-silent-rules CXX=$CXX \
|
|
||||||
&& make && make check
|
|
||||||
37
cleanroom
37
cleanroom
|
|
@ -1,37 +0,0 @@
|
||||||
#!/bin/sh
|
|
||||||
|
|
||||||
echo ' ____ _ _ _ ____ _____ ____ '
|
|
||||||
echo ' | _ \ / \ | \ | |/ ___| ____| _ \ '
|
|
||||||
echo ' | | | |/ _ \ | \| | | _| _| | |_) |'
|
|
||||||
echo ' | |_| / ___ \| |\ | |_| | |___| _ < '
|
|
||||||
echo ' |____/_/ \_\_| \_|\____|_____|_| \_\'
|
|
||||||
echo ''
|
|
||||||
|
|
||||||
echo "[!] This script will destroy anything not tracked by git."
|
|
||||||
echo "[!] Waiting 5 seconds before running. Press ^C to abort."
|
|
||||||
|
|
||||||
echo -n "5"
|
|
||||||
sleep 1
|
|
||||||
echo -n " 4"
|
|
||||||
sleep 1
|
|
||||||
echo -n " 3"
|
|
||||||
sleep 1
|
|
||||||
echo -n " 2"
|
|
||||||
sleep 1
|
|
||||||
echo -n " 1"
|
|
||||||
sleep 1
|
|
||||||
echo " nuking from orbit!"
|
|
||||||
sleep 1
|
|
||||||
|
|
||||||
echo ""
|
|
||||||
git clean -fxd
|
|
||||||
|
|
||||||
echo ""
|
|
||||||
echo "-------------------------------------------------------------"
|
|
||||||
echo "If you wish to make an apple pie from scratch, you must first"
|
|
||||||
echo "create the universe."
|
|
||||||
echo " -- Carl Fucking Sagan"
|
|
||||||
echo "-------------------------------------------------------------"
|
|
||||||
echo ""
|
|
||||||
./autobuild
|
|
||||||
|
|
||||||
|
|
@ -0,0 +1,41 @@
|
||||||
|
# Doxygen support for scsl.
|
||||||
|
|
||||||
|
add_custom_target(manpages)
|
||||||
|
|
||||||
|
macro(md2man source)
|
||||||
|
block()
|
||||||
|
set(SOURCE_MANPAGE)
|
||||||
|
set(SOURCE_SECTION)
|
||||||
|
string(REGEX REPLACE "^.+/([^/]+)\.md$" "\\1" SOURCE_MANPAGE ${source})
|
||||||
|
string(REGEX REPLACE "^.+/[^/]+\.([0-9])\.md$" "\\1" SOURCE_SECTION ${source})
|
||||||
|
file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/man/man${SOURCE_SECTION})
|
||||||
|
configure_file(${source} ${SOURCE_MANPAGE}.scdoc)
|
||||||
|
add_custom_command(TARGET manpages
|
||||||
|
COMMAND scdoc < ${SOURCE_MANPAGE}.scdoc > man/man${SOURCE_SECTION}/${SOURCE_MANPAGE})
|
||||||
|
endblock()
|
||||||
|
endmacro()
|
||||||
|
|
||||||
|
md2man(docs/emsha.3.md)
|
||||||
|
|
||||||
|
find_package(Doxygen)
|
||||||
|
if (${DOXYGEN_FOUND})
|
||||||
|
# prefer scdocs for manpages.
|
||||||
|
set(DOXYGEN_GENERATE_MAN NO)
|
||||||
|
set(DOXYGEN_GENERATE_LATEX YES)
|
||||||
|
set(DOXYGEN_EXTRACT_ALL YES)
|
||||||
|
set(DOXYGEN_USE_MDFILE_AS_MAINPAGE "${CMAKE_CURRENT_SOURCE_DIR}/docs/mainpage.md")
|
||||||
|
message(STATUS "Doxygen found, building docs.")
|
||||||
|
|
||||||
|
doxygen_add_docs(${PROJECT_NAME}_docs
|
||||||
|
${HEADER_FILES}
|
||||||
|
${SOURCE_FILES}
|
||||||
|
USE_STAMP_FILE)
|
||||||
|
add_dependencies(${PROJECT_NAME} ${PROJECT_NAME}_docs)
|
||||||
|
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/latex
|
||||||
|
DESTINATION share/doc/${PROJECT_NAME}/doxygen)
|
||||||
|
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/man
|
||||||
|
DESTINATION share)
|
||||||
|
add_dependencies(${PROJECT_NAME}_docs manpages)
|
||||||
|
endif ()
|
||||||
|
|
||||||
|
|
@ -0,0 +1,3 @@
|
||||||
|
set(EMSHA_INCLUDE_DIRS include/@PROJECT_NAME@)
|
||||||
|
set(EMSHA_LIBRARIES libemsha-@PROJECT_VERSION_MAJOR@.a)
|
||||||
|
|
||||||
|
|
@ -0,0 +1,27 @@
|
||||||
|
### Install ###
|
||||||
|
|
||||||
|
include(CMakePackageConfigHelpers)
|
||||||
|
|
||||||
|
### library packaging for CMake and pkgconfig to find built targets.
|
||||||
|
write_basic_package_version_file(
|
||||||
|
${PROJECT_NAME}Config.cmake
|
||||||
|
VERSION ${PACKAGE_VERSION}
|
||||||
|
COMPATIBILITY SameMajorVersion
|
||||||
|
)
|
||||||
|
write_basic_package_version_file(
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
|
||||||
|
VERSION ${PROJECT_VERSION}
|
||||||
|
COMPATIBILITY SameMajorVersion)
|
||||||
|
configure_file(${PROJECT_NAME}.pc.in ${PROJECT_NAME}.pc @ONLY)
|
||||||
|
|
||||||
|
### set up installation targets.
|
||||||
|
|
||||||
|
install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION lib)
|
||||||
|
install(FILES ${HEADERS} DESTINATION include/${PROJECT_NAME})
|
||||||
|
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc
|
||||||
|
DESTINATION lib/pkgconfig)
|
||||||
|
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
|
||||||
|
DESTINATION share/${PROJECT_CMAKE_CONFIG_NAME}/cmake)
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -0,0 +1,41 @@
|
||||||
|
### Packaging ###
|
||||||
|
|
||||||
|
include(InstallRequiredSystemLibraries)
|
||||||
|
|
||||||
|
set(CPACK_PACKAGE_VENDOR "K. Isom")
|
||||||
|
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY ${PROJECT_DESCRIPTION})
|
||||||
|
set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
|
||||||
|
set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
|
||||||
|
set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
|
||||||
|
|
||||||
|
set(CPACK_PACKAGE_FILE_NAME
|
||||||
|
${PROJECT_NAME}-${PROJECT_VERSION}-${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_ARCH}${CMAKE_HOST_SYSTEM_PROCESSOR})
|
||||||
|
|
||||||
|
# Debian settings
|
||||||
|
set(CPACK_DEBIAN_PACKAGE_MAINTAINER ${CPACK_PACKAGE_VENDOR})
|
||||||
|
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY ${CPACK_PACKAGE_DESCRIPTION})
|
||||||
|
set(CPACK_PACKAGE_DESCRIPTION ${CPACK_PACKAGE_DESCRIPTION})
|
||||||
|
set(CPACK_PACKAGE_DEPENDS)
|
||||||
|
set(CPACK_DEBIAN_PACKAGE_SECTION devel)
|
||||||
|
set(CPACK_DEBIAN_PACKAGE_GENERATE_SHLIBS ON)
|
||||||
|
set(CPACK_DEBIAN_FILE_NAME DEB-DEFAULT)
|
||||||
|
|
||||||
|
if(LINUX)
|
||||||
|
set(CPACK_GENERATOR "DEB;STGZ;TGZ")
|
||||||
|
elseif(APPLE)
|
||||||
|
set(CPACK_GENERATOR "productbuild")
|
||||||
|
elseif(MSVC OR MSYS OR MINGW)
|
||||||
|
set(CPACK_GENERATOR "NSIS;ZIP")
|
||||||
|
else()
|
||||||
|
set(CPACK_GENERATOR "ZIP")
|
||||||
|
endif()
|
||||||
|
|
||||||
|
set(CPACK_SOURCE_GENERATOR "TGZ;ZIP")
|
||||||
|
|
||||||
|
set(CPACK_SOURCE_IGNORE_FILES
|
||||||
|
/.git
|
||||||
|
/dist
|
||||||
|
/.*build.*)
|
||||||
|
|
||||||
|
include (CPack)
|
||||||
|
add_custom_target(package_docs DEPENDS emsha_docs package package_source)
|
||||||
62
configure.ac
62
configure.ac
|
|
@ -1,62 +0,0 @@
|
||||||
# autoconf version 2.68 and automake version 1.11 seem to be the latest
|
|
||||||
# versions that can be used with Travis right now.
|
|
||||||
AC_PREREQ([2.68])
|
|
||||||
AC_INIT([libemsha],
|
|
||||||
[1.0.2],
|
|
||||||
[coder@kyleisom.net],
|
|
||||||
[libemsha],
|
|
||||||
[https://kyleisom.net/projects/libemsha/])
|
|
||||||
AM_INIT_AUTOMAKE([1.11 foreign])
|
|
||||||
|
|
||||||
AC_CONFIG_SRCDIR([src/emsha/sha256.hh])
|
|
||||||
AC_CONFIG_FILES([Makefile src/Makefile doc/source/conf.py doc/source/header.rst src/libemsha-1.pc])
|
|
||||||
AC_CONFIG_FILES([do-release], [chmod +x do-release])
|
|
||||||
AC_CONFIG_MACRO_DIR([m4])
|
|
||||||
|
|
||||||
PKG_PROG_PKG_CONFIG
|
|
||||||
AC_CHECK_HEADERS
|
|
||||||
|
|
||||||
LT_INIT
|
|
||||||
AC_PROG_CXX
|
|
||||||
AC_PROG_INSTALL
|
|
||||||
AC_PROG_CC_C_O
|
|
||||||
|
|
||||||
AC_CHECK_PROGS([SPHINX], [sphinx-build])
|
|
||||||
if test -z "$SPHINX";
|
|
||||||
then
|
|
||||||
AC_MSG_WARN([Sphinx not found - continuing without Sphinx support])
|
|
||||||
fi
|
|
||||||
|
|
||||||
AC_ARG_ENABLE([hexstring],
|
|
||||||
AS_HELP_STRING([--disable-hexstring], [Don't build with support for hex string output (default enabled)]),
|
|
||||||
[:], [enable_hexstring=check])
|
|
||||||
|
|
||||||
AC_ARG_ENABLE([hexlut],
|
|
||||||
AS_HELP_STRING([--disable-hexlut], [Don't build with the larger LUT for building hex strings (saves ~1KB of memory). This has no effect if hex strings are disabled.]),
|
|
||||||
[:], [enable_hexlut=check])
|
|
||||||
|
|
||||||
AC_ARG_ENABLE([selftest],
|
|
||||||
AS_HELP_STRING([--disable-selftest], [Don't build with support for internal self-tests (saves some memory that is used by the test vectors.)]),
|
|
||||||
[:], [enable_selftest=check])
|
|
||||||
|
|
||||||
# The default for the ARG_ENABLE options is to have them enabled.
|
|
||||||
AS_IF([test "x$enable_hexstring" == "xno"], [
|
|
||||||
AC_MSG_NOTICE([disabling hexstrings.])
|
|
||||||
AC_DEFINE(EMSHA_NO_HEXSTRING)
|
|
||||||
])
|
|
||||||
|
|
||||||
AS_IF([test "x$enable_hexlut" == "xno"], [
|
|
||||||
AC_MSG_NOTICE([disabling the large hexstring LUT.])
|
|
||||||
AC_DEFINE(EMSHA_NO_HEXLUT)
|
|
||||||
])
|
|
||||||
|
|
||||||
AS_IF([test "x$enable_selftest" == "xno"], [
|
|
||||||
AC_MSG_NOTICE([disabling the internal self tests.])
|
|
||||||
AC_DEFINE(EMSHA_NO_SELFTEST)
|
|
||||||
])
|
|
||||||
|
|
||||||
|
|
||||||
AM_CONDITIONAL([HAVE_SPHINX],
|
|
||||||
[test -n "$SPHINX"])
|
|
||||||
|
|
||||||
AC_OUTPUT
|
|
||||||
|
|
@ -1,43 +0,0 @@
|
||||||
#!/bin/sh
|
|
||||||
|
|
||||||
set -e
|
|
||||||
|
|
||||||
VERSION="@PACKAGE_VERSION@"
|
|
||||||
TARBALL="@PACKAGE_NAME@-$VERSION"
|
|
||||||
|
|
||||||
make clean
|
|
||||||
echo "[+] rebuilding single ReST doc"
|
|
||||||
cd doc && make clean singlerst clean && cd ..
|
|
||||||
echo "[+] building release tarballs"
|
|
||||||
make dist-gzip
|
|
||||||
if [ ! -e "$TARBALL.tar.gz" ]
|
|
||||||
then
|
|
||||||
>&2 echo "[!] Expected to find ${TARBALL}.tar.gz, but it wasn't found."
|
|
||||||
>&2 echo " Cannot proceed, aborting."
|
|
||||||
exit 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
make dist-zip
|
|
||||||
if [ ! -e "$TARBALL.zip" ]
|
|
||||||
then
|
|
||||||
>&2 echo "[!] Expected to find ${TARBALL}.zip, but it wasn't found."
|
|
||||||
>&2 echo " Cannot proceed, aborting."
|
|
||||||
exit 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
mv "${TARBALL}.tar.gz" "@PACKAGE_NAME@-release.tar.gz"
|
|
||||||
mv "${TARBALL}.zip" "@PACKAGE_NAME@-release.zip"
|
|
||||||
|
|
||||||
echo "[+] building release notes"
|
|
||||||
RELEASE_NOTES_AWK="/^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)? \([0-9]{4}-[0-9]{2}-[0-9]{2}\):/{
|
|
||||||
nmatch++;
|
|
||||||
if (nmatch>1) exit
|
|
||||||
}
|
|
||||||
|
|
||||||
{
|
|
||||||
if (nmatch>0)
|
|
||||||
print \$0;
|
|
||||||
}"
|
|
||||||
|
|
||||||
awk "$RELEASE_NOTES_AWK" CHANGELOG > RELEASE_NOTES
|
|
||||||
echo "[+] release is ready"
|
|
||||||
204
doc/Makefile
204
doc/Makefile
|
|
@ -1,204 +0,0 @@
|
||||||
# Makefile for Sphinx documentation
|
|
||||||
#
|
|
||||||
|
|
||||||
# You can set these variables from the command line.
|
|
||||||
SPHINXOPTS =
|
|
||||||
SPHINXBUILD = sphinx-build
|
|
||||||
PAPER =
|
|
||||||
BUILDDIR = build
|
|
||||||
|
|
||||||
# User-friendly check for sphinx-build
|
|
||||||
ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
|
|
||||||
$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
|
|
||||||
endif
|
|
||||||
|
|
||||||
# Internal variables.
|
|
||||||
PAPEROPT_a4 = -D latex_paper_size=a4
|
|
||||||
PAPEROPT_letter = -D latex_paper_size=letter
|
|
||||||
ALLSPHINXOPTS = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
|
|
||||||
# the i18n builder cannot share the environment and doctrees with the others
|
|
||||||
I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
|
|
||||||
|
|
||||||
.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext check
|
|
||||||
|
|
||||||
help:
|
|
||||||
@echo "Please use \`make <target>' where <target> is one of"
|
|
||||||
@echo " html to make standalone HTML files"
|
|
||||||
@echo " dirhtml to make HTML files named index.html in directories"
|
|
||||||
@echo " singlehtml to make a single large HTML file"
|
|
||||||
@echo " pickle to make pickle files"
|
|
||||||
@echo " json to make JSON files"
|
|
||||||
@echo " htmlhelp to make HTML files and a HTML help project"
|
|
||||||
@echo " qthelp to make HTML files and a qthelp project"
|
|
||||||
@echo " devhelp to make HTML files and a Devhelp project"
|
|
||||||
@echo " epub to make an epub"
|
|
||||||
@echo " latex to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
|
|
||||||
@echo " latexpdf to make LaTeX files and run them through pdflatex"
|
|
||||||
@echo " latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
|
|
||||||
@echo " text to make text files"
|
|
||||||
@echo " man to make manual pages"
|
|
||||||
@echo " texinfo to make Texinfo files"
|
|
||||||
@echo " info to make Texinfo files and run them through makeinfo"
|
|
||||||
@echo " gettext to make PO message catalogs"
|
|
||||||
@echo " changes to make an overview of all changed/added/deprecated items"
|
|
||||||
@echo " xml to make Docutils-native XML files"
|
|
||||||
@echo " pseudoxml to make pseudoxml-XML files for display purposes"
|
|
||||||
@echo " linkcheck to check all external links for integrity"
|
|
||||||
@echo " doctest to run all doctests embedded in the documentation (if enabled)"
|
|
||||||
|
|
||||||
# The autotools Makefiles don't seem to do anything for docs in all or check.
|
|
||||||
all:
|
|
||||||
check:
|
|
||||||
|
|
||||||
distclean: clean
|
|
||||||
rm -f source/header*.rst
|
|
||||||
rm -f source/conf.py
|
|
||||||
|
|
||||||
clean:
|
|
||||||
rm -rf $(BUILDDIR)/*
|
|
||||||
|
|
||||||
html:
|
|
||||||
$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
|
|
||||||
|
|
||||||
dirhtml:
|
|
||||||
$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
|
|
||||||
|
|
||||||
singlehtml:
|
|
||||||
$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
|
|
||||||
|
|
||||||
pickle:
|
|
||||||
$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
|
|
||||||
@echo
|
|
||||||
@echo "Build finished; now you can process the pickle files."
|
|
||||||
|
|
||||||
json:
|
|
||||||
$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
|
|
||||||
@echo
|
|
||||||
@echo "Build finished; now you can process the JSON files."
|
|
||||||
|
|
||||||
htmlhelp:
|
|
||||||
$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
|
|
||||||
@echo
|
|
||||||
@echo "Build finished; now you can run HTML Help Workshop with the" \
|
|
||||||
".hhp project file in $(BUILDDIR)/htmlhelp."
|
|
||||||
|
|
||||||
qthelp:
|
|
||||||
$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
|
|
||||||
@echo
|
|
||||||
@echo "Build finished; now you can run "qcollectiongenerator" with the" \
|
|
||||||
".qhcp project file in $(BUILDDIR)/qthelp, like this:"
|
|
||||||
@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/PACKAGE_NAME.qhcp"
|
|
||||||
@echo "To view the help file:"
|
|
||||||
@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/PACKAGE_NAME.qhc"
|
|
||||||
|
|
||||||
devhelp:
|
|
||||||
$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
|
|
||||||
@echo
|
|
||||||
@echo "Build finished."
|
|
||||||
@echo "To view the help file:"
|
|
||||||
@echo "# mkdir -p $$HOME/.local/share/devhelp/PACKAGE_NAME"
|
|
||||||
@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/PACKAGE_NAME"
|
|
||||||
@echo "# devhelp"
|
|
||||||
|
|
||||||
epub:
|
|
||||||
$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
|
|
||||||
|
|
||||||
latex:
|
|
||||||
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
|
|
||||||
@echo
|
|
||||||
@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
|
|
||||||
@echo "Run \`make' in that directory to run these through (pdf)latex" \
|
|
||||||
"(use \`make latexpdf' here to do that automatically)."
|
|
||||||
|
|
||||||
pdf: latexpdf
|
|
||||||
|
|
||||||
latexpdf:
|
|
||||||
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
|
|
||||||
@echo "Running LaTeX files through pdflatex..."
|
|
||||||
$(MAKE) -C $(BUILDDIR)/latex all-pdf
|
|
||||||
@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
|
|
||||||
|
|
||||||
latexpdfja:
|
|
||||||
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
|
|
||||||
@echo "Running LaTeX files through platex and dvipdfmx..."
|
|
||||||
$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
|
|
||||||
@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
|
|
||||||
|
|
||||||
text:
|
|
||||||
$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The text files are in $(BUILDDIR)/text."
|
|
||||||
|
|
||||||
man:
|
|
||||||
$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
|
|
||||||
|
|
||||||
texinfo:
|
|
||||||
$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
|
|
||||||
@echo "Run \`make' in that directory to run these through makeinfo" \
|
|
||||||
"(use \`make info' here to do that automatically)."
|
|
||||||
|
|
||||||
info:
|
|
||||||
$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
|
|
||||||
@echo "Running Texinfo files through makeinfo..."
|
|
||||||
make -C $(BUILDDIR)/texinfo info
|
|
||||||
@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
|
|
||||||
|
|
||||||
gettext:
|
|
||||||
$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
|
|
||||||
|
|
||||||
changes:
|
|
||||||
$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
|
|
||||||
@echo
|
|
||||||
@echo "The overview file is in $(BUILDDIR)/changes."
|
|
||||||
|
|
||||||
linkcheck:
|
|
||||||
$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
|
|
||||||
@echo
|
|
||||||
@echo "Link check complete; look for any errors in the above output " \
|
|
||||||
"or in $(BUILDDIR)/linkcheck/output.txt."
|
|
||||||
|
|
||||||
doctest:
|
|
||||||
$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
|
|
||||||
@echo "Testing of doctests in the sources finished, look at the " \
|
|
||||||
"results in $(BUILDDIR)/doctest/output.txt."
|
|
||||||
|
|
||||||
xml:
|
|
||||||
$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
|
|
||||||
|
|
||||||
pseudoxml:
|
|
||||||
$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
|
|
||||||
@echo
|
|
||||||
@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."
|
|
||||||
|
|
||||||
singlerst:
|
|
||||||
sed -e "s/@BUILD_DATE@/$$(date +'%Y-%m-%d')/" \
|
|
||||||
source/header.rst > source/header.dated.rst
|
|
||||||
cat source/header.dated.rst \
|
|
||||||
source/intro.rst \
|
|
||||||
source/building.rst \
|
|
||||||
source/overview.rst \
|
|
||||||
source/hash.rst \
|
|
||||||
source/sha256.rst \
|
|
||||||
source/hmac.rst \
|
|
||||||
source/misc.rst \
|
|
||||||
source/tests.rst \
|
|
||||||
source/refs.rst \
|
|
||||||
> libemsha.rst
|
|
||||||
|
|
||||||
|
|
||||||
601
doc/libemsha.rst
601
doc/libemsha.rst
|
|
@ -1,601 +0,0 @@
|
||||||
========
|
|
||||||
libemsha
|
|
||||||
========
|
|
||||||
|
|
||||||
Version: 1.0.2
|
|
||||||
|
|
||||||
Date: 2016-01-28
|
|
||||||
|
|
||||||
|
|
||||||
-----------------
|
|
||||||
Table of Contents
|
|
||||||
-----------------
|
|
||||||
|
|
||||||
+ Introduction
|
|
||||||
+ Getting and Building the Source
|
|
||||||
+ Library Overview
|
|
||||||
+ The Hash interface
|
|
||||||
+ The SHA256 class
|
|
||||||
+ The HMAC class
|
|
||||||
+ Miscellaneous functions
|
|
||||||
+ Test Programs
|
|
||||||
+ References
|
|
||||||
|
|
||||||
|
|
||||||
-------------
|
|
||||||
Introduction
|
|
||||||
-------------
|
|
||||||
|
|
||||||
This library is an MIT-licensed compact HMAC-SHA-256 C++11 library
|
|
||||||
designed for embedded systems. It is built following the JPL `Power of
|
|
||||||
Ten <http://spinroot.com/gerard/pdf/P10.pdf>`_ rules.
|
|
||||||
|
|
||||||
This library came about as a result of a need for a standalone
|
|
||||||
SHA-256 library for an embedded system. The original goal was
|
|
||||||
to implement a wrapper around the code extracted from `RFC 6234
|
|
||||||
<https://tools.ietf.org/html/rfc6234>`_; instead a standalone
|
|
||||||
implementation was decided on.
|
|
||||||
|
|
||||||
Additional resources:
|
|
||||||
|
|
||||||
+ `Github page <https://github.com/kisom/libemsha>`_
|
|
||||||
+ `Travis CI status <https://travis-ci.org/kisom/libemsha/>`_
|
|
||||||
+ `Coverity Scan page <https://scan.coverity.com/projects/libemsha-52f2a5fd-e759-43c2-9073-cf6c2ed9abdb>`_
|
|
||||||
|
|
||||||
|
|
||||||
-------------------------------
|
|
||||||
Getting and Building the Source
|
|
||||||
-------------------------------
|
|
||||||
|
|
||||||
The source code is available via `Github
|
|
||||||
<https://github.com/kisom/libemsha/>`_; each version should be git tagged. ::
|
|
||||||
|
|
||||||
git clone https://github.com/kisom/libemsha
|
|
||||||
git clone git@github.com:kisom/libemsha
|
|
||||||
|
|
||||||
The current release is `1.0.0 <https://github.com/kisom/libemsha/archive/1.0.0.zip>`_.
|
|
||||||
|
|
||||||
The project is built using Autotools and ``make``.
|
|
||||||
|
|
||||||
When building from a git checkout, the `autobuild` script will bootstrap
|
|
||||||
the project from the autotools sources (e.g. via ``autoreconf -i``),
|
|
||||||
run ``configurei`` (by default to use clang), and attempt to build the library
|
|
||||||
and run the unit tests.
|
|
||||||
|
|
||||||
Once the autotools infrastructure has been bootstrapped, the following
|
|
||||||
should work: ::
|
|
||||||
|
|
||||||
./configure && make && make check && make install
|
|
||||||
|
|
||||||
There are three flags to ``configure`` that might be useful:
|
|
||||||
|
|
||||||
+ ``--disable-hexstring`` disables the provided ``hexstring`` function;
|
|
||||||
while this might be useful in many cases, it also adds extra size to
|
|
||||||
the code.
|
|
||||||
|
|
||||||
+ ``--disable-hexlut`` disables the larger lookup table used by
|
|
||||||
``hexstring``, which can save around a kilobyte of program space. If
|
|
||||||
the ``hexstring`` function is disabled, this option has no effect.
|
|
||||||
|
|
||||||
+ ``--disable-selftest`` disables the internal self-tests, which can
|
|
||||||
reclaim some additional program space.
|
|
||||||
|
|
||||||
----------------
|
|
||||||
Library Overview
|
|
||||||
----------------
|
|
||||||
|
|
||||||
.. cpp:namespace:: emsha
|
|
||||||
|
|
||||||
The package provides a pair of classes, :cpp:class:`SHA256` and
|
|
||||||
:cpp:class:`HMAC`, that both satisfy a common interface :cpp:class:`Hash`. All
|
|
||||||
functionality provided by this library is found under the ``emsha`` namespace.
|
|
||||||
|
|
||||||
|
|
||||||
``EMSHA_RESULT``
|
|
||||||
^^^^^^^^^^^^^^^^^
|
|
||||||
|
|
||||||
The ``EMSHA_RESULT`` enum is used to convey the result of an
|
|
||||||
operation. The possible values are:
|
|
||||||
|
|
||||||
.. cpp:enum:: _EMSHA_RESULT_ : uint8_t
|
|
||||||
|
|
||||||
::
|
|
||||||
|
|
||||||
// All operations have completed successfully so far.
|
|
||||||
EMSHA_ROK = 0,
|
|
||||||
|
|
||||||
// A self test or unit test failed.
|
|
||||||
EMSHA_TEST_FAILURE = 1,
|
|
||||||
|
|
||||||
// A null pointer was passed in as a buffer where it
|
|
||||||
// shouldn't have been.
|
|
||||||
EMSHA_NULLPTR = 2,
|
|
||||||
|
|
||||||
// The Hash is in an invalid state.
|
|
||||||
EMSHA_INVALID_STATE = 3,
|
|
||||||
|
|
||||||
// The input to SHA256::update is too large.
|
|
||||||
SHA256_INPUT_TOO_LONG = 4,
|
|
||||||
|
|
||||||
// The self tests have been disabled, but a self test
|
|
||||||
// function was called.
|
|
||||||
EMSHA_SELFTEST_DISABLED = 5
|
|
||||||
|
|
||||||
As a convenience, the following ``typedef`` is also provided.
|
|
||||||
|
|
||||||
``typedef enum _EMSHA_RESULT_`` :cpp:type:`EMSHA_RESULT`
|
|
||||||
|
|
||||||
|
|
||||||
------------------
|
|
||||||
The Hash interface
|
|
||||||
------------------
|
|
||||||
|
|
||||||
.. cpp:class:: emsha::Hash
|
|
||||||
|
|
||||||
The ``Hash`` class contains a top-level interface for the objects in
|
|
||||||
this library.
|
|
||||||
|
|
||||||
In general, a `Hash` is used along the lines of: ::
|
|
||||||
|
|
||||||
emsha::EMSHA_RESULT
|
|
||||||
hash_single_pass(uint8_t *m, uint32_t ml, uint8_t *digest)
|
|
||||||
{
|
|
||||||
// Depending on the implementation, the constructor may need
|
|
||||||
// arguments.
|
|
||||||
emsha::Hash h;
|
|
||||||
emsha::EMSHA_RESULT res;
|
|
||||||
|
|
||||||
res = h.write(m, ml);
|
|
||||||
if (emsha::EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
// digest will contain the output of the Hash, and the
|
|
||||||
// caller MUST ensure that there is enough space in
|
|
||||||
// the buffer.
|
|
||||||
return h.result(d);
|
|
||||||
}
|
|
||||||
|
|
||||||
Methods
|
|
||||||
^^^^^^^
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT reset(void)
|
|
||||||
|
|
||||||
reset should bring the Hash back into its initial state. That is,
|
|
||||||
the idea is that::
|
|
||||||
|
|
||||||
hash->reset();
|
|
||||||
hash->update(...); // possibly many of these...
|
|
||||||
hash->result(...); // should always return the same hash.
|
|
||||||
|
|
||||||
is idempotent, assuming the inputs to ``update`` and ``result``
|
|
||||||
are constant. The implications of this for a given concrete class
|
|
||||||
should be described in that class's documentation, but in general,
|
|
||||||
it has the effect of preserving any initial state while removing any
|
|
||||||
data written to the Hash via the update method.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT update(const uint8_t *m, uint32_t ml)
|
|
||||||
|
|
||||||
``update`` is used to write message data into
|
|
||||||
the Hash.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT finalize(uint8_t *d)
|
|
||||||
|
|
||||||
``finalize`` should carry out any final operations on the `Hash`;
|
|
||||||
after a call to finalize, no more data can be written. Additionally,
|
|
||||||
it transfers out the resulting hash into its argument.
|
|
||||||
|
|
||||||
Note that this library does not allocate memory, and therefore the
|
|
||||||
caller *must* ensure that ``d`` is a valid buffer containing at least
|
|
||||||
``this->size()`` bytes.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT result(uint8_t *d)
|
|
||||||
|
|
||||||
``result`` is used to transfer out the hash to the argument. This implies
|
|
||||||
that the `Hash` must keep enough state for repeated calls to ``result``
|
|
||||||
to work.
|
|
||||||
|
|
||||||
.. cpp:function:: uint32_t size(void)
|
|
||||||
|
|
||||||
``size`` should return the output size of the `Hash`; this is, how large
|
|
||||||
the buffers written to by ``result`` should be.
|
|
||||||
|
|
||||||
-----------------
|
|
||||||
The SHA256 class
|
|
||||||
-----------------
|
|
||||||
|
|
||||||
.. cpp:class:: emsha::SHA256
|
|
||||||
|
|
||||||
SHA256 is an implementation of the :cpp:class:`emsha::Hash` interface
|
|
||||||
implementing the SHA-256 cryptographic hash algorithm
|
|
||||||
|
|
||||||
.. cpp:function:: SHA256::SHA256()
|
|
||||||
|
|
||||||
A SHA256 context does not need any special construction. It can be
|
|
||||||
declared and immediately start being used.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: SHA256::~SHA256()
|
|
||||||
|
|
||||||
The SHA256 destructor will clear out its internal message buffer;
|
|
||||||
all of the members are local and not resource handles, so cleanup
|
|
||||||
is minimal.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::reset(void)
|
|
||||||
|
|
||||||
reset clears the internal state of the `SHA256` context and returns
|
|
||||||
it to its initial state. It should always return ``EMSHA_ROK``.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::update(const uint8_t *m, uint32_t ml)
|
|
||||||
|
|
||||||
update writes data into the context. While there is an upper limit
|
|
||||||
on the size of data that SHA-256 can operate on, this package is
|
|
||||||
designed for small systems that will not approach that level of
|
|
||||||
data (which is on the order of 2 exabytes), so it is not thought to
|
|
||||||
be a concern.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
+ ``m``: a byte array containing the message to be written. It must
|
|
||||||
not be NULL (unless the message length is zero).
|
|
||||||
|
|
||||||
+ ``ml``: the message length, in bytes.
|
|
||||||
|
|
||||||
**Return values**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``m`` is NULL and ``ml`` is nonzero.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the `update` is called
|
|
||||||
after a call to `finalize`.
|
|
||||||
|
|
||||||
* ``SHA256_INPUT_TOO_LONG`` is returned if too much data has been
|
|
||||||
written to the context.
|
|
||||||
|
|
||||||
+ ``EMSHA_ROK`` is returned if the data was successfully added to
|
|
||||||
the SHA-256 context.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::finalize(uint8_t *d)
|
|
||||||
|
|
||||||
``finalize`` completes the digest. Once this method is called, the
|
|
||||||
context cannot be updated unless the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* d: a byte buffer that must be at least ``SHA256.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the SHA-256 context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::result(uint8_t *d)
|
|
||||||
|
|
||||||
``result`` copies the result from the SHA-256 context into the
|
|
||||||
buffer pointed to by ``d``, running finalize if needed. Once
|
|
||||||
called, the context cannot be updated until the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* ``d``: a byte buffer that must be at least ``SHA256.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the SHA-256 context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
.. cpp:function:: uint32_t SHA256::size(void)
|
|
||||||
|
|
||||||
``size`` returns the output size of SHA256, e.g.
|
|
||||||
the size that the buffers passed to ``finalize``
|
|
||||||
and ``result`` should be.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* a ``uint32_t`` representing the expected size of buffers passed
|
|
||||||
to ``result`` and ``finalize``.
|
|
||||||
|
|
||||||
|
|
||||||
--------------
|
|
||||||
The HMAC class
|
|
||||||
--------------
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:class:: emsha::HMAC
|
|
||||||
|
|
||||||
HMAC is an implementation of the :cpp:class:`emsha::Hash` interface
|
|
||||||
implementing the HMAC keyed-hash message authentication code as
|
|
||||||
defined in FIPS 198-1, using SHA-256 internally.
|
|
||||||
|
|
||||||
.. cpp:function:: HMAC::HMAC(const uint8_t *key, uint32_t keylen)
|
|
||||||
|
|
||||||
An HMAC context must be initialised with a key.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: HMAc::~HMAC()
|
|
||||||
|
|
||||||
The HMAC destructor will attempt to wipe the key and reset the
|
|
||||||
underlying SHA-256 context.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT HMAC::reset(void)
|
|
||||||
|
|
||||||
reset clears the internal state of the `HMAC` context and returns
|
|
||||||
it to its initial state. It should always return ``EMSHA_ROK``.
|
|
||||||
This function will **not** wipe the key; an `HMAC` object that has
|
|
||||||
`reset` called it can be used immediately after.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT HMAC::update(const uint8_t *m, uint32_t ml)
|
|
||||||
|
|
||||||
update writes data into the context. While there is an upper limit on
|
|
||||||
the size of data that the underlying SHA-256 context can operate on,
|
|
||||||
this package is designed for small systems that will not approach
|
|
||||||
that level of data (which is on the order of 2 exabytes), so it is
|
|
||||||
not thought to be a concern.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
+ ``m``: a byte array containing the message to be written. It must
|
|
||||||
not be NULL (unless the message length is zero).
|
|
||||||
|
|
||||||
+ ``ml``: the message length, in bytes.
|
|
||||||
|
|
||||||
**Return values**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``m`` is NULL and ``ml`` is nonzero.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the `update` is called
|
|
||||||
after a call to `finalize`.
|
|
||||||
|
|
||||||
* ``SHA256_INPUT_TOO_LONG`` is returned if too much data has been
|
|
||||||
written to the context.
|
|
||||||
|
|
||||||
+ ``EMSHA_ROK`` is returned if the data was successfully added to
|
|
||||||
the HMAC context.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::finalize(uint8_t *d)
|
|
||||||
|
|
||||||
``finalize`` completes the digest. Once this method is called, the
|
|
||||||
context cannot be updated unless the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* d: a byte buffer that must be at least ``SHA256.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the HMAC context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::result(uint8_t *d)
|
|
||||||
|
|
||||||
``result`` copies the result from the HMAC context into the
|
|
||||||
buffer pointed to by ``d``, running finalize if needed. Once
|
|
||||||
called, the context cannot be updated until the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* ``d``: a byte buffer that must be at least ``HMAC.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the HMAC context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
.. cpp:function:: uint32_t SHA256::size(void)
|
|
||||||
|
|
||||||
``size`` returns the output size of HMAC, e.g. the size that the
|
|
||||||
buffers passed to ``finalize`` and ``result`` should be.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* a ``uint32_t`` representing the expected size of buffers passed
|
|
||||||
to ``result`` and ``finalize``.
|
|
||||||
|
|
||||||
-----------------------
|
|
||||||
Miscellaneous functions
|
|
||||||
-----------------------
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT sha256_self_test(void)
|
|
||||||
|
|
||||||
If the library was `compiled with support for self tests
|
|
||||||
<./building.html>`_ (the default), this function will run a few self
|
|
||||||
tests on the SHA-256 functions to validate that they are working
|
|
||||||
correctly.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` if the self-test completed successfully.
|
|
||||||
|
|
||||||
* ``EMSHA_TEST_FAILURE`` if the SHA-256 functions did not produce
|
|
||||||
the expected value.
|
|
||||||
|
|
||||||
* ``EMSHA_SELFTEST_DISABLED`` if the library was built without
|
|
||||||
support for the self test.
|
|
||||||
|
|
||||||
* If an error occurs in the SHA-256 code, the resulting error code
|
|
||||||
will be returned.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT sha256_digest(const uint8_t *m, uint32_t ml, uint8_t *d)
|
|
||||||
|
|
||||||
The ``sha256_digest`` function will compute the digest on the
|
|
||||||
``ml``-byte octet string stored in ``m``, returning the result
|
|
||||||
in ``d``. This is a convenience function implemented as: ::
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
sha256_digest(const uint8_t *m, uint32_t ml, uint8_t *d)
|
|
||||||
{
|
|
||||||
SHA256 h;
|
|
||||||
EMSHA_RESULT ret;
|
|
||||||
|
|
||||||
if (EMSHA_ROK != (ret = h.update(m, ml))) {
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
return h.finalize(d);
|
|
||||||
}
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT compute_hmac(const uint8_t *k, uint32_t kl, const uint8_t *m, uint32_t ml, uint8_t *d)
|
|
||||||
|
|
||||||
The ``compute_hmac`` function computes the MAC on the ``ml``-byte
|
|
||||||
octet string stored in``m``, using the ``kl``-length key ``k``. The
|
|
||||||
result is stored in ``d``. This is a convenience function implemented
|
|
||||||
as: ::
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
compute_hmac(const uint8_t *k, uint32_t kl, const uint8_t *m, uint32_t ml,
|
|
||||||
uint8_t *d)
|
|
||||||
{
|
|
||||||
EMSHA_RESULT res;
|
|
||||||
HMAC h(k, kl);
|
|
||||||
|
|
||||||
res = h.update(m, ml);
|
|
||||||
if (EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
res = h.result(d);
|
|
||||||
if (EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
.. cpp:function:: bool hash_equal(const uint8_t *a, const uint8_t *b)
|
|
||||||
|
|
||||||
``hash_equal`` performs a constant-time comparison of the first
|
|
||||||
``emsha::SHA256_HASH_SIZE`` bytes in the two byte array arguments.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* ``a``, ``b``: byte arrays at least ``emsha::SHA256_HASH_SIZE``
|
|
||||||
bytes in length.
|
|
||||||
|
|
||||||
** Outputs**:
|
|
||||||
|
|
||||||
* true *iff* the first ``emsha::SHA256_HASH_SIZE`` bytes match in
|
|
||||||
both arrays.
|
|
||||||
|
|
||||||
* false otherwise.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: void hexstring(uint8_t *dest, uint8_t *src, uint32_t srclen)
|
|
||||||
|
|
||||||
**Note**: this function is only present if the library was
|
|
||||||
`built with support <./building.html>`_ for the hexstring functionality.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* dest: a byte array that is 2 * ``srclen``.
|
|
||||||
|
|
||||||
* src: a byte array containing the data to process.
|
|
||||||
|
|
||||||
* srclen: the size of ``src``.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
When the function returns, the hex-encoded string will be placed in
|
|
||||||
``dest``.
|
|
||||||
|
|
||||||
-------------
|
|
||||||
Test Programs
|
|
||||||
-------------
|
|
||||||
|
|
||||||
Running ``make check`` builds and runs the test programs. These are:
|
|
||||||
|
|
||||||
* ``emsha_core_test`` runs the core tests.
|
|
||||||
* ``emsha_sha256_test`` runs test vectors on the SHA-256 code.
|
|
||||||
* ``emsha_hmac_test`` runs test vectors on the HMAC code.
|
|
||||||
|
|
||||||
Additionally, the following test programs are built but not run. These
|
|
||||||
programs do not link with the library as the above programs do; instead,
|
|
||||||
they compile the object files in to avoid the libtool dance before the
|
|
||||||
library is installed.
|
|
||||||
|
|
||||||
* ``emsha_mem_test`` and ``emsha_static_mem_test`` are for memory
|
|
||||||
profiling (e.g., with `Valgrind <http://valgrind.org/>`_ during
|
|
||||||
development.
|
|
||||||
|
|
||||||
* ``emsha_static_sha256_test`` and ``emsha_static_hmac_test`` are used
|
|
||||||
to facilitate testing and debugging the library. These programs run
|
|
||||||
the same tests as the ``emsha_sha256_test`` and ``emsha_hmac_test``
|
|
||||||
programs.
|
|
||||||
|
|
||||||
|
|
||||||
Core Tests
|
|
||||||
^^^^^^^^^^
|
|
||||||
|
|
||||||
There are three tests run in the core tests: a hexstring test (if
|
|
||||||
`support is built in <./building.html>`_) and the constant time
|
|
||||||
check. The constant time test does not validate that the function
|
|
||||||
is constant time, only that it correctly verifies that two byte
|
|
||||||
arrays are equal.
|
|
||||||
|
|
||||||
|
|
||||||
SHA-256 Tests
|
|
||||||
^^^^^^^^^^^^^
|
|
||||||
|
|
||||||
The SHA-256 checks take a number of test vectors from the Go standard
|
|
||||||
library's SHA-256 library.
|
|
||||||
|
|
||||||
|
|
||||||
HMAC Tests
|
|
||||||
^^^^^^^^^^
|
|
||||||
|
|
||||||
The HMAC checks apply the `RFC 4231 <http://tools.ietf.org/html/rfc4231>`_
|
|
||||||
test vectors to the HMAC code.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
----------
|
|
||||||
References
|
|
||||||
----------
|
|
||||||
|
|
||||||
* `FIPS 180-4, the Secure Hash Standard <http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf>`_
|
|
||||||
* `FIPS 198-1, The Keyed-Hash Message Authentication Code (HMAC) <http://csrc.nist.gov/publications/fips/fips198-1/FIPS-198-1_final.pdf>`_
|
|
||||||
* `RFC 2014, HMAC: Keyed-Hashing for Message Authentication <https://tools.ietf.org/html/rfc2104>`_
|
|
||||||
* `RFC 6234, US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF) <https://tools.ietf.org/html/rfc6234>`_\ [#f1]_
|
|
||||||
* The behaviour of this package was cross-checked using the Go 1.5.1
|
|
||||||
linux/amd64 standard library's `crypto/sha256 <https://golang.org/src/crypto/sha256/>`_
|
|
||||||
package.
|
|
||||||
|
|
||||||
.. rubric:: Footnotes
|
|
||||||
|
|
||||||
.. [#f1] This library came about after extracting the relevant C code
|
|
||||||
from RFC 6234, and needing a C++ version. It draws heavy
|
|
||||||
inspiration from that code base.
|
|
||||||
|
|
@ -1,37 +0,0 @@
|
||||||
-------------------------------
|
|
||||||
Getting and Building the Source
|
|
||||||
-------------------------------
|
|
||||||
|
|
||||||
The source code is available via `Github
|
|
||||||
<https://github.com/kisom/libemsha/>`_; each version should be git tagged. ::
|
|
||||||
|
|
||||||
git clone https://github.com/kisom/libemsha
|
|
||||||
git clone git@github.com:kisom/libemsha
|
|
||||||
|
|
||||||
The current release is `1.0.0 <https://github.com/kisom/libemsha/archive/1.0.0.zip>`_.
|
|
||||||
|
|
||||||
The project is built using Autotools and ``make``.
|
|
||||||
|
|
||||||
When building from a git checkout, the `autobuild` script will bootstrap
|
|
||||||
the project from the autotools sources (e.g. via ``autoreconf -i``),
|
|
||||||
run ``configurei`` (by default to use clang), and attempt to build the library
|
|
||||||
and run the unit tests.
|
|
||||||
|
|
||||||
Once the autotools infrastructure has been bootstrapped, the following
|
|
||||||
should work: ::
|
|
||||||
|
|
||||||
./configure && make && make check && make install
|
|
||||||
|
|
||||||
There are three flags to ``configure`` that might be useful:
|
|
||||||
|
|
||||||
+ ``--disable-hexstring`` disables the provided ``hexstring`` function;
|
|
||||||
while this might be useful in many cases, it also adds extra size to
|
|
||||||
the code.
|
|
||||||
|
|
||||||
+ ``--disable-hexlut`` disables the larger lookup table used by
|
|
||||||
``hexstring``, which can save around a kilobyte of program space. If
|
|
||||||
the ``hexstring`` function is disabled, this option has no effect.
|
|
||||||
|
|
||||||
+ ``--disable-selftest`` disables the internal self-tests, which can
|
|
||||||
reclaim some additional program space.
|
|
||||||
|
|
||||||
|
|
@ -1,335 +0,0 @@
|
||||||
# -*- coding: utf-8 -*-
|
|
||||||
#
|
|
||||||
# @PACKAGE_NAME@ documentation build configuration file, created by
|
|
||||||
# sphinx-quickstart on Tue Dec 15 23:35:10 2015.
|
|
||||||
#
|
|
||||||
# This file is execfile()d with the current directory set to its
|
|
||||||
# containing dir.
|
|
||||||
#
|
|
||||||
# Note that not all possible configuration values are present in this
|
|
||||||
# autogenerated file.
|
|
||||||
#
|
|
||||||
# All configuration values have a default; values that are commented out
|
|
||||||
# serve to show the default.
|
|
||||||
|
|
||||||
import sys
|
|
||||||
import os
|
|
||||||
|
|
||||||
import sphinx_rtd_theme
|
|
||||||
|
|
||||||
# If extensions (or modules to document with autodoc) are in another directory,
|
|
||||||
# add these directories to sys.path here. If the directory is relative to the
|
|
||||||
# documentation root, use os.path.abspath to make it absolute, like shown here.
|
|
||||||
#sys.path.insert(0, os.path.abspath('.'))
|
|
||||||
|
|
||||||
# -- General configuration ------------------------------------------------
|
|
||||||
|
|
||||||
# If your documentation needs a minimal Sphinx version, state it here.
|
|
||||||
#needs_sphinx = '1.0'
|
|
||||||
|
|
||||||
# Add any Sphinx extension module names here, as strings. They can be
|
|
||||||
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
|
|
||||||
# ones.
|
|
||||||
extensions = [
|
|
||||||
'sphinx.ext.todo',
|
|
||||||
]
|
|
||||||
|
|
||||||
# Add any paths that contain templates here, relative to this directory.
|
|
||||||
templates_path = ['_templates']
|
|
||||||
|
|
||||||
# The suffix of source filenames.
|
|
||||||
source_suffix = '.rst'
|
|
||||||
|
|
||||||
# The encoding of source files.
|
|
||||||
#source_encoding = 'utf-8-sig'
|
|
||||||
|
|
||||||
# The master toctree document.
|
|
||||||
master_doc = 'index'
|
|
||||||
|
|
||||||
# General information about the project.
|
|
||||||
project = u'@PACKAGE_NAME@'
|
|
||||||
copyright = u'2015, K. Isom <coder@kyleisom.net>'
|
|
||||||
|
|
||||||
# The version info for the project you're documenting, acts as replacement for
|
|
||||||
# |version| and |release|, also used in various other places throughout the
|
|
||||||
# built documents.
|
|
||||||
#
|
|
||||||
# The short X.Y version.
|
|
||||||
version = '@PACKAGE_VERSION@'
|
|
||||||
# The full version, including alpha/beta/rc tags.
|
|
||||||
release = '@PACKAGE_VERSION@'
|
|
||||||
|
|
||||||
# The language for content autogenerated by Sphinx. Refer to documentation
|
|
||||||
# for a list of supported languages.
|
|
||||||
#language = None
|
|
||||||
|
|
||||||
# There are two options for replacing |today|: either, you set today to some
|
|
||||||
# non-false value, then it is used:
|
|
||||||
#today = ''
|
|
||||||
# Else, today_fmt is used as the format for a strftime call.
|
|
||||||
#today_fmt = '%B %d, %Y'
|
|
||||||
|
|
||||||
# List of patterns, relative to source directory, that match files and
|
|
||||||
# directories to ignore when looking for source files.
|
|
||||||
exclude_patterns = []
|
|
||||||
|
|
||||||
# The reST default role (used for this markup: `text`) to use for all
|
|
||||||
# documents.
|
|
||||||
#default_role = None
|
|
||||||
|
|
||||||
# If true, '()' will be appended to :func: etc. cross-reference text.
|
|
||||||
#add_function_parentheses = True
|
|
||||||
|
|
||||||
# If true, the current module name will be prepended to all description
|
|
||||||
# unit titles (such as .. function::).
|
|
||||||
#add_module_names = True
|
|
||||||
|
|
||||||
# If true, sectionauthor and moduleauthor directives will be shown in the
|
|
||||||
# output. They are ignored by default.
|
|
||||||
#show_authors = False
|
|
||||||
|
|
||||||
# The name of the Pygments (syntax highlighting) style to use.
|
|
||||||
pygments_style = 'sphinx'
|
|
||||||
|
|
||||||
# A list of ignored prefixes for module index sorting.
|
|
||||||
#modindex_common_prefix = []
|
|
||||||
|
|
||||||
# If true, keep warnings as "system message" paragraphs in the built documents.
|
|
||||||
#keep_warnings = False
|
|
||||||
|
|
||||||
highlight_language = 'c++'
|
|
||||||
|
|
||||||
|
|
||||||
# -- Options for HTML output ----------------------------------------------
|
|
||||||
|
|
||||||
# The theme to use for HTML and HTML Help pages. See the documentation for
|
|
||||||
# a list of builtin themes.
|
|
||||||
html_theme = 'sphinx_rtd_theme'
|
|
||||||
|
|
||||||
# Theme options are theme-specific and customize the look and feel of a theme
|
|
||||||
# further. For a list of options available for each theme, see the
|
|
||||||
# documentation.
|
|
||||||
#html_theme_options = {}
|
|
||||||
|
|
||||||
# Add any paths that contain custom themes here, relative to this directory.
|
|
||||||
#html_theme_path = []
|
|
||||||
html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
|
|
||||||
|
|
||||||
# The name for this set of Sphinx documents. If None, it defaults to
|
|
||||||
# "<project> v<release> documentation".
|
|
||||||
#html_title = None
|
|
||||||
|
|
||||||
# A shorter title for the navigation bar. Default is the same as html_title.
|
|
||||||
#html_short_title = None
|
|
||||||
|
|
||||||
# The name of an image file (relative to this directory) to place at the top
|
|
||||||
# of the sidebar.
|
|
||||||
#html_logo = None
|
|
||||||
|
|
||||||
# The name of an image file (within the static path) to use as favicon of the
|
|
||||||
# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32
|
|
||||||
# pixels large.
|
|
||||||
#html_favicon = None
|
|
||||||
|
|
||||||
# Add any paths that contain custom static files (such as style sheets) here,
|
|
||||||
# relative to this directory. They are copied after the builtin static files,
|
|
||||||
# so a file named "default.css" will overwrite the builtin "default.css".
|
|
||||||
html_static_path = ['_static']
|
|
||||||
|
|
||||||
# Add any extra paths that contain custom files (such as robots.txt or
|
|
||||||
# .htaccess) here, relative to this directory. These files are copied
|
|
||||||
# directly to the root of the documentation.
|
|
||||||
#html_extra_path = []
|
|
||||||
|
|
||||||
# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
|
|
||||||
# using the given strftime format.
|
|
||||||
#html_last_updated_fmt = '%b %d, %Y'
|
|
||||||
|
|
||||||
# If true, SmartyPants will be used to convert quotes and dashes to
|
|
||||||
# typographically correct entities.
|
|
||||||
#html_use_smartypants = True
|
|
||||||
|
|
||||||
# Custom sidebar templates, maps document names to template names.
|
|
||||||
#html_sidebars = {}
|
|
||||||
|
|
||||||
# Additional templates that should be rendered to pages, maps page names to
|
|
||||||
# template names.
|
|
||||||
#html_additional_pages = {}
|
|
||||||
|
|
||||||
# If false, no module index is generated.
|
|
||||||
#html_domain_indices = True
|
|
||||||
|
|
||||||
# If false, no index is generated.
|
|
||||||
#html_use_index = True
|
|
||||||
|
|
||||||
# If true, the index is split into individual pages for each letter.
|
|
||||||
#html_split_index = False
|
|
||||||
|
|
||||||
# If true, links to the reST sources are added to the pages.
|
|
||||||
#html_show_sourcelink = True
|
|
||||||
|
|
||||||
# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
|
|
||||||
#html_show_sphinx = True
|
|
||||||
|
|
||||||
# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
|
|
||||||
#html_show_copyright = True
|
|
||||||
|
|
||||||
# If true, an OpenSearch description file will be output, and all pages will
|
|
||||||
# contain a <link> tag referring to it. The value of this option must be the
|
|
||||||
# base URL from which the finished HTML is served.
|
|
||||||
#html_use_opensearch = ''
|
|
||||||
|
|
||||||
# This is the file name suffix for HTML files (e.g. ".xhtml").
|
|
||||||
#html_file_suffix = None
|
|
||||||
|
|
||||||
# Output file base name for HTML help builder.
|
|
||||||
htmlhelp_basename = '@PACKAGE_NAME@doc'
|
|
||||||
|
|
||||||
|
|
||||||
# -- Options for LaTeX output ---------------------------------------------
|
|
||||||
|
|
||||||
latex_elements = {
|
|
||||||
# The paper size ('letterpaper' or 'a4paper').
|
|
||||||
#'papersize': 'letterpaper',
|
|
||||||
|
|
||||||
# The font size ('10pt', '11pt' or '12pt').
|
|
||||||
#'pointsize': '10pt',
|
|
||||||
|
|
||||||
# Additional stuff for the LaTeX preamble.
|
|
||||||
#'preamble': '',
|
|
||||||
}
|
|
||||||
|
|
||||||
# Grouping the document tree into LaTeX files. List of tuples
|
|
||||||
# (source start file, target name, title,
|
|
||||||
# author, documentclass [howto, manual, or own class]).
|
|
||||||
latex_documents = [
|
|
||||||
('index', '@PACKAGE_NAME@.tex', u'@PACKAGE_NAME@ Documentation',
|
|
||||||
u'K. Isom <coder@kyleisom.net>', 'manual'),
|
|
||||||
]
|
|
||||||
|
|
||||||
# The name of an image file (relative to this directory) to place at the top of
|
|
||||||
# the title page.
|
|
||||||
#latex_logo = None
|
|
||||||
|
|
||||||
# For "manual" documents, if this is true, then toplevel headings are parts,
|
|
||||||
# not chapters.
|
|
||||||
#latex_use_parts = False
|
|
||||||
|
|
||||||
# If true, show page references after internal links.
|
|
||||||
latex_show_pagerefs = True
|
|
||||||
|
|
||||||
# If true, show URL addresses after external links.
|
|
||||||
# latex_show_urls = True
|
|
||||||
|
|
||||||
# Documents to append as an appendix to all manuals.
|
|
||||||
#latex_appendices = []
|
|
||||||
|
|
||||||
# If false, no module index is generated.
|
|
||||||
#latex_domain_indices = True
|
|
||||||
|
|
||||||
|
|
||||||
# -- Options for manual page output ---------------------------------------
|
|
||||||
|
|
||||||
# One entry per manual page. List of tuples
|
|
||||||
# (source start file, name, description, authors, manual section).
|
|
||||||
man_pages = [
|
|
||||||
('index', 'package_name', u'@PACKAGE_NAME@ Documentation',
|
|
||||||
[u'K. Isom <coder@kyleisom.net>'], 1)
|
|
||||||
]
|
|
||||||
|
|
||||||
# If true, show URL addresses after external links.
|
|
||||||
man_show_urls = True
|
|
||||||
|
|
||||||
|
|
||||||
# -- Options for Texinfo output -------------------------------------------
|
|
||||||
|
|
||||||
# Grouping the document tree into Texinfo files. List of tuples
|
|
||||||
# (source start file, target name, title, author,
|
|
||||||
# dir menu entry, description, category)
|
|
||||||
texinfo_documents = [
|
|
||||||
('index', '@PACKAGE_NAME@', u'@PACKAGE_NAME@ Documentation',
|
|
||||||
u'K. Isom <coder@kyleisom.net>', '@PACKAGE_NAME@', 'HMAC-SHA-256 C++11 library designed for embedded systems.',
|
|
||||||
'Development'),
|
|
||||||
]
|
|
||||||
|
|
||||||
# Documents to append as an appendix to all manuals.
|
|
||||||
#texinfo_appendices = []
|
|
||||||
|
|
||||||
# If false, no module index is generated.
|
|
||||||
#texinfo_domain_indices = True
|
|
||||||
|
|
||||||
# How to display URL addresses: 'footnote', 'no', or 'inline'.
|
|
||||||
#texinfo_show_urls = 'footnote'
|
|
||||||
|
|
||||||
# If true, do not generate a @detailmenu in the "Top" node's menu.
|
|
||||||
#texinfo_no_detailmenu = False
|
|
||||||
|
|
||||||
|
|
||||||
# -- Options for Epub output ----------------------------------------------
|
|
||||||
|
|
||||||
# Bibliographic Dublin Core info.
|
|
||||||
epub_title = u'@PACKAGE_NAME@'
|
|
||||||
epub_author = u'K. Isom <coder@kyleisom.net>'
|
|
||||||
epub_publisher = u'K. Isom <coder@kyleisom.net>'
|
|
||||||
epub_copyright = u'2015, K. Isom <coder@kyleisom.net>'
|
|
||||||
|
|
||||||
# The basename for the epub file. It defaults to the project name.
|
|
||||||
#epub_basename = u'@PACKAGE_NAME@'
|
|
||||||
|
|
||||||
# The HTML theme for the epub output. Since the default themes are not optimized
|
|
||||||
# for small screen space, using the same theme for HTML and epub output is
|
|
||||||
# usually not wise. This defaults to 'epub', a theme designed to save visual
|
|
||||||
# space.
|
|
||||||
#epub_theme = 'epub'
|
|
||||||
|
|
||||||
# The language of the text. It defaults to the language option
|
|
||||||
# or en if the language is not set.
|
|
||||||
#epub_language = ''
|
|
||||||
|
|
||||||
# The scheme of the identifier. Typical schemes are ISBN or URL.
|
|
||||||
#epub_scheme = ''
|
|
||||||
|
|
||||||
# The unique identifier of the text. This can be a ISBN number
|
|
||||||
# or the project homepage.
|
|
||||||
#epub_identifier = ''
|
|
||||||
|
|
||||||
# A unique identification for the text.
|
|
||||||
#epub_uid = ''
|
|
||||||
|
|
||||||
# A tuple containing the cover image and cover page html template filenames.
|
|
||||||
#epub_cover = ()
|
|
||||||
|
|
||||||
# A sequence of (type, uri, title) tuples for the guide element of content.opf.
|
|
||||||
#epub_guide = ()
|
|
||||||
|
|
||||||
# HTML files that should be inserted before the pages created by sphinx.
|
|
||||||
# The format is a list of tuples containing the path and title.
|
|
||||||
#epub_pre_files = []
|
|
||||||
|
|
||||||
# HTML files shat should be inserted after the pages created by sphinx.
|
|
||||||
# The format is a list of tuples containing the path and title.
|
|
||||||
#epub_post_files = []
|
|
||||||
|
|
||||||
# A list of files that should not be packed into the epub file.
|
|
||||||
epub_exclude_files = ['search.html']
|
|
||||||
|
|
||||||
# The depth of the table of contents in toc.ncx.
|
|
||||||
#epub_tocdepth = 3
|
|
||||||
|
|
||||||
# Allow duplicate toc entries.
|
|
||||||
#epub_tocdup = True
|
|
||||||
|
|
||||||
# Choose between 'default' and 'includehidden'.
|
|
||||||
#epub_tocscope = 'default'
|
|
||||||
|
|
||||||
# Fix unsupported image types using the PIL.
|
|
||||||
#epub_fix_images = False
|
|
||||||
|
|
||||||
# Scale large images.
|
|
||||||
#epub_max_image_width = 0
|
|
||||||
|
|
||||||
# How to display URL addresses: 'footnote', 'no', or 'inline'.
|
|
||||||
#epub_show_urls = 'inline'
|
|
||||||
|
|
||||||
# If false, no index is generated.
|
|
||||||
#epub_use_index = True
|
|
||||||
|
|
@ -1,74 +0,0 @@
|
||||||
------------------
|
|
||||||
The Hash interface
|
|
||||||
------------------
|
|
||||||
|
|
||||||
.. cpp:class:: emsha::Hash
|
|
||||||
|
|
||||||
The ``Hash`` class contains a top-level interface for the objects in
|
|
||||||
this library.
|
|
||||||
|
|
||||||
In general, a `Hash` is used along the lines of: ::
|
|
||||||
|
|
||||||
emsha::EMSHA_RESULT
|
|
||||||
hash_single_pass(uint8_t *m, uint32_t ml, uint8_t *digest)
|
|
||||||
{
|
|
||||||
// Depending on the implementation, the constructor may need
|
|
||||||
// arguments.
|
|
||||||
emsha::Hash h;
|
|
||||||
emsha::EMSHA_RESULT res;
|
|
||||||
|
|
||||||
res = h.write(m, ml);
|
|
||||||
if (emsha::EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
// digest will contain the output of the Hash, and the
|
|
||||||
// caller MUST ensure that there is enough space in
|
|
||||||
// the buffer.
|
|
||||||
return h.result(d);
|
|
||||||
}
|
|
||||||
|
|
||||||
Methods
|
|
||||||
^^^^^^^
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT reset(void)
|
|
||||||
|
|
||||||
reset should bring the Hash back into its initial state. That is,
|
|
||||||
the idea is that::
|
|
||||||
|
|
||||||
hash->reset();
|
|
||||||
hash->update(...); // possibly many of these...
|
|
||||||
hash->result(...); // should always return the same hash.
|
|
||||||
|
|
||||||
is idempotent, assuming the inputs to ``update`` and ``result``
|
|
||||||
are constant. The implications of this for a given concrete class
|
|
||||||
should be described in that class's documentation, but in general,
|
|
||||||
it has the effect of preserving any initial state while removing any
|
|
||||||
data written to the Hash via the update method.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT update(const uint8_t *m, uint32_t ml)
|
|
||||||
|
|
||||||
``update`` is used to write message data into
|
|
||||||
the Hash.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT finalize(uint8_t *d)
|
|
||||||
|
|
||||||
``finalize`` should carry out any final operations on the `Hash`;
|
|
||||||
after a call to finalize, no more data can be written. Additionally,
|
|
||||||
it transfers out the resulting hash into its argument.
|
|
||||||
|
|
||||||
Note that this library does not allocate memory, and therefore the
|
|
||||||
caller *must* ensure that ``d`` is a valid buffer containing at least
|
|
||||||
``this->size()`` bytes.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT result(uint8_t *d)
|
|
||||||
|
|
||||||
``result`` is used to transfer out the hash to the argument. This implies
|
|
||||||
that the `Hash` must keep enough state for repeated calls to ``result``
|
|
||||||
to work.
|
|
||||||
|
|
||||||
.. cpp:function:: uint32_t size(void)
|
|
||||||
|
|
||||||
``size`` should return the output size of the `Hash`; this is, how large
|
|
||||||
the buffers written to by ``result`` should be.
|
|
||||||
|
|
||||||
|
|
@ -1,24 +0,0 @@
|
||||||
========
|
|
||||||
libemsha
|
|
||||||
========
|
|
||||||
|
|
||||||
Version: @PACKAGE_VERSION@
|
|
||||||
|
|
||||||
Date: @BUILD_DATE@
|
|
||||||
|
|
||||||
|
|
||||||
-----------------
|
|
||||||
Table of Contents
|
|
||||||
-----------------
|
|
||||||
|
|
||||||
+ Introduction
|
|
||||||
+ Getting and Building the Source
|
|
||||||
+ Library Overview
|
|
||||||
+ The Hash interface
|
|
||||||
+ The SHA256 class
|
|
||||||
+ The HMAC class
|
|
||||||
+ Miscellaneous functions
|
|
||||||
+ Test Programs
|
|
||||||
+ References
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -1,113 +0,0 @@
|
||||||
--------------
|
|
||||||
The HMAC class
|
|
||||||
--------------
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:class:: emsha::HMAC
|
|
||||||
|
|
||||||
HMAC is an implementation of the :cpp:class:`emsha::Hash` interface
|
|
||||||
implementing the HMAC keyed-hash message authentication code as
|
|
||||||
defined in FIPS 198-1, using SHA-256 internally.
|
|
||||||
|
|
||||||
.. cpp:function:: HMAC::HMAC(const uint8_t *key, uint32_t keylen)
|
|
||||||
|
|
||||||
An HMAC context must be initialised with a key.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: HMAc::~HMAC()
|
|
||||||
|
|
||||||
The HMAC destructor will attempt to wipe the key and reset the
|
|
||||||
underlying SHA-256 context.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT HMAC::reset(void)
|
|
||||||
|
|
||||||
reset clears the internal state of the `HMAC` context and returns
|
|
||||||
it to its initial state. It should always return ``EMSHA_ROK``.
|
|
||||||
This function will **not** wipe the key; an `HMAC` object that has
|
|
||||||
`reset` called it can be used immediately after.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT HMAC::update(const uint8_t *m, uint32_t ml)
|
|
||||||
|
|
||||||
update writes data into the context. While there is an upper limit on
|
|
||||||
the size of data that the underlying SHA-256 context can operate on,
|
|
||||||
this package is designed for small systems that will not approach
|
|
||||||
that level of data (which is on the order of 2 exabytes), so it is
|
|
||||||
not thought to be a concern.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
+ ``m``: a byte array containing the message to be written. It must
|
|
||||||
not be NULL (unless the message length is zero).
|
|
||||||
|
|
||||||
+ ``ml``: the message length, in bytes.
|
|
||||||
|
|
||||||
**Return values**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``m`` is NULL and ``ml`` is nonzero.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the `update` is called
|
|
||||||
after a call to `finalize`.
|
|
||||||
|
|
||||||
* ``SHA256_INPUT_TOO_LONG`` is returned if too much data has been
|
|
||||||
written to the context.
|
|
||||||
|
|
||||||
+ ``EMSHA_ROK`` is returned if the data was successfully added to
|
|
||||||
the HMAC context.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::finalize(uint8_t *d)
|
|
||||||
|
|
||||||
``finalize`` completes the digest. Once this method is called, the
|
|
||||||
context cannot be updated unless the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* d: a byte buffer that must be at least ``SHA256.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the HMAC context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::result(uint8_t *d)
|
|
||||||
|
|
||||||
``result`` copies the result from the HMAC context into the
|
|
||||||
buffer pointed to by ``d``, running finalize if needed. Once
|
|
||||||
called, the context cannot be updated until the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* ``d``: a byte buffer that must be at least ``HMAC.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the HMAC context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
.. cpp:function:: uint32_t SHA256::size(void)
|
|
||||||
|
|
||||||
``size`` returns the output size of HMAC, e.g. the size that the
|
|
||||||
buffers passed to ``finalize`` and ``result`` should be.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* a ``uint32_t`` representing the expected size of buffers passed
|
|
||||||
to ``result`` and ``finalize``.
|
|
||||||
|
|
||||||
|
|
@ -1,27 +0,0 @@
|
||||||
.. libemsha documentation master file, created by
|
|
||||||
sphinx-quickstart on Tue Dec 15 23:35:10 2015.
|
|
||||||
You can adapt this file completely to your liking, but it should at least
|
|
||||||
contain the root `toctree` directive.
|
|
||||||
|
|
||||||
libemsha
|
|
||||||
========
|
|
||||||
|
|
||||||
.. toctree::
|
|
||||||
:maxdepth: 2
|
|
||||||
|
|
||||||
intro
|
|
||||||
building
|
|
||||||
overview
|
|
||||||
hash
|
|
||||||
sha256
|
|
||||||
hmac
|
|
||||||
misc
|
|
||||||
tests
|
|
||||||
refs
|
|
||||||
|
|
||||||
|
|
||||||
Indices and tables
|
|
||||||
==================
|
|
||||||
|
|
||||||
* :ref:`genindex`
|
|
||||||
|
|
||||||
|
|
@ -1,21 +0,0 @@
|
||||||
-------------
|
|
||||||
Introduction
|
|
||||||
-------------
|
|
||||||
|
|
||||||
This library is an MIT-licensed compact HMAC-SHA-256 C++11 library
|
|
||||||
designed for embedded systems. It is built following the JPL `Power of
|
|
||||||
Ten <http://spinroot.com/gerard/pdf/P10.pdf>`_ rules.
|
|
||||||
|
|
||||||
This library came about as a result of a need for a standalone
|
|
||||||
SHA-256 library for an embedded system. The original goal was
|
|
||||||
to implement a wrapper around the code extracted from `RFC 6234
|
|
||||||
<https://tools.ietf.org/html/rfc6234>`_; instead a standalone
|
|
||||||
implementation was decided on.
|
|
||||||
|
|
||||||
Additional resources:
|
|
||||||
|
|
||||||
+ `Github page <https://github.com/kisom/libemsha>`_
|
|
||||||
+ `Travis CI status <https://travis-ci.org/kisom/libemsha/>`_
|
|
||||||
+ `Coverity Scan page <https://scan.coverity.com/projects/libemsha-52f2a5fd-e759-43c2-9073-cf6c2ed9abdb>`_
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -1,107 +0,0 @@
|
||||||
-----------------------
|
|
||||||
Miscellaneous functions
|
|
||||||
-----------------------
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT sha256_self_test(void)
|
|
||||||
|
|
||||||
If the library was `compiled with support for self tests
|
|
||||||
<./building.html>`_ (the default), this function will run a few self
|
|
||||||
tests on the SHA-256 functions to validate that they are working
|
|
||||||
correctly.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` if the self-test completed successfully.
|
|
||||||
|
|
||||||
* ``EMSHA_TEST_FAILURE`` if the SHA-256 functions did not produce
|
|
||||||
the expected value.
|
|
||||||
|
|
||||||
* ``EMSHA_SELFTEST_DISABLED`` if the library was built without
|
|
||||||
support for the self test.
|
|
||||||
|
|
||||||
* If an error occurs in the SHA-256 code, the resulting error code
|
|
||||||
will be returned.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT sha256_digest(const uint8_t *m, uint32_t ml, uint8_t *d)
|
|
||||||
|
|
||||||
The ``sha256_digest`` function will compute the digest on the
|
|
||||||
``ml``-byte octet string stored in ``m``, returning the result
|
|
||||||
in ``d``. This is a convenience function implemented as: ::
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
sha256_digest(const uint8_t *m, uint32_t ml, uint8_t *d)
|
|
||||||
{
|
|
||||||
SHA256 h;
|
|
||||||
EMSHA_RESULT ret;
|
|
||||||
|
|
||||||
if (EMSHA_ROK != (ret = h.update(m, ml))) {
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
return h.finalize(d);
|
|
||||||
}
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT compute_hmac(const uint8_t *k, uint32_t kl, const uint8_t *m, uint32_t ml, uint8_t *d)
|
|
||||||
|
|
||||||
The ``compute_hmac`` function computes the MAC on the ``ml``-byte
|
|
||||||
octet string stored in``m``, using the ``kl``-length key ``k``. The
|
|
||||||
result is stored in ``d``. This is a convenience function implemented
|
|
||||||
as: ::
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
compute_hmac(const uint8_t *k, uint32_t kl, const uint8_t *m, uint32_t ml,
|
|
||||||
uint8_t *d)
|
|
||||||
{
|
|
||||||
EMSHA_RESULT res;
|
|
||||||
HMAC h(k, kl);
|
|
||||||
|
|
||||||
res = h.update(m, ml);
|
|
||||||
if (EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
res = h.result(d);
|
|
||||||
if (EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
.. cpp:function:: bool hash_equal(const uint8_t *a, const uint8_t *b)
|
|
||||||
|
|
||||||
``hash_equal`` performs a constant-time comparison of the first
|
|
||||||
``emsha::SHA256_HASH_SIZE`` bytes in the two byte array arguments.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* ``a``, ``b``: byte arrays at least ``emsha::SHA256_HASH_SIZE``
|
|
||||||
bytes in length.
|
|
||||||
|
|
||||||
** Outputs**:
|
|
||||||
|
|
||||||
* true *iff* the first ``emsha::SHA256_HASH_SIZE`` bytes match in
|
|
||||||
both arrays.
|
|
||||||
|
|
||||||
* false otherwise.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: void hexstring(uint8_t *dest, uint8_t *src, uint32_t srclen)
|
|
||||||
|
|
||||||
**Note**: this function is only present if the library was
|
|
||||||
`built with support <./building.html>`_ for the hexstring functionality.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* dest: a byte array that is 2 * ``srclen``.
|
|
||||||
|
|
||||||
* src: a byte array containing the data to process.
|
|
||||||
|
|
||||||
* srclen: the size of ``src``.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
When the function returns, the hex-encoded string will be placed in
|
|
||||||
``dest``.
|
|
||||||
|
|
||||||
|
|
@ -1,46 +0,0 @@
|
||||||
----------------
|
|
||||||
Library Overview
|
|
||||||
----------------
|
|
||||||
|
|
||||||
.. cpp:namespace:: emsha
|
|
||||||
|
|
||||||
The package provides a pair of classes, :cpp:class:`SHA256` and
|
|
||||||
:cpp:class:`HMAC`, that both satisfy a common interface :cpp:class:`Hash`. All
|
|
||||||
functionality provided by this library is found under the ``emsha`` namespace.
|
|
||||||
|
|
||||||
|
|
||||||
``EMSHA_RESULT``
|
|
||||||
^^^^^^^^^^^^^^^^^
|
|
||||||
|
|
||||||
The ``EMSHA_RESULT`` enum is used to convey the result of an
|
|
||||||
operation. The possible values are:
|
|
||||||
|
|
||||||
.. cpp:enum:: _EMSHA_RESULT_ : uint8_t
|
|
||||||
|
|
||||||
::
|
|
||||||
|
|
||||||
// All operations have completed successfully so far.
|
|
||||||
EMSHA_ROK = 0,
|
|
||||||
|
|
||||||
// A self test or unit test failed.
|
|
||||||
EMSHA_TEST_FAILURE = 1,
|
|
||||||
|
|
||||||
// A null pointer was passed in as a buffer where it
|
|
||||||
// shouldn't have been.
|
|
||||||
EMSHA_NULLPTR = 2,
|
|
||||||
|
|
||||||
// The Hash is in an invalid state.
|
|
||||||
EMSHA_INVALID_STATE = 3,
|
|
||||||
|
|
||||||
// The input to SHA256::update is too large.
|
|
||||||
SHA256_INPUT_TOO_LONG = 4,
|
|
||||||
|
|
||||||
// The self tests have been disabled, but a self test
|
|
||||||
// function was called.
|
|
||||||
EMSHA_SELFTEST_DISABLED = 5
|
|
||||||
|
|
||||||
As a convenience, the following ``typedef`` is also provided.
|
|
||||||
|
|
||||||
``typedef enum _EMSHA_RESULT_`` :cpp:type:`EMSHA_RESULT`
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -1,17 +0,0 @@
|
||||||
----------
|
|
||||||
References
|
|
||||||
----------
|
|
||||||
|
|
||||||
* `FIPS 180-4, the Secure Hash Standard <http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf>`_
|
|
||||||
* `FIPS 198-1, The Keyed-Hash Message Authentication Code (HMAC) <http://csrc.nist.gov/publications/fips/fips198-1/FIPS-198-1_final.pdf>`_
|
|
||||||
* `RFC 2014, HMAC: Keyed-Hashing for Message Authentication <https://tools.ietf.org/html/rfc2104>`_
|
|
||||||
* `RFC 6234, US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF) <https://tools.ietf.org/html/rfc6234>`_\ [#f1]_
|
|
||||||
* The behaviour of this package was cross-checked using the Go 1.5.1
|
|
||||||
linux/amd64 standard library's `crypto/sha256 <https://golang.org/src/crypto/sha256/>`_
|
|
||||||
package.
|
|
||||||
|
|
||||||
.. rubric:: Footnotes
|
|
||||||
|
|
||||||
.. [#f1] This library came about after extracting the relevant C code
|
|
||||||
from RFC 6234, and needing a C++ version. It draws heavy
|
|
||||||
inspiration from that code base.
|
|
||||||
|
|
@ -1,112 +0,0 @@
|
||||||
-----------------
|
|
||||||
The SHA256 class
|
|
||||||
-----------------
|
|
||||||
|
|
||||||
.. cpp:class:: emsha::SHA256
|
|
||||||
|
|
||||||
SHA256 is an implementation of the :cpp:class:`emsha::Hash` interface
|
|
||||||
implementing the SHA-256 cryptographic hash algorithm
|
|
||||||
|
|
||||||
.. cpp:function:: SHA256::SHA256()
|
|
||||||
|
|
||||||
A SHA256 context does not need any special construction. It can be
|
|
||||||
declared and immediately start being used.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: SHA256::~SHA256()
|
|
||||||
|
|
||||||
The SHA256 destructor will clear out its internal message buffer;
|
|
||||||
all of the members are local and not resource handles, so cleanup
|
|
||||||
is minimal.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::reset(void)
|
|
||||||
|
|
||||||
reset clears the internal state of the `SHA256` context and returns
|
|
||||||
it to its initial state. It should always return ``EMSHA_ROK``.
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::update(const uint8_t *m, uint32_t ml)
|
|
||||||
|
|
||||||
update writes data into the context. While there is an upper limit
|
|
||||||
on the size of data that SHA-256 can operate on, this package is
|
|
||||||
designed for small systems that will not approach that level of
|
|
||||||
data (which is on the order of 2 exabytes), so it is not thought to
|
|
||||||
be a concern.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
+ ``m``: a byte array containing the message to be written. It must
|
|
||||||
not be NULL (unless the message length is zero).
|
|
||||||
|
|
||||||
+ ``ml``: the message length, in bytes.
|
|
||||||
|
|
||||||
**Return values**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``m`` is NULL and ``ml`` is nonzero.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the `update` is called
|
|
||||||
after a call to `finalize`.
|
|
||||||
|
|
||||||
* ``SHA256_INPUT_TOO_LONG`` is returned if too much data has been
|
|
||||||
written to the context.
|
|
||||||
|
|
||||||
+ ``EMSHA_ROK`` is returned if the data was successfully added to
|
|
||||||
the SHA-256 context.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::finalize(uint8_t *d)
|
|
||||||
|
|
||||||
``finalize`` completes the digest. Once this method is called, the
|
|
||||||
context cannot be updated unless the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* d: a byte buffer that must be at least ``SHA256.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the SHA-256 context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
|
|
||||||
.. cpp:function:: emsha::EMSHA_RESULT SHA256::result(uint8_t *d)
|
|
||||||
|
|
||||||
``result`` copies the result from the SHA-256 context into the
|
|
||||||
buffer pointed to by ``d``, running finalize if needed. Once
|
|
||||||
called, the context cannot be updated until the context is reset.
|
|
||||||
|
|
||||||
**Inputs**:
|
|
||||||
|
|
||||||
* ``d``: a byte buffer that must be at least ``SHA256.size()`` in
|
|
||||||
length.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* ``EMSHA_NULLPTR`` is returned if ``d`` is the null pointer.
|
|
||||||
|
|
||||||
* ``EMSHA_INVALID_STATE`` is returned if the SHA-256 context is in
|
|
||||||
an invalid state, such as if there were errors in previous
|
|
||||||
updates.
|
|
||||||
|
|
||||||
* ``EMSHA_ROK`` is returned if the context was successfully
|
|
||||||
finalised and the digest copied to ``d``.
|
|
||||||
|
|
||||||
.. cpp:function:: uint32_t SHA256::size(void)
|
|
||||||
|
|
||||||
``size`` returns the output size of SHA256, e.g.
|
|
||||||
the size that the buffers passed to ``finalize``
|
|
||||||
and ``result`` should be.
|
|
||||||
|
|
||||||
**Outputs**:
|
|
||||||
|
|
||||||
* a ``uint32_t`` representing the expected size of buffers passed
|
|
||||||
to ``result`` and ``finalize``.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -1,50 +0,0 @@
|
||||||
-------------
|
|
||||||
Test Programs
|
|
||||||
-------------
|
|
||||||
|
|
||||||
Running ``make check`` builds and runs the test programs. These are:
|
|
||||||
|
|
||||||
* ``emsha_core_test`` runs the core tests.
|
|
||||||
* ``emsha_sha256_test`` runs test vectors on the SHA-256 code.
|
|
||||||
* ``emsha_hmac_test`` runs test vectors on the HMAC code.
|
|
||||||
|
|
||||||
Additionally, the following test programs are built but not run. These
|
|
||||||
programs do not link with the library as the above programs do; instead,
|
|
||||||
they compile the object files in to avoid the libtool dance before the
|
|
||||||
library is installed.
|
|
||||||
|
|
||||||
* ``emsha_mem_test`` and ``emsha_static_mem_test`` are for memory
|
|
||||||
profiling (e.g., with `Valgrind <http://valgrind.org/>`_ during
|
|
||||||
development.
|
|
||||||
|
|
||||||
* ``emsha_static_sha256_test`` and ``emsha_static_hmac_test`` are used
|
|
||||||
to facilitate testing and debugging the library. These programs run
|
|
||||||
the same tests as the ``emsha_sha256_test`` and ``emsha_hmac_test``
|
|
||||||
programs.
|
|
||||||
|
|
||||||
|
|
||||||
Core Tests
|
|
||||||
^^^^^^^^^^
|
|
||||||
|
|
||||||
There are three tests run in the core tests: a hexstring test (if
|
|
||||||
`support is built in <./building.html>`_) and the constant time
|
|
||||||
check. The constant time test does not validate that the function
|
|
||||||
is constant time, only that it correctly verifies that two byte
|
|
||||||
arrays are equal.
|
|
||||||
|
|
||||||
|
|
||||||
SHA-256 Tests
|
|
||||||
^^^^^^^^^^^^^
|
|
||||||
|
|
||||||
The SHA-256 checks take a number of test vectors from the Go standard
|
|
||||||
library's SHA-256 library.
|
|
||||||
|
|
||||||
|
|
||||||
HMAC Tests
|
|
||||||
^^^^^^^^^^
|
|
||||||
|
|
||||||
The HMAC checks apply the `RFC 4231 <http://tools.ietf.org/html/rfc4231>`_
|
|
||||||
test vectors to the HMAC code.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -0,0 +1,25 @@
|
||||||
|
libemsha(3) "@PROJECT_VERSION@"
|
||||||
|
|
||||||
|
# Introduction
|
||||||
|
|
||||||
|
This library is an MIT-licensed compact HMAC-SHA-256 C++11 library
|
||||||
|
designed for embedded systems. It is built following the JPL Power of
|
||||||
|
Ten rules.
|
||||||
|
|
||||||
|
This library came about as a result of a need for a standalone SHA-256
|
||||||
|
library for an embedded system. The original goal was to implement a
|
||||||
|
wrapper around the code extracted from RFC 6234; instead a standalone
|
||||||
|
implementation was decided on.
|
||||||
|
|
||||||
|
# References
|
||||||
|
|
||||||
|
- FIPS 180-4, the Secure Hash Standard: (http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf)
|
||||||
|
- FIPS 198-1, The Keyed-Hash Message Authentication Code (HMAC): (http://csrc.nist.gov/publications/fips/fips198-1/FIPS-198-1_final.pdf)
|
||||||
|
- RFC 2014, HMAC: Keyed-Hashing for Message Authentication: (https://tools.ietf.org/html/rfc2104)
|
||||||
|
- RFC 6234, US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF): (https://tools.ietf.org/html/rfc6234)
|
||||||
|
- The Power of Ten – Rules for Developing Safety Critical Code: (http://spinroot.com/gerard/pdf/P10.pdf)
|
||||||
|
|
||||||
|
# Validation
|
||||||
|
|
||||||
|
- The behaviour of this package was cross-checked using the Go 1.5.1 linux/amd64 standard library\'s
|
||||||
|
crypto/sha256 package.
|
||||||
|
|
@ -0,0 +1,13 @@
|
||||||
|
@PROJECT_NAME@(7) "@PROJECT_VERSION@"
|
||||||
|
|
||||||
|
# NAME
|
||||||
|
|
||||||
|
# DESCRIPTION
|
||||||
|
|
||||||
|
# DATA STRUCTURES
|
||||||
|
|
||||||
|
# HEADER FILES
|
||||||
|
|
||||||
|
# NOTES
|
||||||
|
|
||||||
|
# SEE ALSO
|
||||||
|
|
@ -0,0 +1,198 @@
|
||||||
|
# libemsha
|
||||||
|
|
||||||
|
Version: 1.0.2
|
||||||
|
|
||||||
|
Date: 2016-01-28
|
||||||
|
|
||||||
|
## Table of Contents
|
||||||
|
|
||||||
|
- Introduction
|
||||||
|
- Getting and Building the Source
|
||||||
|
- Library Overview
|
||||||
|
- The Hash interface
|
||||||
|
- The SHA256 class
|
||||||
|
- The HMAC class
|
||||||
|
- Miscellaneous functions
|
||||||
|
- Test Programs
|
||||||
|
- References
|
||||||
|
|
||||||
|
## Introduction
|
||||||
|
|
||||||
|
This library is an MIT-licensed compact HMAC-SHA-256 C++11 library
|
||||||
|
designed for embedded systems. It is built following the JPL [Power of
|
||||||
|
Ten](http://spinroot.com/gerard/pdf/P10.pdf) rules.
|
||||||
|
|
||||||
|
This library came about as a result of a need for a standalone SHA-256
|
||||||
|
library for an embedded system. The original goal was to implement a
|
||||||
|
wrapper around the code extracted from [RFC
|
||||||
|
6234](https://tools.ietf.org/html/rfc6234); instead a standalone
|
||||||
|
implementation was decided on.
|
||||||
|
|
||||||
|
Additional resources:
|
||||||
|
|
||||||
|
- [Github page](https://github.com/kisom/libemsha)
|
||||||
|
- [Travis CI status](https://travis-ci.org/kisom/libemsha/)
|
||||||
|
- [Coverity Scan page](https://scan.coverity.com/projects/libemsha-52f2a5fd-e759-43c2-9073-cf6c2ed9abdb)
|
||||||
|
|
||||||
|
## Getting and Building the Source
|
||||||
|
|
||||||
|
The source code is available via
|
||||||
|
[Github](https://github.com/kisom/libemsha/); each version should be git
|
||||||
|
tagged. :
|
||||||
|
|
||||||
|
git clone https://github.com/kisom/libemsha
|
||||||
|
git clone git@github.com:kisom/libemsha
|
||||||
|
|
||||||
|
The current release is
|
||||||
|
[1.0.0](https://github.com/kisom/libemsha/archive/1.0.0.zip).
|
||||||
|
|
||||||
|
The project is built using Autotools and `make`.
|
||||||
|
|
||||||
|
When building from a git checkout, the [autobuild]{.title-ref} script
|
||||||
|
will bootstrap the project from the autotools sources (e.g. via
|
||||||
|
`autoreconf -i`), run `configurei` (by default to use clang), and
|
||||||
|
attempt to build the library and run the unit tests.
|
||||||
|
|
||||||
|
Once the autotools infrastructure has been bootstrapped, the following
|
||||||
|
should work: :
|
||||||
|
|
||||||
|
./configure && make && make check && make install
|
||||||
|
|
||||||
|
There are three flags to `configure` that might be useful:
|
||||||
|
|
||||||
|
- `--disable-hexstring` disables the provided `hexstring` function;
|
||||||
|
while this might be useful in many cases, it also adds extra size to
|
||||||
|
the code.
|
||||||
|
- `--disable-hexlut` disables the larger lookup table used by
|
||||||
|
`hexstring`, which can save around a kilobyte of program space. If
|
||||||
|
the `hexstring` function is disabled, this option has no effect.
|
||||||
|
- `--disable-selftest` disables the internal self-tests, which can
|
||||||
|
reclaim some additional program space.
|
||||||
|
|
||||||
|
## Library Overview
|
||||||
|
|
||||||
|
The package provides a pair of classes, :cpp`SHA256`{.interpreted-text
|
||||||
|
role="class"} and :cpp`HMAC`{.interpreted-text role="class"}, that both
|
||||||
|
satisfy a common interface :cpp`Hash`{.interpreted-text role="class"}.
|
||||||
|
All functionality provided by this library is found under the `emsha`
|
||||||
|
namespace.
|
||||||
|
|
||||||
|
### `EMSHA_RESULT`
|
||||||
|
|
||||||
|
The `EMSHA_RESULT` enum is used to convey the result of an operation.
|
||||||
|
The possible values are:
|
||||||
|
|
||||||
|
// All operations have completed successfully so far.
|
||||||
|
EMSHA_ROK = 0,
|
||||||
|
|
||||||
|
// A self test or unit test failed.
|
||||||
|
EMSHA_TEST_FAILURE = 1,
|
||||||
|
|
||||||
|
// A null pointer was passed in as a buffer where it
|
||||||
|
// shouldn't have been.
|
||||||
|
EMSHA_NULLPTR = 2,
|
||||||
|
|
||||||
|
// The Hash is in an invalid state.
|
||||||
|
EMSHA_INVALID_STATE = 3,
|
||||||
|
|
||||||
|
// The input to SHA256::update is too large.
|
||||||
|
SHA256_INPUT_TOO_LONG = 4,
|
||||||
|
|
||||||
|
// The self tests have been disabled, but a self test
|
||||||
|
// function was called.
|
||||||
|
EMSHA_SELFTEST_DISABLED = 5
|
||||||
|
|
||||||
|
As a convenience, the following `typedef` is also provided.
|
||||||
|
|
||||||
|
> `typedef enum _EMSHA_RESULT_` :cpp`EMSHA_RESULT`{.interpreted-text
|
||||||
|
> role="type"}
|
||||||
|
|
||||||
|
## The Hash interface
|
||||||
|
|
||||||
|
In general, a [Hash]{.title-ref} is used along the lines of: :
|
||||||
|
|
||||||
|
emsha::EMSHA_RESULT
|
||||||
|
hash_single_pass(uint8_t *m, uint32_t ml, uint8_t *digest)
|
||||||
|
{
|
||||||
|
// Depending on the implementation, the constructor may need
|
||||||
|
// arguments.
|
||||||
|
emsha::Hash h;
|
||||||
|
emsha::EMSHA_RESULT res;
|
||||||
|
|
||||||
|
res = h.write(m, ml);
|
||||||
|
if (emsha::EMSHA_ROK != res) {
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
// digest will contain the output of the Hash, and the
|
||||||
|
// caller MUST ensure that there is enough space in
|
||||||
|
// the buffer.
|
||||||
|
return h.result(d);
|
||||||
|
}
|
||||||
|
|
||||||
|
### Methods
|
||||||
|
|
||||||
|
## The SHA256 class
|
||||||
|
|
||||||
|
## The HMAC class
|
||||||
|
|
||||||
|
## Miscellaneous functions
|
||||||
|
|
||||||
|
## Test Programs
|
||||||
|
|
||||||
|
Running `make check` builds and runs the test programs. These are:
|
||||||
|
|
||||||
|
- `emsha_core_test` runs the core tests.
|
||||||
|
- `emsha_sha256_test` runs test vectors on the SHA-256 code.
|
||||||
|
- `emsha_hmac_test` runs test vectors on the HMAC code.
|
||||||
|
|
||||||
|
Additionally, the following test programs are built but not run. These
|
||||||
|
programs do not link with the library as the above programs do; instead,
|
||||||
|
they compile the object files in to avoid the libtool dance before the
|
||||||
|
library is installed.
|
||||||
|
|
||||||
|
- `emsha_mem_test` and `emsha_static_mem_test` are for memory
|
||||||
|
profiling (e.g., with [Valgrind](http://valgrind.org/) during
|
||||||
|
development.
|
||||||
|
- `emsha_static_sha256_test` and `emsha_static_hmac_test` are used to
|
||||||
|
facilitate testing and debugging the library. These programs run the
|
||||||
|
same tests as the `emsha_sha256_test` and `emsha_hmac_test`
|
||||||
|
programs.
|
||||||
|
|
||||||
|
### Core Tests
|
||||||
|
|
||||||
|
There are three tests run in the core tests: a hexstring test (if
|
||||||
|
[support is built in](./building.html)) and the constant time check. The
|
||||||
|
constant time test does not validate that the function is constant time,
|
||||||
|
only that it correctly verifies that two byte arrays are equal.
|
||||||
|
|
||||||
|
### SHA-256 Tests
|
||||||
|
|
||||||
|
The SHA-256 checks take a number of test vectors from the Go standard
|
||||||
|
library\'s SHA-256 library.
|
||||||
|
|
||||||
|
### HMAC Tests
|
||||||
|
|
||||||
|
The HMAC checks apply the [RFC 4231](http://tools.ietf.org/html/rfc4231)
|
||||||
|
test vectors to the HMAC code.
|
||||||
|
|
||||||
|
## References
|
||||||
|
|
||||||
|
- [FIPS 180-4, the Secure Hash
|
||||||
|
Standard](http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf)
|
||||||
|
- [FIPS 198-1, The Keyed-Hash Message Authentication Code
|
||||||
|
(HMAC)](http://csrc.nist.gov/publications/fips/fips198-1/FIPS-198-1_final.pdf)
|
||||||
|
- [RFC 2014, HMAC: Keyed-Hashing for Message
|
||||||
|
Authentication](https://tools.ietf.org/html/rfc2104)
|
||||||
|
- [RFC 6234, US Secure Hash Algorithms (SHA and SHA-based HMAC and
|
||||||
|
HKDF)](https://tools.ietf.org/html/rfc6234)[^1]
|
||||||
|
- The behaviour of this package was cross-checked using the Go 1.5.1
|
||||||
|
linux/amd64 standard library\'s
|
||||||
|
[crypto/sha256](https://golang.org/src/crypto/sha256/) package.
|
||||||
|
|
||||||
|
**Footnotes**
|
||||||
|
|
||||||
|
[^1]:
|
||||||
|
This library came about after extracting the relevant C code from
|
||||||
|
RFC 6234, and needing a C++ version. It draws heavy inspiration from
|
||||||
|
that code base.
|
||||||
|
|
@ -28,31 +28,23 @@
|
||||||
#include <cstring>
|
#include <cstring>
|
||||||
#include <iostream>
|
#include <iostream>
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
#include <emsha/emsha.h>
|
||||||
|
|
||||||
|
|
||||||
using std::uint8_t;
|
using std::uint8_t;
|
||||||
using std::uint32_t;
|
using std::uint32_t;
|
||||||
using std::cout;
|
|
||||||
using std::endl;
|
|
||||||
|
|
||||||
|
|
||||||
namespace emsha {
|
namespace emsha {
|
||||||
|
|
||||||
|
|
||||||
Hash::~Hash()
|
|
||||||
{
|
|
||||||
// Nothing to see here.
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
bool
|
bool
|
||||||
hash_equal(const uint8_t *a, const uint8_t *b)
|
HashEqual(const uint8_t *a, const uint8_t *b)
|
||||||
{
|
{
|
||||||
uint8_t res = 0;
|
uint8_t res = 0;
|
||||||
|
|
||||||
EMSHA_CHECK(a != NULL, false);
|
EMSHA_CHECK(a != nullptr, false);
|
||||||
EMSHA_CHECK(b != NULL, false);
|
EMSHA_CHECK(b != nullptr, false);
|
||||||
|
|
||||||
for (uint32_t i = 0; i < SHA256_HASH_SIZE; i++) {
|
for (uint32_t i = 0; i < SHA256_HASH_SIZE; i++) {
|
||||||
res += a[i] ^ b[i];
|
res += a[i] ^ b[i];
|
||||||
|
|
@ -67,7 +59,7 @@ hash_equal(const uint8_t *a, const uint8_t *b)
|
||||||
// If using a lookup table is permitted, then the faster way to do this
|
// If using a lookup table is permitted, then the faster way to do this
|
||||||
// is to use one.
|
// is to use one.
|
||||||
static void
|
static void
|
||||||
write_hex_char(uint8_t *dest, uint8_t src)
|
writeHexChar(uint8_t *dest, uint8_t src)
|
||||||
{
|
{
|
||||||
static constexpr uint8_t lut[256][3] = {
|
static constexpr uint8_t lut[256][3] = {
|
||||||
"00", "01", "02", "03", "04", "05", "06", "07",
|
"00", "01", "02", "03", "04", "05", "06", "07",
|
||||||
|
|
@ -108,13 +100,14 @@ write_hex_char(uint8_t *dest, uint8_t src)
|
||||||
*(dest + 1) = lut[src][1];
|
*(dest + 1) = lut[src][1];
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
#else // #ifndef EMSHA_NO_HEXLUT
|
#else // #ifndef EMSHA_NO_HEXLUT
|
||||||
// If the full lookup table can't be used, e.g. because MSP430-level
|
// If the full lookup table can't be used, e.g. because MSP430-level
|
||||||
// memory constraints, we'll work around this using a small (16-byte)
|
// memory constraints, we'll work around this using a small (16-byte)
|
||||||
// lookup table and some bit shifting. On platforms where even this is
|
// lookup table and some bit shifting. On platforms where even this is
|
||||||
// too much, the hexstring functionality will just be disabled.
|
// too much, the HexString functionality will just be disabled.
|
||||||
static void
|
static void
|
||||||
write_hex_char(uint8_t *dest, uint8_t src)
|
writeHexChar(uint8_t *dest, uint8_t src)
|
||||||
{
|
{
|
||||||
static constexpr uint8_t lut[] = {
|
static constexpr uint8_t lut[] = {
|
||||||
'0', '1', '2', '3', '4', '5', '6', '7',
|
'0', '1', '2', '3', '4', '5', '6', '7',
|
||||||
|
|
@ -124,23 +117,21 @@ write_hex_char(uint8_t *dest, uint8_t src)
|
||||||
*dest = lut[((src & 0xF0) >> 4)];
|
*dest = lut[((src & 0xF0) >> 4)];
|
||||||
*(dest + 1) = lut[(src & 0xF)];
|
*(dest + 1) = lut[(src & 0xF)];
|
||||||
}
|
}
|
||||||
|
|
||||||
#endif // #ifndef EMSHA_NO_HEXLUT
|
#endif // #ifndef EMSHA_NO_HEXLUT
|
||||||
|
|
||||||
|
|
||||||
void
|
void
|
||||||
hexstring(uint8_t *dest, uint8_t *src, uint32_t srclen)
|
HexString(uint8_t *dest, uint8_t *src, uint32_t srclen)
|
||||||
{
|
{
|
||||||
uint8_t *dp = dest;
|
size_t dp = 0;
|
||||||
|
|
||||||
for (uint32_t i = 0; i < srclen; i++) {
|
for (uint32_t i = 0; i < srclen; i++) {
|
||||||
write_hex_char(dp, src[i]);
|
writeHexChar(&dest[dp], src[i]);
|
||||||
dp += 2;
|
dp += 2;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
#endif // #ifndef EMSHA_NO_HEXSTRING
|
#endif // #ifndef EMSHA_NO_HEXSTRING
|
||||||
|
|
||||||
|
|
||||||
} // end of namespace emsha
|
} // end of namespace emsha
|
||||||
|
|
||||||
|
|
@ -0,0 +1,10 @@
|
||||||
|
prefix=@CMAKE_INSTALL_PREFIX@
|
||||||
|
exec_prefix=${prefix}
|
||||||
|
libdir=${prefix}/lib
|
||||||
|
includedir=${prefix}/include
|
||||||
|
|
||||||
|
Name: @PROJECT_NAME@
|
||||||
|
Description: C++11 HMAC-SHA256 library
|
||||||
|
URL: https://git.wntrmute.dev/kyle/emsha
|
||||||
|
Version: @PROJECT_VERSION@
|
||||||
|
Libs: -L${libdir} -lemsha
|
||||||
|
|
@ -0,0 +1,170 @@
|
||||||
|
///
|
||||||
|
/// \file emsha/emsha.h
|
||||||
|
/// \author K. Isom <kyle@imap.cc>
|
||||||
|
/// \date 2015-12-17
|
||||||
|
/// \brief Declares an interface for an EMbedded Secure HAshing interface.
|
||||||
|
///
|
||||||
|
/// The MIT License (MIT)
|
||||||
|
///
|
||||||
|
/// Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
||||||
|
///
|
||||||
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
/// copy of this software and associated documentation files (the "Software"),
|
||||||
|
/// to deal in the Software without restriction, including without limitation
|
||||||
|
/// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
/// and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
/// Software is furnished to do so, subject to the following conditions:
|
||||||
|
///
|
||||||
|
/// The above copyright notice and this permission notice shall be included in
|
||||||
|
/// all copies or substantial portions of the Software.
|
||||||
|
///
|
||||||
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
/// IN THE SOFTWARE.
|
||||||
|
///
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef EMSHA_EMSHA_H
|
||||||
|
#define EMSHA_EMSHA_H
|
||||||
|
|
||||||
|
|
||||||
|
#include <cstdint>
|
||||||
|
|
||||||
|
|
||||||
|
// Emsha is an EMbedded Secure HAshing interface.
|
||||||
|
namespace emsha {
|
||||||
|
|
||||||
|
|
||||||
|
/// EMSHA_CHECK is used for sanity checks in certain parts of the code.
|
||||||
|
#ifdef NDEBUG
|
||||||
|
/// EMSHA_CHECK is used for sanity checks in certain parts of
|
||||||
|
/// the code. If asserts are turned off, expand the check to an
|
||||||
|
/// if statement that will return with retval if the condition
|
||||||
|
/// isn't met.
|
||||||
|
#define EMSHA_CHECK(condition, retval) if (!(condition)) { return (retval); }
|
||||||
|
#else
|
||||||
|
/// EMSHA_CHECK is used for sanity checks in certain parts of
|
||||||
|
/// the code. If asserts are turned on, the check is expanded to
|
||||||
|
/// an assertion that the condition holds. In this case, retval
|
||||||
|
/// is not used.
|
||||||
|
#define EMSHA_CHECK(condition, retval) (assert((condition)))
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/// SHA256_HASH_SIZE is the output length of SHA-256 in bytes.
|
||||||
|
const std::uint32_t SHA256_HASH_SIZE = 32;
|
||||||
|
|
||||||
|
|
||||||
|
/// The EMSHA_RESULT type is used to indicate whether an
|
||||||
|
/// operation succeeded, and if not, what the general fault type
|
||||||
|
/// was.
|
||||||
|
typedef enum _EMSHA_RESULT_ : std::uint8_t {
|
||||||
|
/// All operations have completed successfully so far.
|
||||||
|
EMSHA_ROK = 0,
|
||||||
|
|
||||||
|
/// A self test or unit test failed.
|
||||||
|
EMSHA_TEST_FAILURE = 1,
|
||||||
|
|
||||||
|
/// A null pointer was passed in as a buffer where it shouldn't
|
||||||
|
/// have been.
|
||||||
|
EMSHA_NULLPTR = 2,
|
||||||
|
|
||||||
|
/// The Hash is in an invalid state.
|
||||||
|
EMSHA_INVALID_STATE = 3,
|
||||||
|
|
||||||
|
/// The input to SHA256::update is too large.
|
||||||
|
SHA256_INPUT_TOO_LONG = 4,
|
||||||
|
|
||||||
|
/// The self tests have been disabled, but a self-test function
|
||||||
|
/// was called.
|
||||||
|
EMSHA_SELFTEST_DISABLED = 5
|
||||||
|
} EMSHA_RESULT;
|
||||||
|
|
||||||
|
|
||||||
|
// A Hash is generalised superclass supporting concrete classes
|
||||||
|
// that produce digests of data.
|
||||||
|
class Hash {
|
||||||
|
public:
|
||||||
|
virtual ~Hash() = default;
|
||||||
|
|
||||||
|
/// Reset should bring the Hash back into its
|
||||||
|
/// initial state. That is, the idea is that
|
||||||
|
///
|
||||||
|
/// hash->reset(); hash->update(...)... ;
|
||||||
|
/// hash->result(...) ;
|
||||||
|
///
|
||||||
|
/// is idempotent, assuming the inputs to update
|
||||||
|
/// and result are constant. The implications of
|
||||||
|
/// this for a given concrete class should be
|
||||||
|
/// described in that class's documentation, but
|
||||||
|
/// in general, it has the effect of preserving
|
||||||
|
/// any initial state while removing any data
|
||||||
|
/// written to the Hash via the update method.
|
||||||
|
virtual EMSHA_RESULT Reset() = 0;
|
||||||
|
|
||||||
|
// Update is writes message data into the Hash.
|
||||||
|
virtual EMSHA_RESULT Update(const std::uint8_t *m,
|
||||||
|
std::uint32_t ml) = 0;
|
||||||
|
|
||||||
|
/// Finalise carries out any final operations
|
||||||
|
/// on the Hash; after a call to finalize, no
|
||||||
|
/// more data can be written. Additionally, it
|
||||||
|
/// transfers out the resulting hash into its
|
||||||
|
/// argument.
|
||||||
|
virtual EMSHA_RESULT Finalise(std::uint8_t *d) = 0;
|
||||||
|
|
||||||
|
/// Result transfers out the hash to the
|
||||||
|
/// argument. The Hash must keep enough state
|
||||||
|
/// for repeated calls to result to work.
|
||||||
|
virtual EMSHA_RESULT Result(std::uint8_t *d) = 0;
|
||||||
|
|
||||||
|
/// Size should return the output size of the
|
||||||
|
/// Hash; this is, how large the buffers written
|
||||||
|
/// to by result should be.
|
||||||
|
virtual std::uint32_t Size() = 0;
|
||||||
|
};
|
||||||
|
|
||||||
|
/// HashEqual provides a constant time function for comparing
|
||||||
|
/// two hashes. The caller *must* ensure that both a and b are
|
||||||
|
/// the same size. The recommended approach is to use fixed-size
|
||||||
|
/// buffers of emsha::SHA256_HASH_SIZE length:
|
||||||
|
///
|
||||||
|
/// ```c++
|
||||||
|
/// uint8_t expected[emsha::SHA256_HASH_SIZE];
|
||||||
|
/// uint8_t actual[emsha::SHA256_HASH_SIZE];
|
||||||
|
///
|
||||||
|
/// // Fill in expected and actual using the Hash operations.
|
||||||
|
///
|
||||||
|
/// if (hash_equal(expected, actual)) {
|
||||||
|
/// proceed();
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// \param a A byte buffer of size Hash::Size().
|
||||||
|
/// \param b A byte buffer of size Hash::Size().
|
||||||
|
/// \return True if both byte arrays match.
|
||||||
|
bool
|
||||||
|
HashEqual(const std::uint8_t *a, const std::uint8_t *b);
|
||||||
|
|
||||||
|
#ifndef EMSHA_NO_HEXSTRING
|
||||||
|
/// HexString writes a hex-encoded version of the src byte
|
||||||
|
/// array into dest. The caller *must* ensure that dest is
|
||||||
|
/// srclen * 2 bytes or longer.
|
||||||
|
///
|
||||||
|
///
|
||||||
|
/// \param dest The destination byte array at least (2*srclen)
|
||||||
|
/// bytes in length.
|
||||||
|
/// \param src A byte array containing the data to hexify..
|
||||||
|
/// \param srclen The size in bytes of src.
|
||||||
|
void
|
||||||
|
HexString(std::uint8_t *dest, std::uint8_t *src, std::uint32_t srclen);
|
||||||
|
#endif // EMSHA_NO_HEXSTRING
|
||||||
|
|
||||||
|
|
||||||
|
} // end of namespace emsha
|
||||||
|
|
||||||
|
|
||||||
|
#endif // EMSHA_EMSHA_H
|
||||||
|
|
@ -0,0 +1,194 @@
|
||||||
|
///
|
||||||
|
/// \file emsha/hmac.h
|
||||||
|
/// \author K. Isom <kyle@imap.cc>
|
||||||
|
/// \date 2015-12-17
|
||||||
|
/// \brief Declares an interface for HMAC tagging.
|
||||||
|
///
|
||||||
|
/// The MIT License (MIT)
|
||||||
|
///
|
||||||
|
/// Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
||||||
|
///
|
||||||
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
/// copy of this software and associated documentation files (the "Software"),
|
||||||
|
/// to deal in the Software without restriction, including without limitation
|
||||||
|
/// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
/// and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
/// Software is furnished to do so, subject to the following conditions:
|
||||||
|
///
|
||||||
|
/// The above copyright notice and this permission notice shall be included in
|
||||||
|
/// all copies or substantial portions of the Software.
|
||||||
|
///
|
||||||
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
/// IN THE SOFTWARE.
|
||||||
|
///
|
||||||
|
|
||||||
|
#ifndef EMSHA_HMAC_H
|
||||||
|
#define EMSHA_HMAC_H
|
||||||
|
|
||||||
|
|
||||||
|
#include <cstdint>
|
||||||
|
|
||||||
|
#include "emsha.h"
|
||||||
|
#include "sha256.h"
|
||||||
|
|
||||||
|
|
||||||
|
namespace emsha {
|
||||||
|
|
||||||
|
const uint32_t HMAC_KEY_LENGTH = SHA256_MB_SIZE;
|
||||||
|
|
||||||
|
/// HMAC is a keyed hash that can be used to produce an
|
||||||
|
/// authenticated hash of some data. The HMAC is built on
|
||||||
|
/// (and uses internally) the SHA-256 class; it's helpful to
|
||||||
|
/// note that faults that occur in the SHA-256 code will be
|
||||||
|
/// propagated up as the return value from many of the HMAC
|
||||||
|
/// functions.
|
||||||
|
class HMAC : Hash {
|
||||||
|
public:
|
||||||
|
/// An HMAC is constructed with a key and the
|
||||||
|
/// length of the key. This key is stored in
|
||||||
|
/// the HMAC context, and is wiped by the HMAC
|
||||||
|
/// destructor.
|
||||||
|
///
|
||||||
|
/// \param k The HMAC key.
|
||||||
|
/// \param kl THe length of the HMAC key.
|
||||||
|
HMAC(const uint8_t *k, uint32_t kl);
|
||||||
|
|
||||||
|
/// Reset clears any data written to the HMAC;
|
||||||
|
/// this is equivalent to constructing a new HMAC,
|
||||||
|
/// but it preserves the keys.
|
||||||
|
///
|
||||||
|
/// \return EMSHA_ROK is returned if the reset
|
||||||
|
/// occurred without (detected) fault.
|
||||||
|
/// If a fault occurs with the under-
|
||||||
|
/// lying SHA-256 context, the error
|
||||||
|
/// code is returned.
|
||||||
|
EMSHA_RESULT Reset() override;
|
||||||
|
|
||||||
|
/// Update writes data into the context. While
|
||||||
|
/// there is an upper limit on the size of data
|
||||||
|
/// that the underlying hash can operate on,
|
||||||
|
/// this package is designed for small systems
|
||||||
|
/// that will not approach that level of data
|
||||||
|
/// (which is on the order of 2 exabytes), so it
|
||||||
|
/// is not thought to be a concern.
|
||||||
|
///
|
||||||
|
/// \param m A byte array containing the message
|
||||||
|
/// to be written.
|
||||||
|
/// \param ml The message length, in bytes.
|
||||||
|
/// \return
|
||||||
|
/// - EMSHA_NULLPTR is returned if m is NULL and ml is
|
||||||
|
/// nonzero.
|
||||||
|
/// - EMSHA_INVALID_STATE is returned if the update
|
||||||
|
/// is called after a call to finalize.
|
||||||
|
/// - SHA256_INPUT_TOO_LONG is returned if too much
|
||||||
|
/// data has been written to the context.
|
||||||
|
/// - EMSHA_ROK is returned if the data was
|
||||||
|
/// successfully written into the HMAC context.
|
||||||
|
///
|
||||||
|
EMSHA_RESULT Update(const uint8_t *, uint32_t) override;
|
||||||
|
|
||||||
|
// Finalise completes the HMAC computation. Once this
|
||||||
|
// method is called, the context cannot be updated
|
||||||
|
// unless the context is reset.
|
||||||
|
//
|
||||||
|
// Inputs:
|
||||||
|
// d: a byte buffer that must be at least
|
||||||
|
// HMAC.size() in length.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// EMSHA_NULLPTR is returned if d is the null
|
||||||
|
// pointer.
|
||||||
|
//
|
||||||
|
// EMSHA_INVALID_STATE is returned if the HMAC
|
||||||
|
// context is in an invalid state, such as if there
|
||||||
|
// were errors in previous updates.
|
||||||
|
//
|
||||||
|
// EMSHA_ROK is returned if the context was
|
||||||
|
// successfully finalised and the digest copied to
|
||||||
|
// d.
|
||||||
|
//
|
||||||
|
EMSHA_RESULT Finalise(uint8_t *) override;
|
||||||
|
|
||||||
|
// Result copies the result from the HMAC context into
|
||||||
|
// the buffer pointed to by d, running finalize if
|
||||||
|
// needed. Once called, the context cannot be updated
|
||||||
|
// until the context is reset.
|
||||||
|
//
|
||||||
|
// Inputs:
|
||||||
|
// d: a byte buffer that must be at least
|
||||||
|
// HMAC.size() in length.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// EMSHA_NULLPTR is returned if d is the null
|
||||||
|
// pointer.
|
||||||
|
//
|
||||||
|
// EMSHA_INVALID_STATE is returned if the HMAC
|
||||||
|
// context is in an invalid state, such as if there
|
||||||
|
// were errors in previous updates.
|
||||||
|
//
|
||||||
|
// EMSHA_ROK is returned if the context was
|
||||||
|
// successfully finalised and the digest copied to
|
||||||
|
// d.
|
||||||
|
//
|
||||||
|
EMSHA_RESULT Result(uint8_t *) override;
|
||||||
|
|
||||||
|
|
||||||
|
// size returns the output size of HMAC-SHA-256, e.g.
|
||||||
|
// the size that the buffers passed to finalize and
|
||||||
|
// result should be.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// A uint32_t representing the expected size
|
||||||
|
// of buffers passed to result and finalize.
|
||||||
|
std::uint32_t Size() override;
|
||||||
|
|
||||||
|
// When an HMAC context is destroyed, it is reset and
|
||||||
|
// the key material is zeroised using the STL fill
|
||||||
|
// function.
|
||||||
|
~HMAC(void);
|
||||||
|
private:
|
||||||
|
uint8_t hstate;
|
||||||
|
SHA256 ctx;
|
||||||
|
uint8_t k[HMAC_KEY_LENGTH];
|
||||||
|
uint8_t buf[SHA256_HASH_SIZE];
|
||||||
|
|
||||||
|
EMSHA_RESULT reset();
|
||||||
|
inline EMSHA_RESULT
|
||||||
|
finalResult(uint8_t *d);
|
||||||
|
};
|
||||||
|
|
||||||
|
// compute_hmac performs a single-pass HMAC computation over
|
||||||
|
// a message.
|
||||||
|
//
|
||||||
|
// Inputs:
|
||||||
|
// k: a byte buffer containing the HMAC key.
|
||||||
|
//
|
||||||
|
// kl: the length of the HMAC key.
|
||||||
|
//
|
||||||
|
// m: the message data over which the HMAC is to be computed.
|
||||||
|
//
|
||||||
|
// ml: the length of the message.
|
||||||
|
//
|
||||||
|
// d: a byte buffer that will be used to store the resulting
|
||||||
|
// HMAC. It should be SHA256_HASH_SIZE bytes in size.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// This function handles setting up the HMAC context with
|
||||||
|
// the given key, calling update with the message data, and
|
||||||
|
// then calling finalize to place the result in the output
|
||||||
|
// buffer. Any of the faults that can occur in these functions
|
||||||
|
// can be returned here, or EMSHA_ROK if the HMAC was
|
||||||
|
// successfully computed.
|
||||||
|
EMSHA_RESULT
|
||||||
|
ComputeHMAC(const uint8_t *k, uint32_t kl,
|
||||||
|
const uint8_t *m, uint32_t ml,
|
||||||
|
uint8_t *d);
|
||||||
|
} // end of namespace emsha
|
||||||
|
|
||||||
|
|
||||||
|
#endif // EMSHA_HMAC_H
|
||||||
|
|
@ -0,0 +1,96 @@
|
||||||
|
///
|
||||||
|
/// \file emsha/internal.h
|
||||||
|
/// \author K. Isom <kyle@imap.cc>
|
||||||
|
/// \date 2015-12-17
|
||||||
|
/// \brief Declares internal interfaces for the emsha library.
|
||||||
|
///
|
||||||
|
/// The MIT License (MIT)
|
||||||
|
///
|
||||||
|
/// Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
||||||
|
///
|
||||||
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
/// copy of this software and associated documentation files (the "Software"),
|
||||||
|
/// to deal in the Software without restriction, including without limitation
|
||||||
|
/// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
/// and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
/// Software is furnished to do so, subject to the following conditions:
|
||||||
|
///
|
||||||
|
/// The above copyright notice and this permission notice shall be included in
|
||||||
|
/// all copies or substantial portions of the Software.
|
||||||
|
///
|
||||||
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
/// IN THE SOFTWARE.
|
||||||
|
///
|
||||||
|
|
||||||
|
#ifndef EMSHA_INTERNAL_H
|
||||||
|
#define EMSHA_INTERNAL_H
|
||||||
|
|
||||||
|
|
||||||
|
#include <cstdint>
|
||||||
|
|
||||||
|
using std::uint8_t;
|
||||||
|
using std::uint32_t;
|
||||||
|
|
||||||
|
|
||||||
|
namespace emsha {
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t
|
||||||
|
rotr32(uint32_t x, uint8_t n)
|
||||||
|
{
|
||||||
|
return ((x >> n) | (x << (32 - n)));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t
|
||||||
|
sha_ch(uint32_t x, uint32_t y, uint32_t z)
|
||||||
|
{
|
||||||
|
return ((x & y) ^ ((~x) & z));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t
|
||||||
|
sha_maj(uint32_t x, uint32_t y, uint32_t z)
|
||||||
|
{
|
||||||
|
return (x & y) ^ (x & z) ^ (y & z);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t
|
||||||
|
sha_Sigma0(uint32_t x)
|
||||||
|
{
|
||||||
|
return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t
|
||||||
|
sha_Sigma1(uint32_t x)
|
||||||
|
{
|
||||||
|
return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t
|
||||||
|
sha_sigma0(uint32_t x)
|
||||||
|
{
|
||||||
|
return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >> 3);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t
|
||||||
|
sha_sigma1(uint32_t x)
|
||||||
|
{
|
||||||
|
return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >> 10);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
} // end of namespace emsha
|
||||||
|
|
||||||
|
|
||||||
|
#endif // EMSHA_INTERNAL_H
|
||||||
|
|
@ -0,0 +1,218 @@
|
||||||
|
///
|
||||||
|
/// \file emsha/sha256.h
|
||||||
|
/// \author K. Isom <kyle@imap.cc>
|
||||||
|
/// \date 2015-12-17
|
||||||
|
/// \brief Declares an interface for producing SHA-256 hashes.
|
||||||
|
///
|
||||||
|
/// The MIT License (MIT)
|
||||||
|
///
|
||||||
|
/// Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
||||||
|
///
|
||||||
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
/// copy of this software and associated documentation files (the "Software"),
|
||||||
|
/// to deal in the Software without restriction, including without limitation
|
||||||
|
/// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
/// and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
/// Software is furnished to do so, subject to the following conditions:
|
||||||
|
///
|
||||||
|
/// The above copyright notice and this permission notice shall be included in
|
||||||
|
/// all copies or substantial portions of the Software.
|
||||||
|
///
|
||||||
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
/// IN THE SOFTWARE.
|
||||||
|
///
|
||||||
|
|
||||||
|
#ifndef EMSHA_SHA256_H
|
||||||
|
#define EMSHA_SHA256_H
|
||||||
|
|
||||||
|
|
||||||
|
#include <cstdint>
|
||||||
|
|
||||||
|
#include <emsha/emsha.h>
|
||||||
|
|
||||||
|
|
||||||
|
namespace emsha {
|
||||||
|
|
||||||
|
|
||||||
|
// SHA256_MB_SIZE is the size of a message block.
|
||||||
|
const uint32_t SHA256_MB_SIZE = 64;
|
||||||
|
|
||||||
|
class SHA256 : Hash {
|
||||||
|
public:
|
||||||
|
// A SHA256 context does not need any special
|
||||||
|
// construction. It can be declared and
|
||||||
|
// immediately start being used.
|
||||||
|
SHA256();
|
||||||
|
|
||||||
|
// The SHA256 destructor will clear out its internal
|
||||||
|
// message buffer; all the members are local and
|
||||||
|
// not resource handles, so cleanup is minimal.
|
||||||
|
~SHA256();
|
||||||
|
|
||||||
|
// reset clears the internal state of the SHA256
|
||||||
|
// context and returns it to its initial state.
|
||||||
|
// It should always return EMSHA_ROK.
|
||||||
|
EMSHA_RESULT Reset() override;
|
||||||
|
|
||||||
|
// update writes data into the context. While
|
||||||
|
// there is an upper limit on the size of data
|
||||||
|
// that SHA-256 can operate on, this package is
|
||||||
|
// designed for small systems that will not
|
||||||
|
// approach that level of data (which is on the
|
||||||
|
// order of 2 exabytes), so it is not thought
|
||||||
|
// to be a concern.
|
||||||
|
//
|
||||||
|
// Inputs:
|
||||||
|
// m: a byte array containing the message to
|
||||||
|
// be written. It must not be NULL (unless
|
||||||
|
// the message length is zero).
|
||||||
|
//
|
||||||
|
// ml: the message length, in bytes.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// EMSHA_NULLPTR is returned if m is NULL
|
||||||
|
// and ml is nonzero.
|
||||||
|
//
|
||||||
|
// EMSHA_INVALID_STATE is returned if the
|
||||||
|
// update is called after a call to
|
||||||
|
// finalize.
|
||||||
|
//
|
||||||
|
// SHA256_INPUT_TOO_LONG is returned if too
|
||||||
|
// much data has been written to the
|
||||||
|
// context.
|
||||||
|
//
|
||||||
|
// EMSHA_ROK is returned if the data was
|
||||||
|
// successfully added to the SHA-256
|
||||||
|
// context.
|
||||||
|
//
|
||||||
|
EMSHA_RESULT Update(const uint8_t *m, uint32_t ml) override;
|
||||||
|
|
||||||
|
// Finalise completes the digest. Once this
|
||||||
|
// method is called, the context cannot be
|
||||||
|
// updated unless the context is reset.
|
||||||
|
//
|
||||||
|
// Inputs:
|
||||||
|
// d: a byte buffer that must be at least
|
||||||
|
// SHA256.size() in length.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// EMSHA_NULLPTR is returned if d is the
|
||||||
|
// null pointer.
|
||||||
|
//
|
||||||
|
// EMSHA_INVALID_STATE is returned if the
|
||||||
|
// SHA-256 context is in an invalid state,
|
||||||
|
// such as if there were errors in previous
|
||||||
|
// updates.
|
||||||
|
//
|
||||||
|
// EMSHA_ROK is returned if the context was
|
||||||
|
// successfully finalised and the digest
|
||||||
|
// copied to d.
|
||||||
|
//
|
||||||
|
EMSHA_RESULT Finalise(uint8_t *d) override;
|
||||||
|
|
||||||
|
// result copies the result from the SHA-256
|
||||||
|
// context into the buffer pointed to by d,
|
||||||
|
// running Finalise if needed. Once called,
|
||||||
|
// the context cannot be updated until the
|
||||||
|
// context is reset.
|
||||||
|
//
|
||||||
|
// Inputs:
|
||||||
|
// d: a byte buffer that must be at least
|
||||||
|
// SHA256.size() in length.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// EMSHA_NULLPTR is returned if d is the
|
||||||
|
// null pointer.
|
||||||
|
//
|
||||||
|
// EMSHA_INVALID_STATE is returned if the
|
||||||
|
// SHA-256 context is in an invalid state,
|
||||||
|
// such as if there were errors in previous
|
||||||
|
// updates.
|
||||||
|
//
|
||||||
|
// EMSHA_ROK is returned if the context was
|
||||||
|
// successfully finalised and the digest
|
||||||
|
// copied to d.
|
||||||
|
//
|
||||||
|
EMSHA_RESULT Result(uint8_t *d) override;
|
||||||
|
|
||||||
|
// size returns the output size of SHA256, e.g.
|
||||||
|
// the size that the buffers passed to finalize
|
||||||
|
// and result should be.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// a uint32_t representing the expected size
|
||||||
|
// of buffers passed to result and finalize.
|
||||||
|
std::uint32_t Size() override;
|
||||||
|
|
||||||
|
private:
|
||||||
|
// mlen stores the current message length.
|
||||||
|
uint64_t mlen;
|
||||||
|
|
||||||
|
// The intermediate hash is 8x 32-bit blocks.
|
||||||
|
uint32_t i_hash[8];
|
||||||
|
|
||||||
|
// hStatus is the hash status, and hComplete indicates
|
||||||
|
// whether the hash has been finalised.
|
||||||
|
EMSHA_RESULT hStatus;
|
||||||
|
uint8_t hComplete;
|
||||||
|
|
||||||
|
// mb is the message block, and mbi is the message
|
||||||
|
// block index.
|
||||||
|
uint8_t mbi;
|
||||||
|
uint8_t mb[SHA256_MB_SIZE];
|
||||||
|
|
||||||
|
inline EMSHA_RESULT addLength(const uint32_t);
|
||||||
|
inline void updateMessageBlock(void);
|
||||||
|
inline void padMessage(uint8_t pc);
|
||||||
|
EMSHA_RESULT reset();
|
||||||
|
}; // end class SHA256
|
||||||
|
|
||||||
|
// sha256Digest performs a single pass hashing of the message
|
||||||
|
// passed in.
|
||||||
|
//
|
||||||
|
// Inputs:
|
||||||
|
// m: byte buffer containing the message to hash.
|
||||||
|
//
|
||||||
|
// ml: the length of m.
|
||||||
|
//
|
||||||
|
// d: byte buffer that will be used to store the resulting
|
||||||
|
// hash; it should have at least emsha::SHA256_HASH_SIZE
|
||||||
|
// bytes available.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// This function handles setting up a SHA256 context, calling
|
||||||
|
// update using the message data, and then calling finalize. Any
|
||||||
|
// of the errors that can occur in those functions can be
|
||||||
|
// returned here, or EMSHA_ROK if the digest was computed
|
||||||
|
// successfully.
|
||||||
|
//
|
||||||
|
EMSHA_RESULT
|
||||||
|
sha256Digest(const uint8_t *m, uint32_t ml, uint8_t *d);
|
||||||
|
|
||||||
|
// sha256SelfTest runs through two test cases to ensure that the
|
||||||
|
// SHA-256 functions are working correctly.
|
||||||
|
//
|
||||||
|
// Outputs:
|
||||||
|
// EMSHA_ROK is returned if the self tests pass.
|
||||||
|
//
|
||||||
|
// EMSHA_SELFTEST_DISABLED is returned if the self tests
|
||||||
|
// have been disabled (e.g., libemsha was compiled with the
|
||||||
|
// EMSHA_NO_SELFTEST #define).
|
||||||
|
//
|
||||||
|
// If a fault occurred inside the SHA-256 code, the error
|
||||||
|
// code from one of the update, finalize, result, or reset
|
||||||
|
// methods is returned.
|
||||||
|
//
|
||||||
|
// If the fault is that the output does not match the test
|
||||||
|
// vector, EMSHA_TEST_FAILURE is returned.
|
||||||
|
EMSHA_RESULT
|
||||||
|
sha256SelfTest(void);
|
||||||
|
} // end of namespace emsha
|
||||||
|
|
||||||
|
|
||||||
|
#endif // EMSHA_SHA256_H
|
||||||
|
|
@ -28,16 +28,17 @@
|
||||||
#include <cstdint>
|
#include <cstdint>
|
||||||
|
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
#include <emsha/emsha.h>
|
||||||
#include <emsha/sha256.hh>
|
#include <emsha/sha256.h>
|
||||||
#include <emsha/hmac.hh>
|
#include <emsha/hmac.h>
|
||||||
|
|
||||||
|
|
||||||
namespace emsha {
|
namespace emsha {
|
||||||
|
|
||||||
|
|
||||||
// These constants are used to keep track of the state of the HMAC.
|
// These constants are used to keep track of the state of the HMAC.
|
||||||
|
|
||||||
// HMAC is in a clean-slate state following a call to reset().
|
// HMAC is in a clean-slate state following a call to Reset().
|
||||||
constexpr uint8_t HMAC_INIT = 0;
|
constexpr uint8_t HMAC_INIT = 0;
|
||||||
|
|
||||||
// The ipad constants have been XOR'd into the key and written to the
|
// The ipad constants have been XOR'd into the key and written to the
|
||||||
|
|
@ -60,9 +61,9 @@ static constexpr uint8_t opad = 0x5c;
|
||||||
|
|
||||||
|
|
||||||
HMAC::HMAC(const uint8_t *ik, uint32_t ikl)
|
HMAC::HMAC(const uint8_t *ik, uint32_t ikl)
|
||||||
:hstate(), ctx()
|
: hstate(HMAC_INIT), k{0}, buf{0}
|
||||||
{
|
{
|
||||||
this->hstate = HMAC_INIT;
|
|
||||||
std::fill(this->k, this->k + emsha::HMAC_KEY_LENGTH, 0);
|
std::fill(this->k, this->k + emsha::HMAC_KEY_LENGTH, 0);
|
||||||
|
|
||||||
if (ikl < HMAC_KEY_LENGTH) {
|
if (ikl < HMAC_KEY_LENGTH) {
|
||||||
|
|
@ -71,9 +72,9 @@ HMAC::HMAC(const uint8_t *ik, uint32_t ikl)
|
||||||
this->k[ikl++] = 0;
|
this->k[ikl++] = 0;
|
||||||
}
|
}
|
||||||
} else if (ikl > HMAC_KEY_LENGTH) {
|
} else if (ikl > HMAC_KEY_LENGTH) {
|
||||||
this->ctx.update(ik, ikl);
|
this->ctx.Update(ik, ikl);
|
||||||
this->ctx.result(this->k);
|
this->ctx.Result(this->k);
|
||||||
this->ctx.reset();
|
this->ctx.Reset();
|
||||||
} else {
|
} else {
|
||||||
std::copy(ik, ik + ikl, this->k);
|
std::copy(ik, ik + ikl, this->k);
|
||||||
}
|
}
|
||||||
|
|
@ -92,6 +93,13 @@ HMAC::~HMAC()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
HMAC::Reset()
|
||||||
|
{
|
||||||
|
return this->reset();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
EMSHA_RESULT
|
||||||
HMAC::reset()
|
HMAC::reset()
|
||||||
{
|
{
|
||||||
|
|
@ -100,7 +108,7 @@ HMAC::reset()
|
||||||
// Following a reset, both SHA-256 contexts and result buffer should be
|
// Following a reset, both SHA-256 contexts and result buffer should be
|
||||||
// zero'd out for a clean slate. The HMAC state should be reset
|
// zero'd out for a clean slate. The HMAC state should be reset
|
||||||
// accordingly.
|
// accordingly.
|
||||||
this->ctx.reset();
|
this->ctx.Reset();
|
||||||
std::fill(this->buf, this->buf + SHA256_HASH_SIZE, 0);
|
std::fill(this->buf, this->buf + SHA256_HASH_SIZE, 0);
|
||||||
|
|
||||||
// Set up the k0 ⊕ ipad construction, and write it into the
|
// Set up the k0 ⊕ ipad construction, and write it into the
|
||||||
|
|
@ -110,7 +118,7 @@ HMAC::reset()
|
||||||
key[i] = this->k[i] ^ ipad;
|
key[i] = this->k[i] ^ ipad;
|
||||||
}
|
}
|
||||||
|
|
||||||
res = this->ctx.update(key, HMAC_KEY_LENGTH);
|
res = this->ctx.Update(key, HMAC_KEY_LENGTH);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
this->hstate = HMAC_INVALID;
|
this->hstate = HMAC_INVALID;
|
||||||
return res;
|
return res;
|
||||||
|
|
@ -125,15 +133,16 @@ HMAC::reset()
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
EMSHA_RESULT
|
||||||
HMAC::update(const uint8_t *m, uint32_t ml)
|
HMAC::Update(const uint8_t *m, uint32_t ml)
|
||||||
{
|
{
|
||||||
EMSHA_RESULT res;
|
EMSHA_RESULT res;
|
||||||
SHA256 &hctx = this->ctx;
|
SHA256 &hctx = this->ctx;
|
||||||
|
|
||||||
|
EMSHA_CHECK(m != nullptr, EMSHA_NULLPTR);
|
||||||
EMSHA_CHECK(HMAC_IPAD == this->hstate, EMSHA_INVALID_STATE);
|
EMSHA_CHECK(HMAC_IPAD == this->hstate, EMSHA_INVALID_STATE);
|
||||||
|
|
||||||
// Write the message to the SHA-256 context.
|
// Write the message to the SHA-256 context.
|
||||||
res = hctx.update(m, ml);
|
res = hctx.Update(m, ml);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
this->hstate = HMAC_INVALID;
|
this->hstate = HMAC_INVALID;
|
||||||
return res;
|
return res;
|
||||||
|
|
@ -145,7 +154,7 @@ HMAC::update(const uint8_t *m, uint32_t ml)
|
||||||
|
|
||||||
|
|
||||||
inline EMSHA_RESULT
|
inline EMSHA_RESULT
|
||||||
HMAC::final_result(uint8_t *d)
|
HMAC::finalResult(uint8_t *d)
|
||||||
{
|
{
|
||||||
if (nullptr == d) {
|
if (nullptr == d) {
|
||||||
return EMSHA_NULLPTR;
|
return EMSHA_NULLPTR;
|
||||||
|
|
@ -164,7 +173,7 @@ HMAC::final_result(uint8_t *d)
|
||||||
|
|
||||||
// Use the result buffer as an intermediate buffer to store the result
|
// Use the result buffer as an intermediate buffer to store the result
|
||||||
// of the inner hash.
|
// of the inner hash.
|
||||||
res = this->ctx.result(this->buf);
|
res = this->ctx.Result(this->buf);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
this->hstate = HMAC_INVALID;
|
this->hstate = HMAC_INVALID;
|
||||||
return EMSHA_INVALID_STATE;
|
return EMSHA_INVALID_STATE;
|
||||||
|
|
@ -173,7 +182,7 @@ HMAC::final_result(uint8_t *d)
|
||||||
|
|
||||||
// The SHA-256 context needs to be reset so that it may be
|
// The SHA-256 context needs to be reset so that it may be
|
||||||
// re-used for the outer digest.
|
// re-used for the outer digest.
|
||||||
this->ctx.reset();
|
this->ctx.Reset();
|
||||||
|
|
||||||
// Set up the k0 ⊕ opad construction, and write it into the
|
// Set up the k0 ⊕ opad construction, and write it into the
|
||||||
// SHA-256 context.
|
// SHA-256 context.
|
||||||
|
|
@ -182,7 +191,7 @@ HMAC::final_result(uint8_t *d)
|
||||||
key[i] = this->k[i] ^ opad;
|
key[i] = this->k[i] ^ opad;
|
||||||
}
|
}
|
||||||
|
|
||||||
res = this->ctx.update(key, HMAC_KEY_LENGTH);
|
res = this->ctx.Update(key, HMAC_KEY_LENGTH);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
this->hstate = HMAC_INVALID;
|
this->hstate = HMAC_INVALID;
|
||||||
return res;
|
return res;
|
||||||
|
|
@ -193,14 +202,14 @@ HMAC::final_result(uint8_t *d)
|
||||||
std::fill(key, key + HMAC_KEY_LENGTH, 0);
|
std::fill(key, key + HMAC_KEY_LENGTH, 0);
|
||||||
|
|
||||||
// Write the inner hash result into the outer hash.
|
// Write the inner hash result into the outer hash.
|
||||||
res = this->ctx.update(this->buf, SHA256_HASH_SIZE);
|
res = this->ctx.Update(this->buf, SHA256_HASH_SIZE);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
this->hstate = HMAC_INVALID;
|
this->hstate = HMAC_INVALID;
|
||||||
return res;
|
return res;
|
||||||
}
|
}
|
||||||
|
|
||||||
// Write the outer hash result into the working buffer.
|
// Write the outer hash result into the working buffer.
|
||||||
res = this->ctx.finalize(this->buf);
|
res = this->ctx.Finalise(this->buf);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
this->hstate = HMAC_INVALID;
|
this->hstate = HMAC_INVALID;
|
||||||
return res;
|
return res;
|
||||||
|
|
@ -214,32 +223,39 @@ HMAC::final_result(uint8_t *d)
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
EMSHA_RESULT
|
||||||
HMAC::finalize(uint8_t *d)
|
HMAC::Finalise(uint8_t *d)
|
||||||
{
|
{
|
||||||
return this->final_result(d);
|
return this->finalResult(d);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
EMSHA_RESULT
|
||||||
HMAC::result(uint8_t *d)
|
HMAC::Result(uint8_t *d)
|
||||||
{
|
{
|
||||||
return this->final_result(d);
|
return this->finalResult(d);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
std::uint32_t
|
||||||
|
HMAC::Size()
|
||||||
|
{
|
||||||
|
return SHA256_HASH_SIZE;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
EMSHA_RESULT
|
||||||
compute_hmac(const uint8_t *k, uint32_t kl, const uint8_t *m, uint32_t ml,
|
ComputeHMAC(const uint8_t *k, uint32_t kl, const uint8_t *m, uint32_t ml,
|
||||||
uint8_t *d)
|
uint8_t *d)
|
||||||
{
|
{
|
||||||
EMSHA_RESULT res;
|
EMSHA_RESULT res;
|
||||||
HMAC h(k, kl);
|
HMAC h(k, kl);
|
||||||
|
|
||||||
res = h.update(m, ml);
|
res = h.Update(m, ml);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
return res;
|
return res;
|
||||||
}
|
}
|
||||||
|
|
||||||
res = h.result(d);
|
res = h.Result(d);
|
||||||
if (EMSHA_ROK != res) {
|
if (EMSHA_ROK != res) {
|
||||||
return res;
|
return res;
|
||||||
}
|
}
|
||||||
|
|
@ -249,3 +265,4 @@ compute_hmac(const uint8_t *k, uint32_t kl, const uint8_t *m, uint32_t ml,
|
||||||
|
|
||||||
|
|
||||||
} // end of namespace emsha
|
} // end of namespace emsha
|
||||||
|
|
||||||
|
|
@ -0,0 +1,68 @@
|
||||||
|
#!/usr/bin/env sh
|
||||||
|
|
||||||
|
######################################################################
|
||||||
|
# @author : kyle (kyle@midgard)
|
||||||
|
# @file : check-code
|
||||||
|
# @created : Tuesday Oct 17, 2023 22:39:39 PDT
|
||||||
|
#
|
||||||
|
# @description :
|
||||||
|
######################################################################
|
||||||
|
|
||||||
|
|
||||||
|
run_clang_tidy () {
|
||||||
|
sources="${1:-*.cc}"
|
||||||
|
echo "[+] clang-tidy ${sources}"
|
||||||
|
|
||||||
|
if [ ! -e compile_commands.json ]
|
||||||
|
then
|
||||||
|
echo "[!] compile_commands.json not found" > /dev/stderr
|
||||||
|
candidate=$(find -name compile_commands.json | head)
|
||||||
|
|
||||||
|
if [ -z "${candidates}" ]
|
||||||
|
then
|
||||||
|
echo "[!] no suitable candidates found; can't proceed" > /dev/stderr
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "[+] compile_commands.json candidate: $candidate"
|
||||||
|
ln -s ${candidate} .
|
||||||
|
echo "[+] if this isn't correct, you will need to manually link it"
|
||||||
|
fi
|
||||||
|
|
||||||
|
clang-tidy ${sources}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
run_cppcheck () {
|
||||||
|
sources="${1:-*.cc}"
|
||||||
|
echo "[+] cppcheck ${sources}"
|
||||||
|
|
||||||
|
cppcheck --enable=all --suppress=unusedFunction --suppress=missingIncludeSystem -I. ${sources}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
run_trunk () {
|
||||||
|
sources="${1:-}"
|
||||||
|
echo "[+] trunk check ${sources}"
|
||||||
|
|
||||||
|
trunk check --filter clang-tidy ${sources}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
main () {
|
||||||
|
command="${1:-usage}"
|
||||||
|
shift
|
||||||
|
|
||||||
|
case ${command} in
|
||||||
|
clang-tidy) run_clang_tidy $@ ;;
|
||||||
|
cppcheck) run_cppcheck $@ ;;
|
||||||
|
trunk) run_trunk $@ ;;
|
||||||
|
*)
|
||||||
|
echo "[!] scanner ${command} isn't supported" > /dev/stderr
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
}
|
||||||
|
|
||||||
|
main $@
|
||||||
|
|
||||||
|
|
@ -0,0 +1,42 @@
|
||||||
|
#!/usr/bin/env bash
|
||||||
|
|
||||||
|
set -eu
|
||||||
|
|
||||||
|
|
||||||
|
source /etc/lsb-release
|
||||||
|
|
||||||
|
preinstall () {
|
||||||
|
echo "[+] preparing to install"
|
||||||
|
sudo apt-get update
|
||||||
|
sudo apt-get install ca-certificates gpg wget
|
||||||
|
}
|
||||||
|
|
||||||
|
do_install () {
|
||||||
|
if [ ! -f /etc/apt/sources.list.d/kitware.list ]
|
||||||
|
then
|
||||||
|
echo "[+] fetching initial keyring"
|
||||||
|
wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null
|
||||||
|
|
||||||
|
echo "[+] adding repo to sources.list.d"
|
||||||
|
echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ ${DISTRIB_CODENAME} main" | \
|
||||||
|
sudo tee /etc/apt/sources.list.d/kitware.list >/dev/null
|
||||||
|
sudo apt-get update
|
||||||
|
|
||||||
|
echo "[+] installing kitware keyring"
|
||||||
|
if [ -f "/usr/share/keyrings/kitware-archive-keyring.gpg" ]
|
||||||
|
then
|
||||||
|
sudo rm /usr/share/keyrings/kitware-archive-keyring.gpg
|
||||||
|
fi
|
||||||
|
sudo apt-get install kitware-archive-keyring
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ "${USE_CMAKE_RC}" = "YES" ]
|
||||||
|
then
|
||||||
|
echo 'deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ ${DISTRIB_RELEASE}-rc main' | \
|
||||||
|
sudo tee -a /etc/apt/sources.list.d/kitware.list >/dev/null
|
||||||
|
sudo apt-get update
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
do_install
|
||||||
|
sudo apt-get install cmake
|
||||||
|
|
@ -0,0 +1,85 @@
|
||||||
|
#!/usr/bin/env bash
|
||||||
|
|
||||||
|
#####################################################################
|
||||||
|
# This script attempts to install the appopriate build dependencies #
|
||||||
|
# for the host system. #
|
||||||
|
# #
|
||||||
|
# This is primarily developed on the latest Ubuntu LTS release and #
|
||||||
|
# MacOS; other platforms are not supported. #
|
||||||
|
#####################################################################
|
||||||
|
|
||||||
|
set -eu
|
||||||
|
|
||||||
|
AUTOMATED_MODE=${AUTOMATED_MODE:-}
|
||||||
|
|
||||||
|
install_debianesque () {
|
||||||
|
APTARGS=""
|
||||||
|
|
||||||
|
if [ ! -z "${AUTOMATED_MODE}" ]
|
||||||
|
then
|
||||||
|
APTARGS="-y"
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "[+] distribution is ${DISTRIB_ID}, choosing Debianesque install."
|
||||||
|
|
||||||
|
if [ -z "$(command -v cmake)" ]
|
||||||
|
then
|
||||||
|
./scripts/install-cmake-debian.sh
|
||||||
|
|
||||||
|
echo "[+] installing tools"
|
||||||
|
sudo apt-get $APTARGS install git cmake clang scdoc python3-pip
|
||||||
|
|
||||||
|
( cd docs/ && python3 -m pip install -r requirements.txt )
|
||||||
|
}
|
||||||
|
|
||||||
|
install_unsupported () {
|
||||||
|
echo "[+] distribution is ${DISTRIB_ID}, choosing Redhat install."
|
||||||
|
echo "[!] This distribution is unsupported." > /dev/stderr
|
||||||
|
exit 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
install_macos () {
|
||||||
|
# TODO: consider supporting macports?
|
||||||
|
echo "[+] host system is MacOS"
|
||||||
|
|
||||||
|
echo "[+] installing tools"
|
||||||
|
brew install git cmake scdoc
|
||||||
|
|
||||||
|
echo "[+] installing libraries and development headers"
|
||||||
|
# TODO: look up proper package names in homebrew
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
install_linux () {
|
||||||
|
echo "[+] host system is Linux"
|
||||||
|
[[ -f "/etc/lsb-release" ]] && source /etc/lsb-release
|
||||||
|
if [ -z "${DISTRIB_ID}" ]
|
||||||
|
then
|
||||||
|
if [ -d /etc/apt ]
|
||||||
|
then
|
||||||
|
DISTRIB_ID="apt-based"
|
||||||
|
else
|
||||||
|
DISTRIB_ID="unsupported/unknown"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
case ${DISTRIB_ID} in
|
||||||
|
Ubuntu) install_debianesque ;;
|
||||||
|
Debian) install_debianesque ;;
|
||||||
|
apt-based) install_debianesque ;;
|
||||||
|
*)
|
||||||
|
echo "[!] distribution ${DISTRIB_ID} isn't supported in this script." > /dev/null
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
case "$(uname -s)" in
|
||||||
|
Linux) install_linux ;;
|
||||||
|
Darwin) install_macos ;;
|
||||||
|
*)
|
||||||
|
echo "[!] platform $(uname -s) isn't supported in this script." > /dev/null
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -0,0 +1,493 @@
|
||||||
|
/*
|
||||||
|
* The MIT License (MIT)
|
||||||
|
*
|
||||||
|
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
* copy of this software and associated documentation files (the "Software"),
|
||||||
|
* to deal in the Software without restriction, including without limitation
|
||||||
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be included in
|
||||||
|
* all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
* IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include <cassert>
|
||||||
|
#include <cstdint>
|
||||||
|
#include <cstring>
|
||||||
|
|
||||||
|
#include <emsha/emsha.h>
|
||||||
|
#include <emsha/sha256.h>
|
||||||
|
#include <emsha/internal.h>
|
||||||
|
#include <algorithm>
|
||||||
|
#include <iostream>
|
||||||
|
|
||||||
|
|
||||||
|
namespace emsha {
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* SHA-256 constants, from FIPS 180-4 page 11.
|
||||||
|
*/
|
||||||
|
static constexpr uint32_t sha256K[64] = {
|
||||||
|
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
|
||||||
|
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
|
||||||
|
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
|
||||||
|
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
|
||||||
|
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
|
||||||
|
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
|
||||||
|
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
|
||||||
|
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
|
||||||
|
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
|
||||||
|
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
|
||||||
|
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
|
||||||
|
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
|
||||||
|
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
|
||||||
|
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
|
||||||
|
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
|
||||||
|
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* SHA-256 initialisation vector, from FIPS 180-4 page 15.
|
||||||
|
*/
|
||||||
|
static constexpr uint32_t emsha256H0[] = {
|
||||||
|
0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
|
||||||
|
0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
sha256Digest(const uint8_t *m, uint32_t ml, uint8_t *d)
|
||||||
|
{
|
||||||
|
SHA256 h;
|
||||||
|
EMSHA_RESULT ret;
|
||||||
|
|
||||||
|
if (EMSHA_ROK != (ret = h.Update(m, ml))) {
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
return h.Finalise(d);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
SHA256::SHA256()
|
||||||
|
: mlen(), hStatus(), hComplete(), mbi()
|
||||||
|
{
|
||||||
|
this->reset();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
SHA256::~SHA256()
|
||||||
|
{
|
||||||
|
memset(this->mb, 0, SHA256_MB_SIZE);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
SHA256::addLength(const uint32_t l)
|
||||||
|
{
|
||||||
|
uint32_t tmp = this->mlen + l;
|
||||||
|
|
||||||
|
if (tmp < this->mlen) {
|
||||||
|
return SHA256_INPUT_TOO_LONG;
|
||||||
|
}
|
||||||
|
|
||||||
|
this->mlen = tmp;
|
||||||
|
assert(this->mlen > 0);
|
||||||
|
|
||||||
|
return EMSHA_ROK;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
SHA256::Reset()
|
||||||
|
{
|
||||||
|
return this->reset();
|
||||||
|
}
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
SHA256::reset()
|
||||||
|
{
|
||||||
|
// The message block is set to the initial hash vector.
|
||||||
|
this->i_hash[0] = emsha256H0[0];
|
||||||
|
this->i_hash[1] = emsha256H0[1];
|
||||||
|
this->i_hash[2] = emsha256H0[2];
|
||||||
|
this->i_hash[3] = emsha256H0[3];
|
||||||
|
this->i_hash[4] = emsha256H0[4];
|
||||||
|
this->i_hash[5] = emsha256H0[5];
|
||||||
|
this->i_hash[6] = emsha256H0[6];
|
||||||
|
this->i_hash[7] = emsha256H0[7];
|
||||||
|
|
||||||
|
this->mbi = 0;
|
||||||
|
this->hStatus = EMSHA_ROK;
|
||||||
|
this->hComplete = 0;
|
||||||
|
this->mlen = 0;
|
||||||
|
memset(this->mb, 0, SHA256_MB_SIZE);
|
||||||
|
|
||||||
|
return this->hStatus;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// Read 32 bits from the byte buffer chunk as an unsigned 32-bit integer.
|
||||||
|
static uint32_t
|
||||||
|
chunkToUint32(const uint8_t *chunk)
|
||||||
|
{
|
||||||
|
return ((*chunk) << 24) |
|
||||||
|
((*(chunk + 1)) << 16) |
|
||||||
|
((*(chunk + 2)) << 8) |
|
||||||
|
(*(chunk + 3));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// Copy an unsigned 32-bit integer into the start of the byte buffer chunk.
|
||||||
|
static void
|
||||||
|
uint32ToChunk(uint32_t x, uint8_t *chunk)
|
||||||
|
{
|
||||||
|
chunk[0] = (x & 0xff000000) >> 24;
|
||||||
|
chunk[1] = (x & 0x00ff0000) >> 16;
|
||||||
|
chunk[2] = (x & 0x0000ff00) >> 8;
|
||||||
|
chunk[3] = (x & 0x000000ff);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// FIPS 180-4, page 22.
|
||||||
|
void
|
||||||
|
SHA256::updateMessageBlock()
|
||||||
|
{
|
||||||
|
uint32_t w[64];
|
||||||
|
uint32_t i = 0;
|
||||||
|
uint32_t chunk = 0;
|
||||||
|
uint32_t a = 0;
|
||||||
|
uint32_t b = 0;
|
||||||
|
uint32_t c = 0;
|
||||||
|
uint32_t d = 0;
|
||||||
|
uint32_t e = 0;
|
||||||
|
uint32_t f = 0;
|
||||||
|
uint32_t g = 0;
|
||||||
|
uint32_t h = 0;
|
||||||
|
|
||||||
|
while (i < 16) {
|
||||||
|
w[i++] = chunkToUint32(this->mb + chunk);
|
||||||
|
chunk += 4;
|
||||||
|
}
|
||||||
|
this->mbi = 0;
|
||||||
|
|
||||||
|
for (i = 16; i < 64; i++) {
|
||||||
|
w[i] = sha_sigma1(w[i - 2]) + w[i - 7] +
|
||||||
|
sha_sigma0(w[i - 15]) + w[i - 16];
|
||||||
|
}
|
||||||
|
|
||||||
|
a = this->i_hash[0];
|
||||||
|
b = this->i_hash[1];
|
||||||
|
c = this->i_hash[2];
|
||||||
|
d = this->i_hash[3];
|
||||||
|
e = this->i_hash[4];
|
||||||
|
f = this->i_hash[5];
|
||||||
|
g = this->i_hash[6];
|
||||||
|
h = this->i_hash[7];
|
||||||
|
|
||||||
|
for (i = 0; i < 64; i++) {
|
||||||
|
uint32_t t1 = 0;
|
||||||
|
uint32_t t2 = 0;
|
||||||
|
t1 = h + sha_Sigma1(e) + sha_ch(e, f, g) + sha256K[i] + w[i];
|
||||||
|
t2 = sha_Sigma0(a) + sha_maj(a, b, c);
|
||||||
|
h = g;
|
||||||
|
g = f;
|
||||||
|
f = e;
|
||||||
|
e = d + t1;
|
||||||
|
d = c;
|
||||||
|
c = b;
|
||||||
|
b = a;
|
||||||
|
a = t1 + t2;
|
||||||
|
}
|
||||||
|
|
||||||
|
this->i_hash[0] += a;
|
||||||
|
this->i_hash[1] += b;
|
||||||
|
this->i_hash[2] += c;
|
||||||
|
this->i_hash[3] += d;
|
||||||
|
this->i_hash[4] += e;
|
||||||
|
this->i_hash[5] += f;
|
||||||
|
this->i_hash[6] += g;
|
||||||
|
this->i_hash[7] += h;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
SHA256::Update(const uint8_t *m, uint32_t ml)
|
||||||
|
{
|
||||||
|
// Checking invariants:
|
||||||
|
// If the message length is zero, there's nothing to be done.
|
||||||
|
if (0 == ml) { return EMSHA_ROK; }
|
||||||
|
|
||||||
|
// The message passed in cannot be the null pointer if the
|
||||||
|
// message length is greater than 0.
|
||||||
|
if (nullptr == m) { return EMSHA_NULLPTR; }
|
||||||
|
|
||||||
|
// If the SHA256 object is in a bad state, don't proceed.
|
||||||
|
if (EMSHA_ROK != this->hStatus) { return this->hStatus; }
|
||||||
|
|
||||||
|
// If the hash has been finalised, don't proceed.
|
||||||
|
if (0 != this->hComplete) { return EMSHA_INVALID_STATE; }
|
||||||
|
// Invariants satisfied by here.
|
||||||
|
|
||||||
|
for (uint32_t i = 0; i < ml; i++) {
|
||||||
|
this->mb[this->mbi] = *(m + i);
|
||||||
|
mbi++;
|
||||||
|
|
||||||
|
if (EMSHA_ROK == this->addLength(8)) {
|
||||||
|
if (SHA256_MB_SIZE == this->mbi) {
|
||||||
|
this->updateMessageBlock();
|
||||||
|
|
||||||
|
// Assumption: following the message block
|
||||||
|
// write, the context should still be in a good
|
||||||
|
// state.
|
||||||
|
assert(EMSHA_ROK == this->hStatus);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return this->hStatus;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
inline void
|
||||||
|
SHA256::padMessage(uint8_t pc)
|
||||||
|
{
|
||||||
|
// Assumption: the context is not in a corrupted state.
|
||||||
|
assert(EMSHA_ROK == this->hStatus);
|
||||||
|
|
||||||
|
if (this->mbi < (SHA256_MB_SIZE - 8)) {
|
||||||
|
this->mb[this->mbi++] = pc;
|
||||||
|
} else {
|
||||||
|
bool pc_add = false;
|
||||||
|
|
||||||
|
if (this->mbi < SHA256_MB_SIZE - 1) {
|
||||||
|
this->mb[this->mbi++] = pc;
|
||||||
|
pc_add = true;
|
||||||
|
}
|
||||||
|
|
||||||
|
while (this->mbi < SHA256_MB_SIZE) {
|
||||||
|
this->mb[this->mbi++] = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
this->updateMessageBlock();
|
||||||
|
if (!pc_add) {
|
||||||
|
this->mb[this->mbi++] = pc;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Assumption: updating the message block has not left the
|
||||||
|
// context in a corrupted state.
|
||||||
|
assert(EMSHA_ROK == this->hStatus);
|
||||||
|
}
|
||||||
|
|
||||||
|
while (this->mbi < (SHA256_MB_SIZE - 8)) {
|
||||||
|
this->mb[this->mbi++] = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// lstart marks the starting point for the length packing.
|
||||||
|
uint32_t const lstart = SHA256_MB_SIZE - 8;
|
||||||
|
|
||||||
|
this->mb[lstart] = static_cast<uint8_t>(this->mlen >> 56);
|
||||||
|
this->mb[lstart + 1] =
|
||||||
|
static_cast<uint8_t>((this->mlen & 0x00ff000000000000L) >> 48);
|
||||||
|
this->mb[lstart + 2] =
|
||||||
|
static_cast<uint8_t>((this->mlen & 0x0000ff0000000000L) >> 40);
|
||||||
|
this->mb[lstart + 3] =
|
||||||
|
static_cast<uint8_t>((this->mlen & 0x000000ff00000000L) >> 32);
|
||||||
|
this->mb[lstart + 4] =
|
||||||
|
static_cast<uint8_t>((this->mlen & 0x00000000ff000000L) >> 24);
|
||||||
|
this->mb[lstart + 5] =
|
||||||
|
static_cast<uint8_t>((this->mlen & 0x0000000000ff0000L) >> 16);
|
||||||
|
this->mb[lstart + 6] =
|
||||||
|
static_cast<uint8_t>((this->mlen & 0x000000000000ff00L) >> 8);
|
||||||
|
this->mb[lstart + 7] =
|
||||||
|
static_cast<uint8_t>(this->mlen & 0x00000000000000ffL);
|
||||||
|
|
||||||
|
this->updateMessageBlock();
|
||||||
|
|
||||||
|
// Assumption: updating the message block has not left the context in a
|
||||||
|
// corrupted state.
|
||||||
|
assert(EMSHA_ROK == this->hStatus);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
SHA256::Finalise(uint8_t *d)
|
||||||
|
{
|
||||||
|
// Check invariants.
|
||||||
|
// The digest cannot be a null pointer; this library allocates
|
||||||
|
// no memory of its own.
|
||||||
|
if (nullptr == d) { return EMSHA_NULLPTR; }
|
||||||
|
|
||||||
|
// If the SHA256 object is in a bad state, don't proceed.
|
||||||
|
if (EMSHA_ROK != this->hStatus) { return this->hStatus; }
|
||||||
|
|
||||||
|
// If the hash has been finalised, don't proceed.
|
||||||
|
if (0 != this->hComplete) { return EMSHA_INVALID_STATE; }
|
||||||
|
// Invariants satisfied by here.
|
||||||
|
|
||||||
|
this->padMessage(0x80);
|
||||||
|
|
||||||
|
// Assumption: padding the message block has not left the context in a
|
||||||
|
// corrupted state.
|
||||||
|
assert(EMSHA_ROK == this->hStatus);
|
||||||
|
std::fill(this->mb, this->mb + SHA256_MB_SIZE, 0);
|
||||||
|
|
||||||
|
this->hComplete = 1;
|
||||||
|
this->mlen = 0;
|
||||||
|
|
||||||
|
uint32ToChunk(this->i_hash[0], d);
|
||||||
|
uint32ToChunk(this->i_hash[1], d + 4);
|
||||||
|
uint32ToChunk(this->i_hash[2], d + 8);
|
||||||
|
uint32ToChunk(this->i_hash[3], d + 12);
|
||||||
|
uint32ToChunk(this->i_hash[4], d + 16);
|
||||||
|
uint32ToChunk(this->i_hash[5], d + 20);
|
||||||
|
uint32ToChunk(this->i_hash[6], d + 24);
|
||||||
|
uint32ToChunk(this->i_hash[7], d + 28);
|
||||||
|
|
||||||
|
return EMSHA_ROK;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
SHA256::Result(uint8_t *d)
|
||||||
|
{
|
||||||
|
// Check invariants.
|
||||||
|
|
||||||
|
// The digest cannot be a null pointer; this library allocates
|
||||||
|
// no memory of its own.
|
||||||
|
if (nullptr == d) { return EMSHA_NULLPTR; }
|
||||||
|
|
||||||
|
// If the SHA256 object is in a bad state, don't proceed.
|
||||||
|
if (EMSHA_ROK != this->hStatus) { return this->hStatus; }
|
||||||
|
|
||||||
|
// Invariants satisfied by here.
|
||||||
|
|
||||||
|
if (this->hComplete == 0U) {
|
||||||
|
return this->Finalise(d);
|
||||||
|
}
|
||||||
|
|
||||||
|
uint32ToChunk(this->i_hash[0], d);
|
||||||
|
uint32ToChunk(this->i_hash[1], d + 4);
|
||||||
|
uint32ToChunk(this->i_hash[2], d + 8);
|
||||||
|
uint32ToChunk(this->i_hash[3], d + 12);
|
||||||
|
uint32ToChunk(this->i_hash[4], d + 16);
|
||||||
|
uint32ToChunk(this->i_hash[5], d + 20);
|
||||||
|
uint32ToChunk(this->i_hash[6], d + 24);
|
||||||
|
uint32ToChunk(this->i_hash[7], d + 28);
|
||||||
|
|
||||||
|
return EMSHA_ROK;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
std::uint32_t
|
||||||
|
SHA256::Size()
|
||||||
|
{
|
||||||
|
return SHA256_HASH_SIZE;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef EMSHA_NO_SELFTEST
|
||||||
|
static const uint8_t emptyVector[] = {
|
||||||
|
0xe3, 0xb0, 0xc4, 0x42,
|
||||||
|
0x98, 0xfc, 0x1c, 0x14,
|
||||||
|
0x9a, 0xfb, 0xf4, 0xc8,
|
||||||
|
0x99, 0x6f, 0xb9, 0x24,
|
||||||
|
0x27, 0xae, 0x41, 0xe4,
|
||||||
|
0x64, 0x9b, 0x93, 0x4c,
|
||||||
|
0xa4, 0x95, 0x99, 0x1b,
|
||||||
|
0x78, 0x52, 0xb8, 0x55
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
static const uint8_t helloWorld[] = {
|
||||||
|
0x09, 0xca, 0x7e, 0x4e,
|
||||||
|
0xaa, 0x6e, 0x8a, 0xe9,
|
||||||
|
0xc7, 0xd2, 0x61, 0x16,
|
||||||
|
0x71, 0x29, 0x18, 0x48,
|
||||||
|
0x83, 0x64, 0x4d, 0x07,
|
||||||
|
0xdf, 0xba, 0x7c, 0xbf,
|
||||||
|
0xbc, 0x4c, 0x8a, 0x2e,
|
||||||
|
0x08, 0x36, 0x0d, 0x5b,
|
||||||
|
};
|
||||||
|
|
||||||
|
constexpr uint32_t EMSHA_SELF_TEST_ITERS = 4;
|
||||||
|
|
||||||
|
static EMSHA_RESULT
|
||||||
|
runTest(const uint8_t *input, uint32_t input_len, const uint8_t *expected)
|
||||||
|
{
|
||||||
|
uint8_t hexString[65]{0};
|
||||||
|
uint8_t d[SHA256_HASH_SIZE]{0};
|
||||||
|
emsha::SHA256 ctx;
|
||||||
|
emsha::EMSHA_RESULT res;
|
||||||
|
|
||||||
|
res = ctx.Update(input, input_len);
|
||||||
|
if (EMSHA_ROK != res) {
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (uint32_t n = 0; n < EMSHA_SELF_TEST_ITERS; n++) {
|
||||||
|
res = ctx.Result(d);
|
||||||
|
if (EMSHA_ROK != res) {
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (uint32_t i = 0; i < SHA256_HASH_SIZE; i++) {
|
||||||
|
if (expected[i] != d[i]) {
|
||||||
|
HexString(hexString, const_cast<uint8_t *>(d), 32);
|
||||||
|
std::cerr << "[!] have: " << hexString << "\n";
|
||||||
|
HexString(hexString, const_cast<uint8_t *>(helloWorld), 32);
|
||||||
|
std::cerr << "[!] want: " << hexString << "\n";
|
||||||
|
return EMSHA_TEST_FAILURE;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return EMSHA_ROK;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EMSHA_RESULT
|
||||||
|
sha256SelfTest()
|
||||||
|
{
|
||||||
|
EMSHA_RESULT res;
|
||||||
|
|
||||||
|
res = runTest(reinterpret_cast<const uint8_t *>(""), 0, emptyVector);
|
||||||
|
if (EMSHA_ROK == res) {
|
||||||
|
res = runTest(reinterpret_cast<const uint8_t *>("hello, world"), 12, helloWorld);
|
||||||
|
if (res != EMSHA_ROK) {
|
||||||
|
std::cerr << "[!] failed on hello, world.\n";
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
std::cerr << "[!] failed on empty vector\n";
|
||||||
|
}
|
||||||
|
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#else // #ifdef EMSHA_NO_SELFTEST
|
||||||
|
EMSHA_RESULT
|
||||||
|
sha256_self_test()
|
||||||
|
{
|
||||||
|
return EMSHA_SELFTEST_DISABLED;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#endif // EMSHA_NO_SELFTEST
|
||||||
|
|
||||||
|
|
||||||
|
} // end namespace emsha
|
||||||
|
|
@ -1,85 +0,0 @@
|
||||||
AM_CPPFLAGS = -Wall -Wextra -pedantic -Wshadow -Wpointer-arith -Wcast-align
|
|
||||||
AM_CPPFLAGS += -Wwrite-strings -Wmissing-declarations -Wno-long-long -Werror
|
|
||||||
AM_CPPFLAGS += -Wunused-variable -std=c++11 -D_XOPEN_SOURCE -Os -I.
|
|
||||||
AM_CPPFLAGS += -fno-elide-constructors -Weffc++
|
|
||||||
TEST_UTILS = test_utils.hh test_utils.cc
|
|
||||||
CLOC_PSOURCES = emsha.cc sha256.cc hmac.cc internal.hh \
|
|
||||||
emsha/emsha.hh emsha/hmac.hh emsha/sha256.hh
|
|
||||||
CLOC_TSOURCES = test_emsha.cc test_hmac.cc test_mem.cc test_sha256.cc \
|
|
||||||
test_utils.cc test_utils.hh
|
|
||||||
pkgconfigdir = $(libdir)/pkgconfig
|
|
||||||
pkgconfig_DATA = libemsha-1.pc
|
|
||||||
|
|
||||||
lib_LTLIBRARIES = libemsha.la
|
|
||||||
nobase_include_HEADERS = emsha/sha256.hh emsha/hmac.hh emsha/emsha.hh
|
|
||||||
libemsha_la_SOURCES = emsha.cc sha256.cc hmac.cc internal.hh
|
|
||||||
libemsha_li_CPPFLAGS = $(AM_CPPFLAGS) -Winline
|
|
||||||
|
|
||||||
check_PROGRAMS = emsha_sha256_test emsha_hmac_test \
|
|
||||||
emsha_core_test emsha_mem_test \
|
|
||||||
emsha_static_mem_test \
|
|
||||||
emsha_static_sha_test \
|
|
||||||
emsha_static_hmac_test
|
|
||||||
check_CPPFLAGS = $(AM_CPPFLAGS) -Wnoinline
|
|
||||||
|
|
||||||
# emsha_sha256_test runs through some SHA-256 test vectors, ensuring
|
|
||||||
# that the library's behaviour is correct.
|
|
||||||
emsha_sha256_test_SOURCES = test_sha256.cc $(TEST_UTILS)
|
|
||||||
emsha_sha256_test_LDADD = libemsha.la
|
|
||||||
|
|
||||||
# emsha_hmac_test runs through a set of HMAC-SHA-256 test vectors,
|
|
||||||
# ensuring that the library's behaviour is correct.
|
|
||||||
emsha_hmac_test_SOURCES = test_hmac.cc $(TEST_UTILS)
|
|
||||||
emsha_hmac_test_LDADD = libemsha.la
|
|
||||||
|
|
||||||
# emsha_core_test validates some of the additional functions provided
|
|
||||||
# by the emsha library.
|
|
||||||
emsha_core_test_SOURCES = test_emsha.cc $(TEST_UTILS)
|
|
||||||
emsha_core_test_LDADD = libemsha.la
|
|
||||||
|
|
||||||
# emsha_mem_test is used for testing with valgrind; it aims to introduce
|
|
||||||
# no heap allocations via the test harness so that memory usage inside
|
|
||||||
# the library may be more accurately checked.
|
|
||||||
emsha_mem_test_SOURCES = test_mem.cc $(TEST_UTILS)
|
|
||||||
emsha_mem_test_LDADD = libemsha.la
|
|
||||||
|
|
||||||
emsha_static_mem_test_SOURCES = test_mem.cc emsha.cc sha256.cc hmac.cc $(TEST_UTILS)
|
|
||||||
emsha_static_mem_test_CPPFLAGS = $(AM_CPPFLAGS) -static
|
|
||||||
emsha_static_mem_test_LDFLAGS = $(AM_LDFLAGS) -static
|
|
||||||
|
|
||||||
emsha_static_sha_test_SOURCES = test_sha256.cc emsha.cc sha256.cc hmac.cc $(TEST_UTILS)
|
|
||||||
emsha_static_sha_test_CPPFLAGS = $(AM_CPPFLAGS) -static
|
|
||||||
emsha_static_sha_test_LDFLAGS = $(AM_LDFLAGS) -static
|
|
||||||
|
|
||||||
emsha_static_hmac_test_SOURCES = test_hmac.cc emsha.cc sha256.cc hmac.cc $(TEST_UTILS)
|
|
||||||
emsha_static_hmac_test_CPPFLAGS = $(AM_CPPFLAGS) -static
|
|
||||||
emsha_static_hmac_test_LDFLAGS = $(AM_LDFLAGS) -static
|
|
||||||
|
|
||||||
|
|
||||||
.PHONY: valgrind-check
|
|
||||||
valgrind-check: emsha_static_mem_test
|
|
||||||
valgrind --tool=massif -v emsha_static_mem_test ms_print
|
|
||||||
|
|
||||||
.PHONY: cloc-report
|
|
||||||
cloc-report:
|
|
||||||
@echo "=== Library Sources ==="
|
|
||||||
@cloc $(CLOC_PSOURCES)
|
|
||||||
@echo
|
|
||||||
@echo "=== Test Sources ==="
|
|
||||||
@cloc $(CLOC_TSOURCES)
|
|
||||||
|
|
||||||
.PHONY: coverity-scan
|
|
||||||
coverity-scan: clean
|
|
||||||
cov-build --dir cov-int make all check
|
|
||||||
tar czf $(PACKAGE_NAME)-$(PACKAGE_VERSION)_coverity.tar.gz cov-int
|
|
||||||
rm -rf cov-int
|
|
||||||
|
|
||||||
.PHONY: scanners clang-scanner cppcheck-scanner
|
|
||||||
scanners: clang-scanner cppcheck-scanner
|
|
||||||
clang-scanner:
|
|
||||||
clang++ $(AM_CPPFLAGS) --analyze $(CLOC_PSOURCES)
|
|
||||||
|
|
||||||
cppcheck-scanner:
|
|
||||||
cppcheck --quiet --enable=all -I ./ $(CLOC_PSOURCES)
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -1,169 +0,0 @@
|
||||||
/*
|
|
||||||
* The MIT License (MIT)
|
|
||||||
*
|
|
||||||
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* copy of this software and associated documentation files (the "Software"),
|
|
||||||
* to deal in the Software without restriction, including without limitation
|
|
||||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
||||||
* and/or sell copies of the Software, and to permit persons to whom the
|
|
||||||
* Software is furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
||||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
||||||
* IN THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
#ifndef __EMSHA_EMSHA_HH
|
|
||||||
#define __EMSHA_EMSHA_HH
|
|
||||||
|
|
||||||
|
|
||||||
#include <cstdint>
|
|
||||||
|
|
||||||
|
|
||||||
namespace emsha {
|
|
||||||
|
|
||||||
|
|
||||||
// EMSHA_CHECK is used for sanity checks in certain parts of the code.
|
|
||||||
#ifdef NDEBUG
|
|
||||||
// If asserts are turned off, expand the check to an if
|
|
||||||
// statement that will return with retval if the condition
|
|
||||||
// isn't met.
|
|
||||||
#define EMSHA_CHECK(condition, retval) if (!(condition)) { return (retval); }
|
|
||||||
#else
|
|
||||||
// If asserts are turned on, the check is expanded to an
|
|
||||||
// assertion that the condition holds. In this case, retval is
|
|
||||||
// not used.
|
|
||||||
#define EMSHA_CHECK(condition, retval) (assert((condition)))
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
// SHA256_HASH_SIZE is the output length of SHA-256 in bytes.
|
|
||||||
const std::uint32_t SHA256_HASH_SIZE = 32;
|
|
||||||
|
|
||||||
|
|
||||||
// The EMSHA_RESULT type is used to indicate whether an
|
|
||||||
// operation succeeded, and if not, what the general fault type
|
|
||||||
// was.
|
|
||||||
typedef enum _EMSHA_RESULT_: std::uint8_t {
|
|
||||||
// All operations have completed successfully so far.
|
|
||||||
EMSHA_ROK = 0,
|
|
||||||
|
|
||||||
// A self test or unit test failed.
|
|
||||||
EMSHA_TEST_FAILURE = 1,
|
|
||||||
|
|
||||||
// A null pointer was passed in as a buffer where it shouldn't
|
|
||||||
// have been.
|
|
||||||
EMSHA_NULLPTR = 2,
|
|
||||||
|
|
||||||
// The Hash is in an invalid state.
|
|
||||||
EMSHA_INVALID_STATE = 3,
|
|
||||||
|
|
||||||
// The input to SHA256::update is too large.
|
|
||||||
SHA256_INPUT_TOO_LONG = 4,
|
|
||||||
|
|
||||||
// The self tests have been disabled, but a self-test function
|
|
||||||
// was called.
|
|
||||||
EMSHA_SELFTEST_DISABLED = 5
|
|
||||||
} EMSHA_RESULT;
|
|
||||||
|
|
||||||
|
|
||||||
// A Hash is generalised superclass supporting concrete classes
|
|
||||||
// that produce digests of data.
|
|
||||||
class Hash {
|
|
||||||
public:
|
|
||||||
virtual ~Hash() =0;
|
|
||||||
|
|
||||||
// reset should bring the Hash back into its initial
|
|
||||||
// state. That is, the idea is that
|
|
||||||
//
|
|
||||||
// hash->reset(); hash->update(...)...;
|
|
||||||
// hash->result(...);
|
|
||||||
//
|
|
||||||
// is idempotent, assuming the inputs to update and
|
|
||||||
// result are constant. The implications of this for a
|
|
||||||
// given concrete class should be described in that
|
|
||||||
// class's documentation, but in general, it has the
|
|
||||||
// effect of preserving any initial state while removing
|
|
||||||
// any data written to the Hash via the update method.
|
|
||||||
virtual EMSHA_RESULT reset(void) =0;
|
|
||||||
|
|
||||||
// update is used to write message data into the Hash.
|
|
||||||
virtual EMSHA_RESULT update(const std::uint8_t *m,
|
|
||||||
std::uint32_t ml) =0;
|
|
||||||
|
|
||||||
// finalize should carry out any final operations on the
|
|
||||||
// Hash; after a call to finalize, no more data can be
|
|
||||||
// written. Additionally, it transfers out the
|
|
||||||
// resulting hash into its argument.
|
|
||||||
virtual EMSHA_RESULT finalize(std::uint8_t *d) =0;
|
|
||||||
|
|
||||||
// result is used to transfer out the hash to the
|
|
||||||
// argument. This implies that the Hash must keep enough
|
|
||||||
// state for repeated calls to result to work.
|
|
||||||
virtual EMSHA_RESULT result(std::uint8_t *d) =0;
|
|
||||||
|
|
||||||
// size should return the output size of the Hash; this
|
|
||||||
// is, how large the buffers written to by result should
|
|
||||||
// be.
|
|
||||||
virtual std::uint32_t size(void) =0;
|
|
||||||
};
|
|
||||||
|
|
||||||
// hash_equal provides a constant time function for comparing two
|
|
||||||
// hashes. The caller *must* ensure that both a and b are the same
|
|
||||||
// size. The recommended approach is to use fixed-size buffers of
|
|
||||||
// emsha::SHA256_HASH_SIZE length:
|
|
||||||
//
|
|
||||||
// uint8_t expected[emsha::SHA256_HASH_SIZE];
|
|
||||||
// uint8_t actual[emsha::SHA256_HASH_SIZE];
|
|
||||||
//
|
|
||||||
// // Fill in expected and actual using the Hash operations.
|
|
||||||
//
|
|
||||||
// if (hash_equal(expected, actual)) {
|
|
||||||
// proceed();
|
|
||||||
// }
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// a, b: byte arrays that MUST contain at least
|
|
||||||
// emsha::SHA256_HASH_SIZE bytes. Only the first
|
|
||||||
// emsha::SHA256_HASH_SIZE bytes will be compared.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// true iff both byte arrays match
|
|
||||||
//
|
|
||||||
// false if the arrays do not match
|
|
||||||
//
|
|
||||||
bool hash_equal(const std::uint8_t *a, const std::uint8_t *b);
|
|
||||||
|
|
||||||
#ifndef EMSHA_NO_HEXSTRING
|
|
||||||
// hexstring writes a hex-encoded version of the src byte
|
|
||||||
// array into dest. The caller *must* ensure that dest is
|
|
||||||
// srclen * 2 bytes or longer.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
//
|
|
||||||
// dest: a byte array that is 2 * srclen.
|
|
||||||
//
|
|
||||||
// src: a byte array containing the data to process.
|
|
||||||
//
|
|
||||||
// srclen: the size of src.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
//
|
|
||||||
// The hex-encoded string will be placed into dest.
|
|
||||||
//
|
|
||||||
void hexstring(std::uint8_t *dest, std::uint8_t *src, std::uint32_t srclen);
|
|
||||||
#endif // EMSHA_NO_HEXSTRING
|
|
||||||
} // end of namespace emsha
|
|
||||||
|
|
||||||
|
|
||||||
#endif // __EMSHA_EMSHA_HH
|
|
||||||
|
|
@ -1,197 +0,0 @@
|
||||||
/*
|
|
||||||
* The MIT License (MIT)
|
|
||||||
*
|
|
||||||
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* copy of this software and associated documentation files (the "Software"),
|
|
||||||
* to deal in the Software without restriction, including without limitation
|
|
||||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
||||||
* and/or sell copies of the Software, and to permit persons to whom the
|
|
||||||
* Software is furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
||||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
||||||
* IN THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
#ifndef __EMSHA_HMAC_HH
|
|
||||||
#define __EMSHA_HMAC_HH
|
|
||||||
|
|
||||||
|
|
||||||
#include <cstdint>
|
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
|
||||||
#include <emsha/sha256.hh>
|
|
||||||
|
|
||||||
|
|
||||||
namespace emsha {
|
|
||||||
|
|
||||||
const uint32_t HMAC_KEY_LENGTH = SHA256_MB_SIZE;
|
|
||||||
|
|
||||||
// HMAC is a keyed hash that can be used to produce an
|
|
||||||
// authenticated hash of some data. The HMAC is built on (and
|
|
||||||
// uses internally) the SHA-256 class; it's helpful to note that
|
|
||||||
// faults that occur in the SHA-256 code will be propagated up
|
|
||||||
// as the return value from many of the HMAC functions.
|
|
||||||
class HMAC : Hash {
|
|
||||||
public:
|
|
||||||
// An HMAC is constructed with a key and the
|
|
||||||
// length of the key. This key is stored in
|
|
||||||
// the HMAC context, and is wiped by the HMAC
|
|
||||||
// destructor.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// k: the HMAC key.
|
|
||||||
// kl: the length of the HMAC key.
|
|
||||||
//
|
|
||||||
HMAC(const uint8_t *k, uint32_t kl);
|
|
||||||
|
|
||||||
// reset clears any data written to the HMAC;
|
|
||||||
// this is equivalent to constructing a new HMAC,
|
|
||||||
// but it preserves the keys.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_ROK is returned if the reset occurred
|
|
||||||
// without (detected) fault.
|
|
||||||
//
|
|
||||||
// If a fault occurs with the underlying SHA-256
|
|
||||||
// context, the error code is returned.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT reset(void);
|
|
||||||
|
|
||||||
// update writes data into the context. While there is
|
|
||||||
// an upper limit on the size of data that the
|
|
||||||
// underlying hash can operate on, this package is
|
|
||||||
// designed for small systems that will not approach
|
|
||||||
// that level of data (which is on the order of 2
|
|
||||||
// exabytes), so it is not thought to be a concern.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// m: a byte array containing the message to be
|
|
||||||
// written. It must not be NULL (unless the message
|
|
||||||
// length is zero).
|
|
||||||
//
|
|
||||||
// ml: the message length, in bytes.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_NULLPTR is returned if m is NULL and ml is
|
|
||||||
// nonzero.
|
|
||||||
//
|
|
||||||
// EMSHA_INVALID_STATE is returned if the update
|
|
||||||
// is called after a call to finalize.
|
|
||||||
//
|
|
||||||
// SHA256_INPUT_TOO_LONG is returned if too much
|
|
||||||
// data has been written to the context.
|
|
||||||
//
|
|
||||||
// EMSHA_ROK is returned if the data was
|
|
||||||
// successfully written into the HMAC context.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT update(const uint8_t *, uint32_t);
|
|
||||||
|
|
||||||
// finalize completes the HMAC computation. Once this
|
|
||||||
// method is called, the context cannot be updated
|
|
||||||
// unless the context is reset.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// d: a byte buffer that must be at least
|
|
||||||
// HMAC.size() in length.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_NULLPTR is returned if d is the null
|
|
||||||
// pointer.
|
|
||||||
//
|
|
||||||
// EMSHA_INVALID_STATE is returned if the HMAC
|
|
||||||
// context is in an invalid state, such as if there
|
|
||||||
// were errors in previous updates.
|
|
||||||
//
|
|
||||||
// EMSHA_ROK is returned if the context was
|
|
||||||
// successfully finalised and the digest copied to
|
|
||||||
// d.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT finalize(uint8_t *);
|
|
||||||
|
|
||||||
// result copies the result from the HMAC context into
|
|
||||||
// the buffer pointed to by d, running finalize if
|
|
||||||
// needed. Once called, the context cannot be updated
|
|
||||||
// until the context is reset.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// d: a byte buffer that must be at least
|
|
||||||
// HMAC.size() in length.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_NULLPTR is returned if d is the null
|
|
||||||
// pointer.
|
|
||||||
//
|
|
||||||
// EMSHA_INVALID_STATE is returned if the HMAC
|
|
||||||
// context is in an invalid state, such as if there
|
|
||||||
// were errors in previous updates.
|
|
||||||
//
|
|
||||||
// EMSHA_ROK is returned if the context was
|
|
||||||
// successfully finalised and the digest copied to
|
|
||||||
// d.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT result(uint8_t *);
|
|
||||||
|
|
||||||
|
|
||||||
// size returns the output size of HMAC-SHA-256, e.g.
|
|
||||||
// the size that the buffers passed to finalize and
|
|
||||||
// result should be.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// A uint32_t representing the expected size
|
|
||||||
// of buffers passed to result and finalize.
|
|
||||||
uint32_t size(void) { return SHA256_HASH_SIZE; }
|
|
||||||
|
|
||||||
// When an HMAC context is destroyed, it is reset and
|
|
||||||
// the key material is zeroised using the STL fill
|
|
||||||
// function.
|
|
||||||
~HMAC(void);
|
|
||||||
private:
|
|
||||||
uint8_t hstate;
|
|
||||||
SHA256 ctx;
|
|
||||||
uint8_t k[HMAC_KEY_LENGTH];
|
|
||||||
uint8_t buf[SHA256_HASH_SIZE];
|
|
||||||
|
|
||||||
inline EMSHA_RESULT
|
|
||||||
final_result(uint8_t *);
|
|
||||||
};
|
|
||||||
|
|
||||||
// compute_hmac performs a single-pass HMAC computation over
|
|
||||||
// a message.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// k: a byte buffer containing the HMAC key.
|
|
||||||
//
|
|
||||||
// kl: the length of the HMAC key.
|
|
||||||
//
|
|
||||||
// m: the message data over which the HMAC is to be computed.
|
|
||||||
//
|
|
||||||
// ml: the length of the message.
|
|
||||||
//
|
|
||||||
// d: a byte buffer that will be used to store the resulting
|
|
||||||
// HMAC. It should be SHA256_HASH_SIZE bytes in size.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// This function handles setting up the HMAC context with
|
|
||||||
// the given key, calling update with the message data, and
|
|
||||||
// then calling finalize to place the result in the output
|
|
||||||
// buffer. Any of the faults that can occur in these functions
|
|
||||||
// can be returned here, or EMSHA_ROK if the HMAC was
|
|
||||||
// successfully computed.
|
|
||||||
EMSHA_RESULT compute_hmac(const uint8_t *k, uint32_t kl,
|
|
||||||
const uint8_t *m, uint32_t ml,
|
|
||||||
uint8_t *d);
|
|
||||||
} // end of namespace emsha
|
|
||||||
|
|
||||||
|
|
||||||
#endif // __EMSHA_HMAC_HH
|
|
||||||
|
|
@ -1,211 +0,0 @@
|
||||||
/*
|
|
||||||
* The MIT License (MIT)
|
|
||||||
*
|
|
||||||
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* copy of this software and associated documentation files (the "Software"),
|
|
||||||
* to deal in the Software without restriction, including without limitation
|
|
||||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
||||||
* and/or sell copies of the Software, and to permit persons to whom the
|
|
||||||
* Software is furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
||||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
||||||
* IN THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
#ifndef __EMSHA_SHA256_HH
|
|
||||||
#define __EMSHA_SHA256_HH
|
|
||||||
|
|
||||||
|
|
||||||
#include <cstdint>
|
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
|
||||||
|
|
||||||
|
|
||||||
namespace emsha {
|
|
||||||
|
|
||||||
|
|
||||||
// SHA256_MB_SIZE is the size of a message block.
|
|
||||||
const uint32_t SHA256_MB_SIZE = 64;
|
|
||||||
|
|
||||||
class SHA256 : Hash {
|
|
||||||
public:
|
|
||||||
// A SHA256 context does not need any special
|
|
||||||
// construction. It can be declared and
|
|
||||||
// immediately start being used.
|
|
||||||
SHA256();
|
|
||||||
|
|
||||||
// The SHA256 destructor will clear out its internal
|
|
||||||
// message buffer; all of the members are local
|
|
||||||
// and not resource handles, so cleanup is minimal.
|
|
||||||
~SHA256();
|
|
||||||
|
|
||||||
// reset clears the internal state of the SHA256
|
|
||||||
// context and returns it to its initial state.
|
|
||||||
// It should always return EMSHA_ROK.
|
|
||||||
EMSHA_RESULT reset(void);
|
|
||||||
|
|
||||||
// update writes data into the context. While
|
|
||||||
// there is an upper limit on the size of data
|
|
||||||
// that SHA-256 can operate on, this package is
|
|
||||||
// designed for small systems that will not
|
|
||||||
// approach that level of data (which is on the
|
|
||||||
// order of 2 exabytes), so it is not thought
|
|
||||||
// to be a concern.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// m: a byte array containing the message to
|
|
||||||
// be written. It must not be NULL (unless
|
|
||||||
// the message length is zero).
|
|
||||||
//
|
|
||||||
// ml: the message length, in bytes.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_NULLPTR is returned if m is NULL
|
|
||||||
// and ml is nonzero.
|
|
||||||
//
|
|
||||||
// EMSHA_INVALID_STATE is returned if the
|
|
||||||
// update is called after a call to
|
|
||||||
// finalize.
|
|
||||||
//
|
|
||||||
// SHA256_INPUT_TOO_LONG is returned if too
|
|
||||||
// much data has been written to the
|
|
||||||
// context.
|
|
||||||
//
|
|
||||||
// EMSHA_ROK is returned if the data was
|
|
||||||
// successfully added to the SHA-256
|
|
||||||
// context.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT update(const uint8_t *m, uint32_t ml);
|
|
||||||
|
|
||||||
// finalize completes the digest. Once this
|
|
||||||
// method is called, the context cannot be
|
|
||||||
// updated unless the context is reset.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// d: a byte buffer that must be at least
|
|
||||||
// SHA256.size() in length.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_NULLPTR is returned if d is the
|
|
||||||
// null pointer.
|
|
||||||
//
|
|
||||||
// EMSHA_INVALID_STATE is returned if the
|
|
||||||
// SHA-256 context is in an invalid state,
|
|
||||||
// such as if there were errors in previous
|
|
||||||
// updates.
|
|
||||||
//
|
|
||||||
// EMSHA_ROK is returned if the context was
|
|
||||||
// successfully finalised and the digest
|
|
||||||
// copied to d.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT finalize(uint8_t *d);
|
|
||||||
|
|
||||||
// result copies the result from the SHA-256
|
|
||||||
// context into the buffer pointed to by d,
|
|
||||||
// running finalize if needed. Once called,
|
|
||||||
// the context cannot be updated until the
|
|
||||||
// context is reset.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// d: a byte buffer that must be at least
|
|
||||||
// SHA256.size() in length.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_NULLPTR is returned if d is the
|
|
||||||
// null pointer.
|
|
||||||
//
|
|
||||||
// EMSHA_INVALID_STATE is returned if the
|
|
||||||
// SHA-256 context is in an invalid state,
|
|
||||||
// such as if there were errors in previous
|
|
||||||
// updates.
|
|
||||||
//
|
|
||||||
// EMSHA_ROK is returned if the context was
|
|
||||||
// successfully finalised and the digest
|
|
||||||
// copied to d.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT result(uint8_t *d);
|
|
||||||
|
|
||||||
// size returns the output size of SHA256, e.g.
|
|
||||||
// the size that the buffers passed to finalize
|
|
||||||
// and result should be.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// a uint32_t representing the expected size
|
|
||||||
// of buffers passed to result and finalize.
|
|
||||||
uint32_t size(void) { return SHA256_HASH_SIZE; }
|
|
||||||
private:
|
|
||||||
// mlen stores the current message length.
|
|
||||||
uint64_t mlen;
|
|
||||||
|
|
||||||
// The intermediate hash is 8x 32-bit blocks.
|
|
||||||
uint32_t i_hash[8];
|
|
||||||
|
|
||||||
// hstatus is the hash status, and hcomplete indicates
|
|
||||||
// whether the hash has been finalised.
|
|
||||||
EMSHA_RESULT hstatus;
|
|
||||||
uint8_t hcomplete;
|
|
||||||
|
|
||||||
// mb is the message block, and mbi is the message
|
|
||||||
// block index.
|
|
||||||
uint8_t mbi;
|
|
||||||
uint8_t mb[SHA256_MB_SIZE];
|
|
||||||
|
|
||||||
inline EMSHA_RESULT add_length(uint32_t);
|
|
||||||
inline void update_message_block(void);
|
|
||||||
inline void pad_message(uint8_t);
|
|
||||||
}; // end class SHA256
|
|
||||||
|
|
||||||
// sha256_digest performs a single pass hashing of the message
|
|
||||||
// passed in.
|
|
||||||
//
|
|
||||||
// Inputs:
|
|
||||||
// m: byte buffer containing the message to hash.
|
|
||||||
//
|
|
||||||
// ml: the length of m.
|
|
||||||
//
|
|
||||||
// d: byte buffer that will be used to store the resulting
|
|
||||||
// hash; it should have at least emsha::SHA256_HASH_SIZE
|
|
||||||
// bytes available.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// This function handles setting up a SHA256 context, calling
|
|
||||||
// update using the message data, and then calling finalize. Any
|
|
||||||
// of the errors that can occur in those functions can be
|
|
||||||
// returned here, or EMSHA_ROK if the digest was computed
|
|
||||||
// successfully.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT sha256_digest(const uint8_t *m, uint32_t ml, uint8_t *d);
|
|
||||||
|
|
||||||
// sha256_self_test runs through two test cases to ensure that the
|
|
||||||
// SHA-256 functions are working correctly.
|
|
||||||
//
|
|
||||||
// Outputs:
|
|
||||||
// EMSHA_ROK is returned if the self tests pass.
|
|
||||||
//
|
|
||||||
// EMSHA_SELFTEST_DISABLED is returned if the self tests
|
|
||||||
// have been disabled (e.g., libemsha was compiled with the
|
|
||||||
// EMSHA_NO_SELFTEST #define).
|
|
||||||
//
|
|
||||||
// If a fault occurred inside the SHA-256 code, the error
|
|
||||||
// code from one of the update, finalize, result, or reset
|
|
||||||
// methods is returned.
|
|
||||||
//
|
|
||||||
// If the fault is that the output does not match the test
|
|
||||||
// vector, EMSHA_TEST_FAILURE is returned.
|
|
||||||
//
|
|
||||||
EMSHA_RESULT sha256_self_test(void);
|
|
||||||
} // end of namespace emsha
|
|
||||||
|
|
||||||
|
|
||||||
#endif // __EMSHA_SHA256_HH
|
|
||||||
|
|
@ -1,92 +0,0 @@
|
||||||
/*
|
|
||||||
* The MIT License (MIT)
|
|
||||||
*
|
|
||||||
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* copy of this software and associated documentation files (the "Software"),
|
|
||||||
* to deal in the Software without restriction, including without limitation
|
|
||||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
||||||
* and/or sell copies of the Software, and to permit persons to whom the
|
|
||||||
* Software is furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
||||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
||||||
* IN THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
#ifndef __EMSHA_INTERNAL_HH
|
|
||||||
#define __EMSHA_INTERNAL_HH
|
|
||||||
|
|
||||||
|
|
||||||
#include <cstdint>
|
|
||||||
|
|
||||||
using std::uint8_t;
|
|
||||||
using std::uint32_t;
|
|
||||||
|
|
||||||
|
|
||||||
namespace emsha {
|
|
||||||
|
|
||||||
|
|
||||||
static inline uint32_t
|
|
||||||
rotr32(uint32_t x, uint8_t n)
|
|
||||||
{
|
|
||||||
return ((x >> n) | (x << (32 - n)));
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static inline uint32_t
|
|
||||||
sha_ch(uint32_t x, uint32_t y, uint32_t z)
|
|
||||||
{
|
|
||||||
return ((x & y) ^ ((~x) & z));
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static inline uint32_t
|
|
||||||
sha_maj(uint32_t x, uint32_t y, uint32_t z)
|
|
||||||
{
|
|
||||||
return (x & y) ^ (x & z) ^ (y & z);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static inline uint32_t
|
|
||||||
sha_Sigma0(uint32_t x)
|
|
||||||
{
|
|
||||||
return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static inline uint32_t
|
|
||||||
sha_Sigma1(uint32_t x)
|
|
||||||
{
|
|
||||||
return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static inline uint32_t
|
|
||||||
sha_sigma0(uint32_t x)
|
|
||||||
{
|
|
||||||
return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >> 3);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static inline uint32_t
|
|
||||||
sha_sigma1(uint32_t x)
|
|
||||||
{
|
|
||||||
return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >> 10);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
} // end of namespace emsha
|
|
||||||
|
|
||||||
|
|
||||||
#endif // __EMSHA_INTERNAL_HH
|
|
||||||
|
|
@ -1,10 +0,0 @@
|
||||||
prefix=@prefix@
|
|
||||||
exec_prefix=@exec_prefix@
|
|
||||||
libdir=@libdir@
|
|
||||||
includedir=@includedir@
|
|
||||||
|
|
||||||
Name: @PACKAGE_NAME@
|
|
||||||
Description: C++11 HMAC-SHA256 library
|
|
||||||
URL: @PACKAGE_URL@
|
|
||||||
Version: @PACKAGE_VERSION@
|
|
||||||
Libs: -L${libdir} -Wl,-rpath,${libdir} -lemsha
|
|
||||||
459
src/sha256.cc
459
src/sha256.cc
|
|
@ -1,459 +0,0 @@
|
||||||
/*
|
|
||||||
* The MIT License (MIT)
|
|
||||||
*
|
|
||||||
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* copy of this software and associated documentation files (the "Software"),
|
|
||||||
* to deal in the Software without restriction, including without limitation
|
|
||||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
||||||
* and/or sell copies of the Software, and to permit persons to whom the
|
|
||||||
* Software is furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
||||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
||||||
* IN THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
#include <cassert>
|
|
||||||
#include <cstdint>
|
|
||||||
#include <cstring>
|
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
|
||||||
#include <emsha/sha256.hh>
|
|
||||||
#include "internal.hh"
|
|
||||||
|
|
||||||
|
|
||||||
namespace emsha {
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* SHA-256 constants, from FIPS 180-4 page 11.
|
|
||||||
*/
|
|
||||||
static constexpr uint32_t SHA256_K[64] = {
|
|
||||||
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
|
|
||||||
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
|
|
||||||
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
|
|
||||||
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
|
|
||||||
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
|
|
||||||
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
|
|
||||||
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
|
|
||||||
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
|
|
||||||
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
|
|
||||||
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
|
|
||||||
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
|
|
||||||
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
|
|
||||||
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
|
|
||||||
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
|
|
||||||
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
|
|
||||||
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* SHA-256 initialisation vector, from FIPS 180-4 page 15.
|
|
||||||
*/
|
|
||||||
static constexpr uint32_t EMSHA_256_H0[] = {
|
|
||||||
0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
|
|
||||||
0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
sha256_digest(const uint8_t *m, uint32_t ml, uint8_t *d)
|
|
||||||
{
|
|
||||||
SHA256 h;
|
|
||||||
EMSHA_RESULT ret;
|
|
||||||
|
|
||||||
if (EMSHA_ROK != (ret = h.update(m, ml))) {
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
return h.finalize(d);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
SHA256::SHA256()
|
|
||||||
:mlen(), hstatus(), hcomplete(), mbi()
|
|
||||||
{
|
|
||||||
this->reset();
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
SHA256::~SHA256()
|
|
||||||
{
|
|
||||||
memset(this->mb, 0, SHA256_MB_SIZE);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
inline EMSHA_RESULT
|
|
||||||
SHA256::add_length(uint32_t l)
|
|
||||||
{
|
|
||||||
uint32_t tmp = this->mlen + l;
|
|
||||||
|
|
||||||
if (tmp < this->mlen) {
|
|
||||||
return SHA256_INPUT_TOO_LONG;
|
|
||||||
}
|
|
||||||
this->mlen = tmp;
|
|
||||||
assert(this->mlen > 0);
|
|
||||||
|
|
||||||
return EMSHA_ROK;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
SHA256::reset()
|
|
||||||
{
|
|
||||||
// The message block is set to the initial hash vector.
|
|
||||||
this->i_hash[0] = EMSHA_256_H0[0];
|
|
||||||
this->i_hash[1] = EMSHA_256_H0[1];
|
|
||||||
this->i_hash[2] = EMSHA_256_H0[2];
|
|
||||||
this->i_hash[3] = EMSHA_256_H0[3];
|
|
||||||
this->i_hash[4] = EMSHA_256_H0[4];
|
|
||||||
this->i_hash[5] = EMSHA_256_H0[5];
|
|
||||||
this->i_hash[6] = EMSHA_256_H0[6];
|
|
||||||
this->i_hash[7] = EMSHA_256_H0[7];
|
|
||||||
|
|
||||||
this->mbi = 0;
|
|
||||||
this->hstatus = EMSHA_ROK;
|
|
||||||
this->hcomplete = 0;
|
|
||||||
this->mlen = 0;
|
|
||||||
memset(this->mb, 0, SHA256_MB_SIZE);
|
|
||||||
|
|
||||||
return this->hstatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// Read 32 bits from the byte buffer chunk as an unsigned 32-bit integer.
|
|
||||||
static inline uint32_t
|
|
||||||
chunk_to_uint32(uint8_t *chunk)
|
|
||||||
{
|
|
||||||
return ((*chunk) << 24) |
|
|
||||||
((*(chunk + 1)) << 16) |
|
|
||||||
((*(chunk + 2)) << 8) |
|
|
||||||
(*(chunk + 3));
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// Copy an unsigned 32-bit integer into the start of the byte buffer chunk.
|
|
||||||
static inline void
|
|
||||||
uint32_to_chunk(uint32_t x, uint8_t *chunk)
|
|
||||||
{
|
|
||||||
chunk[0] = (x & 0xff000000) >> 24;
|
|
||||||
chunk[1] = (x & 0x00ff0000) >> 16;
|
|
||||||
chunk[2] = (x & 0x0000ff00) >> 8;
|
|
||||||
chunk[3] = (x & 0x000000ff);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// FIPS 180-4, page 22.
|
|
||||||
void
|
|
||||||
SHA256::update_message_block()
|
|
||||||
{
|
|
||||||
uint32_t w[64];
|
|
||||||
uint32_t i = 0;
|
|
||||||
uint32_t chunk = 0;
|
|
||||||
uint32_t a, b, c, d, e, f, g, h;
|
|
||||||
|
|
||||||
while (i < 16) {
|
|
||||||
w[i++] = chunk_to_uint32(this->mb + chunk);
|
|
||||||
chunk += 4;
|
|
||||||
}
|
|
||||||
this->mbi = 0;
|
|
||||||
|
|
||||||
for (i = 16; i < 64; i++) {
|
|
||||||
w[i] = sha_sigma1(w[i - 2]) + w[i - 7] +
|
|
||||||
sha_sigma0(w[i - 15]) + w[i - 16];
|
|
||||||
}
|
|
||||||
|
|
||||||
a = this->i_hash[0];
|
|
||||||
b = this->i_hash[1];
|
|
||||||
c = this->i_hash[2];
|
|
||||||
d = this->i_hash[3];
|
|
||||||
e = this->i_hash[4];
|
|
||||||
f = this->i_hash[5];
|
|
||||||
g = this->i_hash[6];
|
|
||||||
h = this->i_hash[7];
|
|
||||||
|
|
||||||
for (i = 0; i < 64; i++) {
|
|
||||||
uint32_t t1, t2;
|
|
||||||
t1 = h + sha_Sigma1(e) + sha_ch(e, f, g) + SHA256_K[i] + w[i];
|
|
||||||
t2 = sha_Sigma0(a) + sha_maj(a, b, c);
|
|
||||||
h = g;
|
|
||||||
g = f;
|
|
||||||
f = e;
|
|
||||||
e = d + t1;
|
|
||||||
d = c;
|
|
||||||
c = b;
|
|
||||||
b = a;
|
|
||||||
a = t1 + t2;
|
|
||||||
}
|
|
||||||
|
|
||||||
this->i_hash[0] += a;
|
|
||||||
this->i_hash[1] += b;
|
|
||||||
this->i_hash[2] += c;
|
|
||||||
this->i_hash[3] += d;
|
|
||||||
this->i_hash[4] += e;
|
|
||||||
this->i_hash[5] += f;
|
|
||||||
this->i_hash[6] += g;
|
|
||||||
this->i_hash[7] += h;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
SHA256::update(const uint8_t *m, uint32_t ml)
|
|
||||||
{
|
|
||||||
// Checking invariants:
|
|
||||||
// If the message length is zero, there's nothing to be done.
|
|
||||||
if (0 == ml) return EMSHA_ROK;
|
|
||||||
|
|
||||||
// The message passed in cannot be the null pointer if the
|
|
||||||
// message length is greater than 0.
|
|
||||||
if (nullptr == m) return EMSHA_NULLPTR;
|
|
||||||
|
|
||||||
// If the SHA256 object is in a bad state, don't proceed.
|
|
||||||
if (EMSHA_ROK != this->hstatus) return this->hstatus;
|
|
||||||
|
|
||||||
// If the hash has been finalised, don't proceed.
|
|
||||||
if (0 != this->hcomplete) return EMSHA_INVALID_STATE;
|
|
||||||
// Invariants satisfied by here.
|
|
||||||
|
|
||||||
for (uint32_t i = 0; i < ml; i++) {
|
|
||||||
this->mb[this->mbi] = *(m + i);
|
|
||||||
mbi++;
|
|
||||||
|
|
||||||
if (EMSHA_ROK == this->add_length(8)) {
|
|
||||||
if (SHA256_MB_SIZE == this->mbi) {
|
|
||||||
this->update_message_block();
|
|
||||||
|
|
||||||
// Assumption: following the message block
|
|
||||||
// write, the context should still be in a good
|
|
||||||
// state.
|
|
||||||
assert(EMSHA_ROK == this->hstatus);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return this->hstatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
inline void
|
|
||||||
SHA256::pad_message(uint8_t pc)
|
|
||||||
{
|
|
||||||
// Assumption: the context is not in a corrupted state.
|
|
||||||
assert(EMSHA_ROK == this->hstatus);
|
|
||||||
|
|
||||||
if (this->mbi < (SHA256_MB_SIZE - 8)) {
|
|
||||||
this->mb[this->mbi++] = pc;
|
|
||||||
} else {
|
|
||||||
bool pc_add = false;
|
|
||||||
|
|
||||||
if (this->mbi < SHA256_MB_SIZE - 1) {
|
|
||||||
this->mb[this->mbi++] = pc;
|
|
||||||
pc_add = true;
|
|
||||||
}
|
|
||||||
|
|
||||||
while (this->mbi < SHA256_MB_SIZE) {
|
|
||||||
this->mb[this->mbi++] = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
this->update_message_block();
|
|
||||||
if (!pc_add) {
|
|
||||||
this->mb[this->mbi++] = pc;
|
|
||||||
}
|
|
||||||
|
|
||||||
// Assumption: updating the message block has not left the
|
|
||||||
// context in a corrupted state.
|
|
||||||
assert(EMSHA_ROK == this->hstatus);
|
|
||||||
}
|
|
||||||
|
|
||||||
while (this->mbi < (SHA256_MB_SIZE - 8)) {
|
|
||||||
this->mb[this->mbi++] = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
// lstart marks the starting point for the length packing.
|
|
||||||
uint32_t lstart = SHA256_MB_SIZE - 8;
|
|
||||||
|
|
||||||
this->mb[lstart] = (uint8_t)(this->mlen >> 56);
|
|
||||||
this->mb[lstart+1] =
|
|
||||||
(uint8_t)((this->mlen & 0x00ff000000000000L) >> 48);
|
|
||||||
this->mb[lstart+2] =
|
|
||||||
(uint8_t)((this->mlen & 0x0000ff0000000000L) >> 40);
|
|
||||||
this->mb[lstart+3] =
|
|
||||||
(uint8_t)((this->mlen & 0x000000ff00000000L) >> 32);
|
|
||||||
this->mb[lstart+4] =
|
|
||||||
(uint8_t)((this->mlen & 0x00000000ff000000L) >> 24);
|
|
||||||
this->mb[lstart+5] =
|
|
||||||
(uint8_t)((this->mlen & 0x0000000000ff0000L) >> 16);
|
|
||||||
this->mb[lstart+6] =
|
|
||||||
(uint8_t)((this->mlen & 0x000000000000ff00L) >> 8);
|
|
||||||
this->mb[lstart+7] =
|
|
||||||
(uint8_t)(this->mlen & 0x00000000000000ffL);
|
|
||||||
|
|
||||||
this->update_message_block();
|
|
||||||
|
|
||||||
// Assumption: updating the message block has not left the context in a
|
|
||||||
// corrupted state.
|
|
||||||
assert(EMSHA_ROK == this->hstatus);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
SHA256::finalize(uint8_t *d)
|
|
||||||
{
|
|
||||||
// Check invariants.
|
|
||||||
// The digest cannot be a null pointer; this library allocates
|
|
||||||
// no memory of its own.
|
|
||||||
if (nullptr == d) return EMSHA_NULLPTR;
|
|
||||||
|
|
||||||
// If the SHA256 object is in a bad state, don't proceed.
|
|
||||||
if (EMSHA_ROK != this->hstatus) return this->hstatus;
|
|
||||||
|
|
||||||
// If the hash has been finalised, don't proceed.
|
|
||||||
if (0 != this->hcomplete) return EMSHA_INVALID_STATE;
|
|
||||||
// Invariants satisfied by here.
|
|
||||||
|
|
||||||
this->pad_message(0x80);
|
|
||||||
|
|
||||||
// Assumption: padding the message block has not left the context in a
|
|
||||||
// corrupted state.
|
|
||||||
assert(EMSHA_ROK == this->hstatus);
|
|
||||||
for (uint8_t i = 0; i < SHA256_MB_SIZE; i++) {
|
|
||||||
this->mb[i] = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
this->hcomplete = 1;
|
|
||||||
this->mlen = 0;
|
|
||||||
|
|
||||||
uint32_to_chunk(this->i_hash[0], d);
|
|
||||||
uint32_to_chunk(this->i_hash[1], d+4);
|
|
||||||
uint32_to_chunk(this->i_hash[2], d+8);
|
|
||||||
uint32_to_chunk(this->i_hash[3], d+12);
|
|
||||||
uint32_to_chunk(this->i_hash[4], d+16);
|
|
||||||
uint32_to_chunk(this->i_hash[5], d+20);
|
|
||||||
uint32_to_chunk(this->i_hash[6], d+24);
|
|
||||||
uint32_to_chunk(this->i_hash[7], d+28);
|
|
||||||
|
|
||||||
return EMSHA_ROK;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
SHA256::result(uint8_t *d)
|
|
||||||
{
|
|
||||||
// Check invariants.
|
|
||||||
// The digest cannot be a null pointer; this library allocates
|
|
||||||
// no memory of its own.
|
|
||||||
if (nullptr == d) return EMSHA_NULLPTR;
|
|
||||||
|
|
||||||
// If the SHA256 object is in a bad state, don't proceed.
|
|
||||||
if (EMSHA_ROK != this->hstatus) return this->hstatus;
|
|
||||||
// Invariants satisfied by here.
|
|
||||||
|
|
||||||
if (!this->hcomplete) {
|
|
||||||
return this->finalize(d);
|
|
||||||
}
|
|
||||||
|
|
||||||
uint32_to_chunk(this->i_hash[0], d);
|
|
||||||
uint32_to_chunk(this->i_hash[1], d+4);
|
|
||||||
uint32_to_chunk(this->i_hash[2], d+8);
|
|
||||||
uint32_to_chunk(this->i_hash[3], d+12);
|
|
||||||
uint32_to_chunk(this->i_hash[4], d+16);
|
|
||||||
uint32_to_chunk(this->i_hash[5], d+20);
|
|
||||||
uint32_to_chunk(this->i_hash[6], d+24);
|
|
||||||
uint32_to_chunk(this->i_hash[7], d+28);
|
|
||||||
|
|
||||||
return EMSHA_ROK;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
#ifndef EMSHA_NO_SELFTEST
|
|
||||||
static const uint8_t empty_vector[] = {
|
|
||||||
0xe3, 0xb0, 0xc4, 0x42,
|
|
||||||
0x98, 0xfc, 0x1c, 0x14,
|
|
||||||
0x9a, 0xfb, 0xf4, 0xc8,
|
|
||||||
0x99, 0x6f, 0xb9, 0x24,
|
|
||||||
0x27, 0xae, 0x41, 0xe4,
|
|
||||||
0x64, 0x9b, 0x93, 0x4c,
|
|
||||||
0xa4, 0x95, 0x99, 0x1b,
|
|
||||||
0x78, 0x52, 0xb8, 0x55
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
static const uint8_t hello_world[] = {
|
|
||||||
0x09, 0xca, 0x7e, 0x4e,
|
|
||||||
0xaa, 0x6e, 0x8a, 0xe9,
|
|
||||||
0xc7, 0xd2, 0x61, 0x16,
|
|
||||||
0x71, 0x29, 0x18, 0x48,
|
|
||||||
0x83, 0x64, 0x4d, 0x07,
|
|
||||||
0xdf, 0xba, 0x7c, 0xbf,
|
|
||||||
0xbc, 0x4c, 0x8a, 0x2e,
|
|
||||||
0x08, 0x36, 0x0d, 0x5b,
|
|
||||||
};
|
|
||||||
|
|
||||||
constexpr uint32_t EMSHA_SELF_TEST_ITERS = 4;
|
|
||||||
|
|
||||||
static EMSHA_RESULT
|
|
||||||
run_test(const uint8_t *input, uint32_t input_len, const uint8_t *expected)
|
|
||||||
{
|
|
||||||
uint8_t d[SHA256_HASH_SIZE];
|
|
||||||
emsha::SHA256 ctx;
|
|
||||||
emsha::EMSHA_RESULT res;
|
|
||||||
|
|
||||||
res = ctx.update(input, input_len);
|
|
||||||
if (EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
for (uint32_t n = 0; n < EMSHA_SELF_TEST_ITERS; n++) {
|
|
||||||
res = ctx.result(d);
|
|
||||||
if (EMSHA_ROK != res) {
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
for (uint32_t i = 0; i < SHA256_HASH_SIZE; i++) {
|
|
||||||
if (expected[i] != d[i]) {
|
|
||||||
return EMSHA_TEST_FAILURE;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return EMSHA_ROK;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
EMSHA_RESULT
|
|
||||||
sha256_self_test()
|
|
||||||
{
|
|
||||||
EMSHA_RESULT res;
|
|
||||||
|
|
||||||
res = run_test((const uint8_t *)"", 0, empty_vector);
|
|
||||||
if (EMSHA_ROK == res) {
|
|
||||||
res = run_test((const uint8_t *)"hello, world", 12, hello_world);
|
|
||||||
}
|
|
||||||
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
#else // #ifdef EMSHA_NO_SELFTEST
|
|
||||||
EMSHA_RESULT
|
|
||||||
sha256_self_test()
|
|
||||||
{
|
|
||||||
return EMSHA_SELFTEST_DISABLED;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
#endif // EMSHA_NO_SELFTEST
|
|
||||||
|
|
||||||
|
|
||||||
} // end namespace emsha
|
|
||||||
214
src/test_mem.cc
214
src/test_mem.cc
|
|
@ -1,214 +0,0 @@
|
||||||
/*
|
|
||||||
* The MIT License (MIT)
|
|
||||||
*
|
|
||||||
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* copy of this software and associated documentation files (the "Software"),
|
|
||||||
* to deal in the Software without restriction, including without limitation
|
|
||||||
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
||||||
* and/or sell copies of the Software, and to permit persons to whom the
|
|
||||||
* Software is furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
||||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
||||||
* IN THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
#ifdef NDEBUG
|
|
||||||
#undef NDEBUG
|
|
||||||
#endif
|
|
||||||
#include <cassert>
|
|
||||||
#include <chrono>
|
|
||||||
#include <cstring>
|
|
||||||
#include <algorithm>
|
|
||||||
#include <cstdio>
|
|
||||||
#include <iostream>
|
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
|
||||||
#include <emsha/sha256.hh>
|
|
||||||
#include <emsha/hmac.hh>
|
|
||||||
|
|
||||||
|
|
||||||
// Number of test iterations.
|
|
||||||
static constexpr std::uint32_t ITERS = 3000000;
|
|
||||||
|
|
||||||
// The key used for HMAC.
|
|
||||||
static constexpr std::uint8_t k[] = {
|
|
||||||
0xc5, 0xb6, 0x80, 0xac, 0xdc, 0xf4, 0xff, 0xa1,
|
|
||||||
0x37, 0x05, 0xc0, 0x71, 0x11, 0x24, 0x31, 0x7c,
|
|
||||||
0xa5, 0xa2, 0xcf, 0x4d, 0x33, 0x00, 0x56, 0x4f,
|
|
||||||
0x69, 0x0f, 0x76, 0x70, 0x87, 0xd9, 0x35, 0xce,
|
|
||||||
0xa3, 0xad, 0xa3, 0x4f, 0x30, 0xe2, 0x7c, 0x58,
|
|
||||||
0x88, 0xd4, 0x89, 0x6a, 0xb5, 0xe0, 0x97, 0x1c,
|
|
||||||
0x7a, 0x69, 0x65, 0xc7, 0x61, 0x0d, 0x6d, 0xb6,
|
|
||||||
0x9b, 0x0e, 0x56, 0xd7, 0x0f, 0x5a, 0x01, 0x50,
|
|
||||||
};
|
|
||||||
static constexpr std::uint32_t kl = sizeof(k) / sizeof(k[0]);
|
|
||||||
|
|
||||||
// The message provided to both SHA-256 and HMAC-SHA-256; it is
|
|
||||||
// "The fugacity of a constituent in a mixture of gases at a given
|
|
||||||
// temperature is proportional to its mole fraction. Lewis-Randall Rule",
|
|
||||||
// chosen as one of the longer test vectors.
|
|
||||||
static const std::uint8_t m[] = {
|
|
||||||
0x54, 0x68, 0x65, 0x20, 0x66, 0x75, 0x67, 0x61,
|
|
||||||
0x63, 0x69, 0x74, 0x79, 0x20, 0x6f, 0x66, 0x20,
|
|
||||||
0x61, 0x20, 0x63, 0x6f, 0x6e, 0x73, 0x74, 0x69,
|
|
||||||
0x74, 0x75, 0x65, 0x6e, 0x74, 0x20, 0x69, 0x6e,
|
|
||||||
0x20, 0x61, 0x20, 0x6d, 0x69, 0x78, 0x74, 0x75,
|
|
||||||
0x72, 0x65, 0x20, 0x6f, 0x66, 0x20, 0x67, 0x61,
|
|
||||||
0x73, 0x65, 0x73, 0x20, 0x61, 0x74, 0x20, 0x61,
|
|
||||||
0x20, 0x67, 0x69, 0x76, 0x65, 0x6e, 0x20, 0x74,
|
|
||||||
0x65, 0x6d, 0x70, 0x65, 0x72, 0x61, 0x74, 0x75,
|
|
||||||
0x72, 0x65, 0x20, 0x69, 0x73, 0x20, 0x70, 0x72,
|
|
||||||
0x6f, 0x70, 0x6f, 0x72, 0x74, 0x69, 0x6f, 0x6e,
|
|
||||||
0x61, 0x6c, 0x20, 0x74, 0x6f, 0x20, 0x69, 0x74,
|
|
||||||
0x73, 0x20, 0x6d, 0x6f, 0x6c, 0x65, 0x20, 0x66,
|
|
||||||
0x72, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x2e,
|
|
||||||
0x20, 0x20, 0x4c, 0x65, 0x77, 0x69, 0x73, 0x2d,
|
|
||||||
0x52, 0x61, 0x6e, 0x64, 0x61, 0x6c, 0x6c, 0x20,
|
|
||||||
0x52, 0x75, 0x6c, 0x65
|
|
||||||
};
|
|
||||||
|
|
||||||
// d is the expected result of SHA256(m).
|
|
||||||
static constexpr std::uint8_t d[emsha::SHA256_HASH_SIZE] = {
|
|
||||||
0x39, 0x55, 0x85, 0xce, 0x30, 0x61, 0x7b, 0x62,
|
|
||||||
0xc8, 0x0b, 0x93, 0xe8, 0x20, 0x8c, 0xe8, 0x66,
|
|
||||||
0xd4, 0xed, 0xc8, 0x11, 0xa1, 0x77, 0xfd, 0xb4,
|
|
||||||
0xb8, 0x2d, 0x39, 0x11, 0xd8, 0x69, 0x64, 0x23
|
|
||||||
};
|
|
||||||
|
|
||||||
// t is the expected result of HMAC-SHA-256(k, m).
|
|
||||||
static constexpr std::uint8_t t[emsha::SHA256_HASH_SIZE] = {
|
|
||||||
0xbb, 0xc4, 0x7c, 0x35, 0x33, 0x4b, 0x9d, 0x90,
|
|
||||||
0xee, 0x20, 0x88, 0x30, 0xe1, 0x1a, 0x0f, 0xf3,
|
|
||||||
0xf4, 0x7d, 0xcc, 0xb0, 0xc5, 0xfb, 0x83, 0xe5,
|
|
||||||
0xc2, 0xf5, 0xa7, 0x94, 0x50, 0xb6, 0xe0, 0xe0,
|
|
||||||
};
|
|
||||||
|
|
||||||
// dig is used to store the output of SHA-256 and HMAC-SHA-256.
|
|
||||||
static std::uint8_t dig[emsha::SHA256_HASH_SIZE];
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
init(void)
|
|
||||||
{
|
|
||||||
std::fill(dig, dig+emsha::SHA256_HASH_SIZE, 0);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
iterate_sha(void)
|
|
||||||
{
|
|
||||||
emsha::SHA256 ctx;
|
|
||||||
int cmp;
|
|
||||||
emsha::EMSHA_RESULT res;
|
|
||||||
|
|
||||||
res = ctx.update(m, sizeof(m));
|
|
||||||
assert(emsha::EMSHA_ROK == res);
|
|
||||||
res = ctx.result(dig);
|
|
||||||
assert(emsha::EMSHA_ROK == res);
|
|
||||||
|
|
||||||
cmp = std::memcmp(dig, d, emsha::SHA256_HASH_SIZE);
|
|
||||||
assert(0 == cmp);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
iterate_hmac(void)
|
|
||||||
{
|
|
||||||
emsha::HMAC ctx(k, kl);
|
|
||||||
int cmp;
|
|
||||||
emsha::EMSHA_RESULT res;
|
|
||||||
|
|
||||||
res = ctx.update(m, sizeof(m));
|
|
||||||
assert(emsha::EMSHA_ROK == res);
|
|
||||||
res = ctx.result(dig);
|
|
||||||
assert(emsha::EMSHA_ROK == res);
|
|
||||||
|
|
||||||
cmp = std::memcmp(dig, t, emsha::SHA256_HASH_SIZE);
|
|
||||||
assert(0 == cmp);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
iterate_sha_sp(void)
|
|
||||||
{
|
|
||||||
int cmp;
|
|
||||||
|
|
||||||
assert(emsha::EMSHA_ROK == emsha::sha256_digest(m, sizeof(m), dig));
|
|
||||||
cmp = std::memcmp(dig, d, emsha::SHA256_HASH_SIZE);
|
|
||||||
assert(0 == cmp);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
iterate_hmac_sp(void)
|
|
||||||
{
|
|
||||||
int cmp;
|
|
||||||
emsha::EMSHA_RESULT res;
|
|
||||||
|
|
||||||
res = emsha::compute_hmac(k, kl, m, sizeof(m), dig);
|
|
||||||
assert(emsha::EMSHA_ROK == res);
|
|
||||||
|
|
||||||
cmp = std::memcmp(dig, t, emsha::SHA256_HASH_SIZE);
|
|
||||||
assert(0 == cmp);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
iterate(std::string label, void(iteration)(void))
|
|
||||||
{
|
|
||||||
std::cout << "=== " << label << " ===" << std::endl;
|
|
||||||
auto start = std::chrono::steady_clock::now();
|
|
||||||
|
|
||||||
for (std::uint32_t i = 0; i < ITERS; i++)
|
|
||||||
iteration();
|
|
||||||
|
|
||||||
auto end = std::chrono::steady_clock::now();
|
|
||||||
auto delta = (end - start );
|
|
||||||
|
|
||||||
std::cout << "Total time: "
|
|
||||||
<< std::chrono::duration <double, std::milli>(delta).count()
|
|
||||||
<< " ms" << std::endl;
|
|
||||||
std::cout << "Average over " << ITERS << " tests: "
|
|
||||||
<< std::chrono::duration <double, std::nano>(delta).count() / ITERS
|
|
||||||
<< " ns" << std::endl;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void
|
|
||||||
cold_start(void)
|
|
||||||
{
|
|
||||||
std::cout << "=== SHA-256 cold start ===\n";
|
|
||||||
auto start = std::chrono::steady_clock::now();
|
|
||||||
|
|
||||||
iterate_sha();
|
|
||||||
|
|
||||||
auto end = std::chrono::steady_clock::now();
|
|
||||||
auto delta = (end - start );
|
|
||||||
|
|
||||||
std::cout << "Total time: "
|
|
||||||
<< std::chrono::duration <double, std::nano>(delta).count()
|
|
||||||
<< " ns" << std::endl;
|
|
||||||
}
|
|
||||||
|
|
||||||
int
|
|
||||||
main(void)
|
|
||||||
{
|
|
||||||
init();
|
|
||||||
|
|
||||||
cold_start();
|
|
||||||
iterate("SHA-256", iterate_sha);
|
|
||||||
iterate("SHA-256 single-pass", iterate_sha_sp);
|
|
||||||
iterate("HMAC-SHA-256", iterate_hmac);
|
|
||||||
iterate("HMAC-SHA-256 single-pass", iterate_hmac_sp);
|
|
||||||
}
|
|
||||||
|
|
@ -25,9 +25,9 @@
|
||||||
|
|
||||||
#include <iostream>
|
#include <iostream>
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
#include <emsha/emsha.h>
|
||||||
|
|
||||||
#include "test_utils.hh"
|
#include "test_utils.h"
|
||||||
|
|
||||||
|
|
||||||
using namespace std;
|
using namespace std;
|
||||||
|
|
@ -35,27 +35,27 @@ using namespace std;
|
||||||
|
|
||||||
#ifndef EMSHA_NO_HEXSTRING
|
#ifndef EMSHA_NO_HEXSTRING
|
||||||
static void
|
static void
|
||||||
hexstring_test(void)
|
hexStringTest()
|
||||||
{
|
{
|
||||||
uint8_t buf[32];
|
uint8_t buf[32];
|
||||||
uint8_t out[65];
|
uint8_t out[65];
|
||||||
string expected = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f";
|
string const expected = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f";
|
||||||
|
|
||||||
out[64] = 0;
|
out[64] = 0;
|
||||||
for (uint32_t i = 0; i < 32; i++) {
|
for (uint32_t i = 0; i < 32; i++) {
|
||||||
buf[i] = (uint8_t)i;
|
buf[i] = static_cast<uint8_t>(i);
|
||||||
}
|
}
|
||||||
|
|
||||||
emsha::hexstring(out, buf, emsha::SHA256_HASH_SIZE);
|
emsha::HexString(out, buf, emsha::SHA256_HASH_SIZE);
|
||||||
string outs(reinterpret_cast<const char *>(out));
|
string const outs(reinterpret_cast<const char *>(out));
|
||||||
if (outs != expected) {
|
if (outs != expected) {
|
||||||
cerr << "FAILED: hexstring" << endl;
|
cerr << "FAILED: HexString" << endl;
|
||||||
cerr << "\twanted: " << expected << endl;
|
cerr << "\twanted: " << expected << endl;
|
||||||
cerr << "\thave: " << out << endl;
|
cerr << "\thave: " << out << endl;
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
|
||||||
cout << "PASSED: hexstring ";
|
cout << "PASSED: HexString ";
|
||||||
#ifdef EMSHA_NO_HEXLUT
|
#ifdef EMSHA_NO_HEXLUT
|
||||||
cout << "(small LUT)";
|
cout << "(small LUT)";
|
||||||
#else // #ifdef EMSHA_NO_HEXLUT
|
#else // #ifdef EMSHA_NO_HEXLUT
|
||||||
|
|
@ -69,7 +69,7 @@ hexstring_test(void)
|
||||||
// TODO(kyle): build a test harness around this to verify times between
|
// TODO(kyle): build a test harness around this to verify times between
|
||||||
// runs.
|
// runs.
|
||||||
static void
|
static void
|
||||||
hash_equal_test(void)
|
hashEqualTest()
|
||||||
{
|
{
|
||||||
uint8_t a[emsha::SHA256_HASH_SIZE];
|
uint8_t a[emsha::SHA256_HASH_SIZE];
|
||||||
uint8_t b[emsha::SHA256_HASH_SIZE];
|
uint8_t b[emsha::SHA256_HASH_SIZE];
|
||||||
|
|
@ -79,13 +79,13 @@ hash_equal_test(void)
|
||||||
b[i] = static_cast<uint8_t>(i);
|
b[i] = static_cast<uint8_t>(i);
|
||||||
}
|
}
|
||||||
|
|
||||||
if (!(emsha::hash_equal(a, b))) {
|
if (!(emsha::HashEqual(a, b))) {
|
||||||
string s;
|
string s;
|
||||||
cerr << "FAILED: hash_equal\n";
|
cerr << "FAILED: HashEqual\n";
|
||||||
cerr << "\thash_equal should have succeeded comparing a and b.\n";
|
cerr << "\tHashEqual should have succeeded comparing a and b.\n";
|
||||||
dump_hexstring(s, a, emsha::SHA256_HASH_SIZE);
|
DumpHexString(s, a, emsha::SHA256_HASH_SIZE);
|
||||||
cerr << "\ta <- " << s << std::endl;
|
cerr << "\ta <- " << s << std::endl;
|
||||||
dump_hexstring(s, b, emsha::SHA256_HASH_SIZE);
|
DumpHexString(s, b, emsha::SHA256_HASH_SIZE);
|
||||||
cerr << "\tb <- " << s << std::endl;
|
cerr << "\tb <- " << s << std::endl;
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
|
@ -95,13 +95,13 @@ hash_equal_test(void)
|
||||||
b[i] = static_cast<uint8_t>(emsha::SHA256_HASH_SIZE - i);
|
b[i] = static_cast<uint8_t>(emsha::SHA256_HASH_SIZE - i);
|
||||||
}
|
}
|
||||||
|
|
||||||
if (emsha::hash_equal(a, b)) {
|
if (emsha::HashEqual(a, b)) {
|
||||||
string s;
|
string s;
|
||||||
cerr << "FAILED: hash_equal\n";
|
cerr << "FAILED: HashEqual\n";
|
||||||
cerr << "\thash_equal should not have succeeded comparing a and b.\n";
|
cerr << "\tHashEqual should not have succeeded comparing a and b.\n";
|
||||||
dump_hexstring(s, a, emsha::SHA256_HASH_SIZE);
|
DumpHexString(s, a, emsha::SHA256_HASH_SIZE);
|
||||||
cerr << "\ta <- " << s << std::endl;
|
cerr << "\ta <- " << s << std::endl;
|
||||||
dump_hexstring(s, b, emsha::SHA256_HASH_SIZE);
|
DumpHexString(s, b, emsha::SHA256_HASH_SIZE);
|
||||||
cerr << "\tb <- " << s << std::endl;
|
cerr << "\tb <- " << s << std::endl;
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
|
@ -116,28 +116,27 @@ hash_equal_test(void)
|
||||||
}
|
}
|
||||||
|
|
||||||
b[emsha::SHA256_HASH_SIZE - 1]--;
|
b[emsha::SHA256_HASH_SIZE - 1]--;
|
||||||
if (emsha::hash_equal(a, b)) {
|
if (emsha::HashEqual(a, b)) {
|
||||||
string s;
|
string s;
|
||||||
cerr << "FAILED: hash_equal\n";
|
cerr << "FAILED: HashEqual\n";
|
||||||
cerr << "\tREGRESSION: hash_equal should not have succeeded comparing a and b.\n";
|
cerr << "\tREGRESSION: HashEqual should not have succeeded comparing a and b.\n";
|
||||||
dump_hexstring(s, a, emsha::SHA256_HASH_SIZE);
|
DumpHexString(s, a, emsha::SHA256_HASH_SIZE);
|
||||||
cerr << "\ta <- " << s << std::endl;
|
cerr << "\ta <- " << s << std::endl;
|
||||||
dump_hexstring(s, b, emsha::SHA256_HASH_SIZE);
|
DumpHexString(s, b, emsha::SHA256_HASH_SIZE);
|
||||||
cerr << "\tb <- " << s << std::endl;
|
cerr << "\tb <- " << s << std::endl;
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
cout << "PASSED: HashEqual\n";
|
||||||
cout << "PASSED: hash_equal\n";
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
int
|
int
|
||||||
main(void)
|
main()
|
||||||
{
|
{
|
||||||
#ifndef EMSHA_NO_HEXSTRING
|
#ifndef EMSHA_NO_HEXSTRING
|
||||||
hexstring_test();
|
hexStringTest();
|
||||||
#endif
|
#endif
|
||||||
hash_equal_test();
|
hashEqualTest();
|
||||||
}
|
}
|
||||||
|
|
@ -25,15 +25,15 @@
|
||||||
|
|
||||||
#include <iostream>
|
#include <iostream>
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
#include <emsha/emsha.h>
|
||||||
#include <emsha/hmac.hh>
|
#include <emsha/hmac.h>
|
||||||
|
|
||||||
#include "test_utils.hh"
|
#include "test_utils.h"
|
||||||
|
|
||||||
using namespace std;
|
using namespace std;
|
||||||
|
|
||||||
|
|
||||||
const struct hmac_test rfc4231[] = {
|
const struct hmacTest rfc4231[] = {
|
||||||
{
|
{
|
||||||
{0x0b, 0x0b, 0x0b, 0x0b,
|
{0x0b, 0x0b, 0x0b, 0x0b,
|
||||||
0x0b, 0x0b, 0x0b, 0x0b,
|
0x0b, 0x0b, 0x0b, 0x0b,
|
||||||
|
|
@ -122,11 +122,11 @@ const struct hmac_test rfc4231[] = {
|
||||||
|
|
||||||
|
|
||||||
int
|
int
|
||||||
main(void)
|
main()
|
||||||
{
|
{
|
||||||
int res;
|
int res = 0;
|
||||||
|
|
||||||
res = run_hmac_tests((struct hmac_test *)rfc4231,
|
res = runHMACTests((struct hmacTest *) rfc4231,
|
||||||
sizeof rfc4231 / sizeof rfc4231[0],
|
sizeof rfc4231 / sizeof rfc4231[0],
|
||||||
"RFC 4231");
|
"RFC 4231");
|
||||||
if (-1 == res) {
|
if (-1 == res) {
|
||||||
|
|
@ -0,0 +1,217 @@
|
||||||
|
/*
|
||||||
|
* The MIT License (MIT)
|
||||||
|
*
|
||||||
|
* Copyright (c) 2015 K. Isom <coder@kyleisom.net>
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
* copy of this software and associated documentation files (the "Software"),
|
||||||
|
* to deal in the Software without restriction, including without limitation
|
||||||
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be included in
|
||||||
|
* all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
* IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef NDEBUG
|
||||||
|
#undef NDEBUG
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
#include <cassert>
|
||||||
|
#include <chrono>
|
||||||
|
#include <cstring>
|
||||||
|
#include <algorithm>
|
||||||
|
#include <cstdio>
|
||||||
|
#include <iostream>
|
||||||
|
|
||||||
|
#include <emsha/emsha.h>
|
||||||
|
#include <emsha/sha256.h>
|
||||||
|
#include <emsha/hmac.h>
|
||||||
|
|
||||||
|
|
||||||
|
// Number of test iterations.
|
||||||
|
static constexpr std::uint32_t ITERS = 8192;
|
||||||
|
|
||||||
|
// The key used for HMAC.
|
||||||
|
static constexpr std::uint8_t k[] = {
|
||||||
|
0xc5, 0xb6, 0x80, 0xac, 0xdc, 0xf4, 0xff, 0xa1,
|
||||||
|
0x37, 0x05, 0xc0, 0x71, 0x11, 0x24, 0x31, 0x7c,
|
||||||
|
0xa5, 0xa2, 0xcf, 0x4d, 0x33, 0x00, 0x56, 0x4f,
|
||||||
|
0x69, 0x0f, 0x76, 0x70, 0x87, 0xd9, 0x35, 0xce,
|
||||||
|
0xa3, 0xad, 0xa3, 0x4f, 0x30, 0xe2, 0x7c, 0x58,
|
||||||
|
0x88, 0xd4, 0x89, 0x6a, 0xb5, 0xe0, 0x97, 0x1c,
|
||||||
|
0x7a, 0x69, 0x65, 0xc7, 0x61, 0x0d, 0x6d, 0xb6,
|
||||||
|
0x9b, 0x0e, 0x56, 0xd7, 0x0f, 0x5a, 0x01, 0x50,
|
||||||
|
};
|
||||||
|
static constexpr std::uint32_t kl = sizeof(k) / sizeof(k[0]);
|
||||||
|
|
||||||
|
// The message provided to both SHA-256 and HMAC-SHA-256; it is
|
||||||
|
// "The fugacity of a constituent in a mixture of gases at a given
|
||||||
|
// temperature is proportional to its mole fraction. Lewis-Randall Rule",
|
||||||
|
// chosen as one of the longer test vectors.
|
||||||
|
static const std::uint8_t m[] = {
|
||||||
|
0x54, 0x68, 0x65, 0x20, 0x66, 0x75, 0x67, 0x61,
|
||||||
|
0x63, 0x69, 0x74, 0x79, 0x20, 0x6f, 0x66, 0x20,
|
||||||
|
0x61, 0x20, 0x63, 0x6f, 0x6e, 0x73, 0x74, 0x69,
|
||||||
|
0x74, 0x75, 0x65, 0x6e, 0x74, 0x20, 0x69, 0x6e,
|
||||||
|
0x20, 0x61, 0x20, 0x6d, 0x69, 0x78, 0x74, 0x75,
|
||||||
|
0x72, 0x65, 0x20, 0x6f, 0x66, 0x20, 0x67, 0x61,
|
||||||
|
0x73, 0x65, 0x73, 0x20, 0x61, 0x74, 0x20, 0x61,
|
||||||
|
0x20, 0x67, 0x69, 0x76, 0x65, 0x6e, 0x20, 0x74,
|
||||||
|
0x65, 0x6d, 0x70, 0x65, 0x72, 0x61, 0x74, 0x75,
|
||||||
|
0x72, 0x65, 0x20, 0x69, 0x73, 0x20, 0x70, 0x72,
|
||||||
|
0x6f, 0x70, 0x6f, 0x72, 0x74, 0x69, 0x6f, 0x6e,
|
||||||
|
0x61, 0x6c, 0x20, 0x74, 0x6f, 0x20, 0x69, 0x74,
|
||||||
|
0x73, 0x20, 0x6d, 0x6f, 0x6c, 0x65, 0x20, 0x66,
|
||||||
|
0x72, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x2e,
|
||||||
|
0x20, 0x20, 0x4c, 0x65, 0x77, 0x69, 0x73, 0x2d,
|
||||||
|
0x52, 0x61, 0x6e, 0x64, 0x61, 0x6c, 0x6c, 0x20,
|
||||||
|
0x52, 0x75, 0x6c, 0x65
|
||||||
|
};
|
||||||
|
|
||||||
|
// d is the expected result of SHA256(m).
|
||||||
|
static constexpr std::uint8_t d[emsha::SHA256_HASH_SIZE] = {
|
||||||
|
0x39, 0x55, 0x85, 0xce, 0x30, 0x61, 0x7b, 0x62,
|
||||||
|
0xc8, 0x0b, 0x93, 0xe8, 0x20, 0x8c, 0xe8, 0x66,
|
||||||
|
0xd4, 0xed, 0xc8, 0x11, 0xa1, 0x77, 0xfd, 0xb4,
|
||||||
|
0xb8, 0x2d, 0x39, 0x11, 0xd8, 0x69, 0x64, 0x23
|
||||||
|
};
|
||||||
|
|
||||||
|
// t is the expected result of HMAC-SHA-256(k, m).
|
||||||
|
static constexpr std::uint8_t t[emsha::SHA256_HASH_SIZE] = {
|
||||||
|
0xbb, 0xc4, 0x7c, 0x35, 0x33, 0x4b, 0x9d, 0x90,
|
||||||
|
0xee, 0x20, 0x88, 0x30, 0xe1, 0x1a, 0x0f, 0xf3,
|
||||||
|
0xf4, 0x7d, 0xcc, 0xb0, 0xc5, 0xfb, 0x83, 0xe5,
|
||||||
|
0xc2, 0xf5, 0xa7, 0x94, 0x50, 0xb6, 0xe0, 0xe0,
|
||||||
|
};
|
||||||
|
|
||||||
|
// dig is used to store the output of SHA-256 and HMAC-SHA-256.
|
||||||
|
static std::uint8_t dig[emsha::SHA256_HASH_SIZE];
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
init()
|
||||||
|
{
|
||||||
|
std::fill(dig, dig + emsha::SHA256_HASH_SIZE, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
iterateSHA()
|
||||||
|
{
|
||||||
|
emsha::SHA256 ctx;
|
||||||
|
int cmp = 0;
|
||||||
|
emsha::EMSHA_RESULT res;
|
||||||
|
|
||||||
|
res = ctx.Update(m, sizeof(m));
|
||||||
|
assert(emsha::EMSHA_ROK == res);
|
||||||
|
res = ctx.Result(dig);
|
||||||
|
assert(emsha::EMSHA_ROK == res);
|
||||||
|
|
||||||
|
cmp = std::memcmp(dig, d, emsha::SHA256_HASH_SIZE);
|
||||||
|
assert(0 == cmp);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
iterateHMAC()
|
||||||
|
{
|
||||||
|
emsha::HMAC ctx(k, kl);
|
||||||
|
int cmp = 0;
|
||||||
|
emsha::EMSHA_RESULT res;
|
||||||
|
|
||||||
|
res = ctx.Update(m, sizeof(m));
|
||||||
|
assert(emsha::EMSHA_ROK == res);
|
||||||
|
res = ctx.Result(dig);
|
||||||
|
assert(emsha::EMSHA_ROK == res);
|
||||||
|
|
||||||
|
cmp = std::memcmp(dig, t, emsha::SHA256_HASH_SIZE);
|
||||||
|
assert(0 == cmp);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
iterateSHASP()
|
||||||
|
{
|
||||||
|
int cmp = 0;
|
||||||
|
|
||||||
|
assert(emsha::EMSHA_ROK == emsha::sha256Digest(m, sizeof(m), dig));
|
||||||
|
cmp = std::memcmp(dig, d, emsha::SHA256_HASH_SIZE);
|
||||||
|
assert(0 == cmp);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
iterateHMACSP()
|
||||||
|
{
|
||||||
|
int cmp = 0;
|
||||||
|
emsha::EMSHA_RESULT res;
|
||||||
|
|
||||||
|
res = emsha::ComputeHMAC(k, kl, m, sizeof(m), dig);
|
||||||
|
assert(emsha::EMSHA_ROK == res);
|
||||||
|
|
||||||
|
cmp = std::memcmp(dig, t, emsha::SHA256_HASH_SIZE);
|
||||||
|
assert(0 == cmp);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
iterate(const std::string &label, void(iteration)(void))
|
||||||
|
{
|
||||||
|
std::cout << "=== " << label << " ===" << std::endl;
|
||||||
|
auto start = std::chrono::steady_clock::now();
|
||||||
|
|
||||||
|
for (std::uint32_t i = 0; i < ITERS; i++) {
|
||||||
|
iteration();
|
||||||
|
}
|
||||||
|
|
||||||
|
auto end = std::chrono::steady_clock::now();
|
||||||
|
auto delta = (end - start);
|
||||||
|
|
||||||
|
std::cout << "Total time: "
|
||||||
|
<< std::chrono::duration<double, std::milli>(delta).count()
|
||||||
|
<< " ms" << std::endl;
|
||||||
|
std::cout << "Average over " << ITERS << " tests: "
|
||||||
|
<< std::chrono::duration<double, std::nano>(delta).count() / ITERS
|
||||||
|
<< " ns" << std::endl;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
coldStart()
|
||||||
|
{
|
||||||
|
std::cout << "=== SHA-256 cold start ===\n";
|
||||||
|
auto start = std::chrono::steady_clock::now();
|
||||||
|
|
||||||
|
iterateSHA();
|
||||||
|
|
||||||
|
auto end = std::chrono::steady_clock::now();
|
||||||
|
auto delta = (end - start);
|
||||||
|
|
||||||
|
std::cout << "Total time: "
|
||||||
|
<< std::chrono::duration<double, std::nano>(delta).count()
|
||||||
|
<< " ns" << std::endl;
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main()
|
||||||
|
{
|
||||||
|
init();
|
||||||
|
|
||||||
|
coldStart();
|
||||||
|
iterate("SHA-256", iterateSHA);
|
||||||
|
iterate("SHA-256 single-pass", iterateSHASP);
|
||||||
|
iterate("HMAC-SHA-256", iterateHMAC);
|
||||||
|
iterate("HMAC-SHA-256 single-pass", iterateHMACSP);
|
||||||
|
}
|
||||||
|
|
@ -23,19 +23,17 @@
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <iostream>
|
#include <iostream>
|
||||||
|
#include <emsha/sha256.h>
|
||||||
|
#include <cassert>
|
||||||
|
|
||||||
#include <emsha/sha256.hh>
|
#include "test_utils.h"
|
||||||
|
|
||||||
#include "test_utils.hh"
|
|
||||||
|
|
||||||
using namespace std;
|
using namespace std;
|
||||||
|
|
||||||
|
|
||||||
// Tests taken from the Go SHA-256 package.
|
// Tests taken from the Go SHA-256 package.
|
||||||
const struct hash_test golden_tests[] = {
|
const struct hashTest goldenTests[] = {
|
||||||
{"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", ""},
|
{"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", ""},
|
||||||
{"ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb", "a"},
|
{"ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb", "a"},
|
||||||
{"fb8e20fc2e4c3f248c60c39bd652f3c1347298bb977b8b4d5903b85055620603", "ab"},
|
{"fb8e20fc2e4c3f248c60c39bd652f3c1347298bb977b8b4d5903b85055620603", "ab"},
|
||||||
|
|
@ -69,32 +67,33 @@ const struct hash_test golden_tests[] = {
|
||||||
{"4f9b189a13d030838269dce846b16a1ce9ce81fe63e65de2f636863336a98fe6", "How can you write a big system without C++? -Paul Glick"},
|
{"4f9b189a13d030838269dce846b16a1ce9ce81fe63e65de2f636863336a98fe6", "How can you write a big system without C++? -Paul Glick"},
|
||||||
};
|
};
|
||||||
|
|
||||||
|
static constexpr auto numGoldenTests = sizeof goldenTests / sizeof goldenTests[0];
|
||||||
|
static const std::string labelGoldenTests = "golden tests";
|
||||||
|
|
||||||
int
|
int
|
||||||
main(void)
|
main()
|
||||||
{
|
{
|
||||||
int res;
|
|
||||||
|
|
||||||
#ifdef EMSHA_NO_SELFTEST
|
#ifdef EMSHA_NO_SELFTEST
|
||||||
cout << "[NOTICE] internal self-tests have been disabled.\n";
|
cout << "[NOTICE] internal self-tests have been disabled.\n";
|
||||||
#else
|
#else
|
||||||
res = emsha::sha256_self_test();
|
auto selfTestStatus = emsha::sha256SelfTest();
|
||||||
switch (res) {
|
switch (selfTestStatus) {
|
||||||
case emsha::EMSHA_ROK:
|
case emsha::EMSHA_ROK:
|
||||||
cout << "PASSED: SHA-256 self test" << endl;
|
cout << "PASSED: SHA-256 self test\n";
|
||||||
break;
|
break;
|
||||||
case emsha::EMSHA_TEST_FAILURE:
|
case emsha::EMSHA_TEST_FAILURE:
|
||||||
cout << "FAILED: SHA-256 self test (test failure)" << endl;
|
cout << "FAILED: SHA-256 self test (test failure)\n";
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
cout << "FAILED: SHA-256 self test (fault " << res << ")"
|
cout << "FAILED: SHA-256 self test (fault " << selfTestStatus << ")\n";
|
||||||
<< endl;
|
|
||||||
}
|
}
|
||||||
|
assert(selfTestStatus == emsha::EMSHA_ROK);
|
||||||
#endif
|
#endif
|
||||||
res = run_hash_tests(const_cast<hash_test *>(golden_tests),
|
|
||||||
sizeof golden_tests / sizeof golden_tests[0],
|
|
||||||
"golden tests");
|
auto res = runHashTests(static_cast<const hashTest *>(goldenTests),
|
||||||
if (-1 == res) {
|
numGoldenTests, labelGoldenTests);
|
||||||
|
if (res == -1) {
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -28,7 +28,7 @@
|
||||||
#include <iostream>
|
#include <iostream>
|
||||||
#include <string>
|
#include <string>
|
||||||
|
|
||||||
#include "test_utils.hh"
|
#include "test_utils.h"
|
||||||
|
|
||||||
using std::uint8_t;
|
using std::uint8_t;
|
||||||
using std::uint32_t;
|
using std::uint32_t;
|
||||||
|
|
@ -39,14 +39,14 @@ using std::endl;
|
||||||
|
|
||||||
|
|
||||||
void
|
void
|
||||||
dump_hexstring(string& hs, uint8_t *s, uint32_t sl)
|
DumpHexString(std::string& hs, uint8_t *s, uint32_t sl)
|
||||||
{
|
{
|
||||||
uint32_t bl = (2 * sl) + 1;
|
uint32_t const bl = (2 * sl) + 1;
|
||||||
char *buf = new char[bl];
|
char *buf = new char[bl];
|
||||||
string tmp;
|
string tmp;
|
||||||
|
|
||||||
memset(buf, 0, bl);
|
memset(buf, 0, bl);
|
||||||
emsha::hexstring((uint8_t *)buf, s, sl);
|
emsha::HexString(reinterpret_cast<uint8_t *>(buf), s, sl);
|
||||||
tmp = string(buf);
|
tmp = string(buf);
|
||||||
hs.swap(tmp);
|
hs.swap(tmp);
|
||||||
delete[] buf;
|
delete[] buf;
|
||||||
|
|
@ -54,25 +54,25 @@ dump_hexstring(string& hs, uint8_t *s, uint32_t sl)
|
||||||
|
|
||||||
|
|
||||||
emsha::EMSHA_RESULT
|
emsha::EMSHA_RESULT
|
||||||
run_hmac_test(struct hmac_test test, string label)
|
runHMACTest(const struct hmacTest test, const string& label)
|
||||||
{
|
{
|
||||||
emsha::HMAC h(test.key, test.keylen);
|
emsha::HMAC h(test.key, test.keylen);
|
||||||
emsha::EMSHA_RESULT res;
|
emsha::EMSHA_RESULT res;
|
||||||
uint8_t dig[emsha::SHA256_HASH_SIZE];
|
uint8_t dig[emsha::SHA256_HASH_SIZE];
|
||||||
string hs = "";
|
string hs;
|
||||||
|
|
||||||
res = h.update((uint8_t *)test.input.c_str(), test.input.size());
|
res = h.Update((uint8_t *)test.input.c_str(), test.input.size());
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
||||||
res = h.result(dig);
|
res = h.Result(dig);
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
dump_hexstring(hs, dig, emsha::SHA256_HASH_SIZE);
|
DumpHexString(hs, dig, emsha::SHA256_HASH_SIZE);
|
||||||
if (hs != test.output) {
|
if (hs != test.output) {
|
||||||
res = emsha::EMSHA_TEST_FAILURE;
|
res = emsha::EMSHA_TEST_FAILURE;
|
||||||
goto exit;
|
goto exit;
|
||||||
|
|
@ -81,20 +81,20 @@ run_hmac_test(struct hmac_test test, string label)
|
||||||
}
|
}
|
||||||
|
|
||||||
// Ensure that a reset and update gives the same results.
|
// Ensure that a reset and update gives the same results.
|
||||||
h.reset();
|
h.Reset();
|
||||||
|
|
||||||
res = h.update((uint8_t *)test.input.c_str(), test.input.size());
|
res = h.Update((uint8_t *)test.input.c_str(), test.input.size());
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
||||||
res = h.result(dig);
|
res = h.Result(dig);
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
dump_hexstring(hs, dig, emsha::SHA256_HASH_SIZE);
|
DumpHexString(hs, dig, emsha::SHA256_HASH_SIZE);
|
||||||
if (hs != test.output) {
|
if (hs != test.output) {
|
||||||
res = emsha::EMSHA_TEST_FAILURE;
|
res = emsha::EMSHA_TEST_FAILURE;
|
||||||
goto exit;
|
goto exit;
|
||||||
|
|
@ -103,7 +103,7 @@ run_hmac_test(struct hmac_test test, string label)
|
||||||
}
|
}
|
||||||
|
|
||||||
// Test that the single-pass function works.
|
// Test that the single-pass function works.
|
||||||
res = emsha::compute_hmac(test.key, test.keylen,
|
res = emsha::ComputeHMAC(test.key, test.keylen,
|
||||||
(uint8_t *)test.input.c_str(), test.input.size(),
|
(uint8_t *)test.input.c_str(), test.input.size(),
|
||||||
dig);
|
dig);
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
|
|
@ -111,7 +111,7 @@ run_hmac_test(struct hmac_test test, string label)
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
dump_hexstring(hs, dig, emsha::SHA256_HASH_SIZE);
|
DumpHexString(hs, dig, emsha::SHA256_HASH_SIZE);
|
||||||
if (hs != test.output) {
|
if (hs != test.output) {
|
||||||
cerr << "(comparing single pass function output)\n";
|
cerr << "(comparing single pass function output)\n";
|
||||||
res = emsha::EMSHA_TEST_FAILURE;
|
res = emsha::EMSHA_TEST_FAILURE;
|
||||||
|
|
@ -134,38 +134,38 @@ exit:
|
||||||
|
|
||||||
|
|
||||||
int
|
int
|
||||||
run_hmac_tests(struct hmac_test *tests, uint32_t ntests, string label)
|
runHMACTests(const struct hmacTest *tests, size_t nTests, const string& label)
|
||||||
{
|
{
|
||||||
for (uint32_t i = 0; i < ntests; i++) {
|
for (uint32_t i = 0; i < nTests; i++) {
|
||||||
if (emsha::EMSHA_ROK != run_hmac_test(*(tests + i), label)) {
|
if (emsha::EMSHA_ROK != runHMACTest(*(tests + i), label)) {
|
||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
cout << "PASSED: " << label << " (" << ntests << ")" << endl;
|
cout << "PASSED: " << label << " (" << nTests << ")" << endl;
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
emsha::EMSHA_RESULT
|
emsha::EMSHA_RESULT
|
||||||
run_hash_test(struct hash_test test, string label)
|
runHashTest(const struct hashTest& test, const string& label)
|
||||||
{
|
{
|
||||||
emsha::SHA256 ctx;
|
emsha::SHA256 ctx;
|
||||||
emsha::EMSHA_RESULT res;
|
emsha::EMSHA_RESULT res;
|
||||||
uint8_t dig[emsha::SHA256_HASH_SIZE];
|
uint8_t dig[emsha::SHA256_HASH_SIZE];
|
||||||
string hs;
|
string hs;
|
||||||
|
|
||||||
res = ctx.update((uint8_t *)test.input.c_str(), test.input.size());
|
res = ctx.Update((uint8_t *)test.input.c_str(), test.input.size());
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
||||||
res = ctx.result(dig);
|
res = ctx.Result(dig);
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
dump_hexstring(hs, dig, emsha::SHA256_HASH_SIZE);
|
DumpHexString(hs, dig, emsha::SHA256_HASH_SIZE);
|
||||||
if (hs != test.output) {
|
if (hs != test.output) {
|
||||||
res = emsha::EMSHA_TEST_FAILURE;
|
res = emsha::EMSHA_TEST_FAILURE;
|
||||||
goto exit;
|
goto exit;
|
||||||
|
|
@ -174,20 +174,20 @@ run_hash_test(struct hash_test test, string label)
|
||||||
}
|
}
|
||||||
|
|
||||||
// Ensure that a reset and update gives the same results.
|
// Ensure that a reset and update gives the same results.
|
||||||
ctx.reset();
|
ctx.Reset();
|
||||||
|
|
||||||
res = ctx.update((uint8_t *)test.input.c_str(), test.input.size());
|
res = ctx.Update((uint8_t *)test.input.c_str(), test.input.size());
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
for (uint32_t n = 0; n < RESULT_ITERATIONS; n++) {
|
||||||
res = ctx.result(dig);
|
res = ctx.Result(dig);
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
dump_hexstring(hs, dig, emsha::SHA256_HASH_SIZE);
|
DumpHexString(hs, dig, emsha::SHA256_HASH_SIZE);
|
||||||
if (hs != test.output) {
|
if (hs != test.output) {
|
||||||
res = emsha::EMSHA_TEST_FAILURE;
|
res = emsha::EMSHA_TEST_FAILURE;
|
||||||
goto exit;
|
goto exit;
|
||||||
|
|
@ -196,14 +196,14 @@ run_hash_test(struct hash_test test, string label)
|
||||||
}
|
}
|
||||||
|
|
||||||
// Test that the single-pass function works.
|
// Test that the single-pass function works.
|
||||||
res = emsha::sha256_digest((uint8_t *)test.input.c_str(),
|
res = emsha::sha256Digest((uint8_t *) test.input.c_str(),
|
||||||
test.input.size(), dig);
|
test.input.size(), dig);
|
||||||
if (emsha::EMSHA_ROK != res) {
|
if (emsha::EMSHA_ROK != res) {
|
||||||
cerr << "(running single pass function test)\n";
|
cerr << "(running single pass function test)\n";
|
||||||
goto exit;
|
goto exit;
|
||||||
}
|
}
|
||||||
|
|
||||||
dump_hexstring(hs, dig, emsha::SHA256_HASH_SIZE);
|
DumpHexString(hs, dig, emsha::SHA256_HASH_SIZE);
|
||||||
if (hs != test.output) {
|
if (hs != test.output) {
|
||||||
cerr << "(comparing single pass function output)\n";
|
cerr << "(comparing single pass function output)\n";
|
||||||
res = emsha::EMSHA_TEST_FAILURE;
|
res = emsha::EMSHA_TEST_FAILURE;
|
||||||
|
|
@ -224,10 +224,10 @@ exit:
|
||||||
|
|
||||||
|
|
||||||
int
|
int
|
||||||
run_hash_tests(struct hash_test *tests, uint32_t ntests, string label)
|
runHashTests(const struct hashTest *tests, const size_t ntests, const string& label)
|
||||||
{
|
{
|
||||||
for (uint32_t i = 0; i < ntests; i++) {
|
for (uint32_t i = 0; i < ntests; i++) {
|
||||||
if (emsha::EMSHA_ROK != run_hash_test(*(tests + i), label)) {
|
if (emsha::EMSHA_ROK != runHashTest(*(tests + i), label)) {
|
||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
@ -284,7 +284,7 @@ write_hex_char(uint8_t *dest, uint8_t src)
|
||||||
|
|
||||||
|
|
||||||
void
|
void
|
||||||
hexstring(uint8_t *dest, uint8_t *src, uint32_t srclen)
|
HexString(uint8_t *dest, uint8_t *src, uint32_t srclen)
|
||||||
{
|
{
|
||||||
uint8_t *dp = dest;
|
uint8_t *dp = dest;
|
||||||
|
|
||||||
|
|
@ -30,9 +30,9 @@
|
||||||
#include <cstdint>
|
#include <cstdint>
|
||||||
#include <string>
|
#include <string>
|
||||||
|
|
||||||
#include <emsha/emsha.hh>
|
#include <emsha/emsha.h>
|
||||||
#include <emsha/sha256.hh>
|
#include <emsha/sha256.h>
|
||||||
#include <emsha/hmac.hh>
|
#include <emsha/hmac.h>
|
||||||
|
|
||||||
|
|
||||||
// How many times should a test result be checked? The goal is to
|
// How many times should a test result be checked? The goal is to
|
||||||
|
|
@ -44,13 +44,13 @@ constexpr uint32_t RESULT_ITERATIONS = 5;
|
||||||
|
|
||||||
// Test data structures.
|
// Test data structures.
|
||||||
|
|
||||||
struct hash_test {
|
struct hashTest {
|
||||||
std::string output;
|
std::string output;
|
||||||
std::string input;
|
std::string input;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
||||||
struct hmac_test {
|
struct hmacTest {
|
||||||
std::uint8_t key[256];
|
std::uint8_t key[256];
|
||||||
std::uint32_t keylen;
|
std::uint32_t keylen;
|
||||||
std::string input;
|
std::string input;
|
||||||
|
|
@ -59,20 +59,20 @@ struct hmac_test {
|
||||||
|
|
||||||
|
|
||||||
// General-purpose debuggery.
|
// General-purpose debuggery.
|
||||||
void dump_hexstring(std::string&, std::uint8_t *, std::uint32_t);
|
void DumpHexString(std::string&, std::uint8_t *, std::uint32_t);
|
||||||
void dump_pair(std::uint8_t *, std::uint8_t *);
|
void dump_pair(std::uint8_t *, std::uint8_t *);
|
||||||
|
|
||||||
|
|
||||||
// SHA-256 testing functions.
|
// SHA-256 testing functions.
|
||||||
emsha::EMSHA_RESULT run_hash_test(struct hash_test, std::string);
|
emsha::EMSHA_RESULT runHashTest(const struct hashTest& test, const std::string& label);
|
||||||
int run_hash_tests(struct hash_test *, std::uint32_t,
|
int runHashTests(const struct hashTest *tests, const std::size_t nTests,
|
||||||
std::string);
|
const std::string& label);
|
||||||
|
|
||||||
|
|
||||||
// HMAC-SHA-256 testery.
|
// HMAC-SHA-256 testery.
|
||||||
emsha::EMSHA_RESULT run_hmac_test(struct hmac_test, std::string);
|
emsha::EMSHA_RESULT runHMACTest(struct hmacTest test, const std::string& label);
|
||||||
int run_hmac_tests(struct hmac_test *, std::uint32_t,
|
int runHMACTests(const struct hmacTest *tests, std::size_t nTests,
|
||||||
std::string);
|
const std::string& label);
|
||||||
|
|
||||||
|
|
||||||
#ifdef EMSHA_NO_HEXSTRING
|
#ifdef EMSHA_NO_HEXSTRING
|
||||||
Loading…
Reference in New Issue