commit
e27a6fed94
|
@ -0,0 +1,21 @@
|
|||
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 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.
|
|
@ -0,0 +1,27 @@
|
|||
ACLOCAL_AMFLAGS = -I m4
|
||||
SUBDIRS = doc src
|
||||
|
||||
TESTS = src/emsha_core_test \
|
||||
src/emsha_sha256_test \
|
||||
src/emsha_hmac_test \
|
||||
src/emsha_mem_test \
|
||||
src/emsha_static_mem_test
|
||||
|
||||
dist_data_DATA = LICENSE \
|
||||
README.rst
|
||||
dist_noinst_DATA = autobuild \
|
||||
doc/sphinx/source \
|
||||
doc/sphinx/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 $@
|
||||
|
|
@ -0,0 +1,61 @@
|
|||
libemsha
|
||||
========
|
||||
|
||||
This library is an MIT-licensed 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. It was written in
|
||||
response to a need for a standalone HMAC-SHA-256 package that could run
|
||||
on several platforms.
|
||||
|
||||
|
||||
-------------------------------
|
||||
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 ``configure`` (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.
|
||||
|
||||
|
||||
-------------
|
||||
Documentation
|
||||
-------------
|
||||
|
||||
Documentation is currently done with `Sphinx <http://sphinx-doc.org/>`_.
|
||||
See ``doc/sphinx/``.
|
||||
|
||||
|
||||
See also
|
||||
--------
|
||||
|
||||
+ `FIPS 180-4, FIPS 198-1 <http://csrc.nist.gov/publications/PubsFIPS.html (FIPS 180-4, FIPS 198-1)>`_
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
====
|
||||
TODO
|
||||
====
|
||||
|
||||
[ ] Documentation for ``HMAC``
|
||||
|
||||
[ ] Documentation for miscellaneous functions
|
||||
|
||||
[ ] Travis with static analysers
|
||||
|
||||
[ ] Coverity?
|
||||
[ ] cppcheck
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
#!/bin/sh
|
||||
|
||||
CXX=g++
|
||||
command -v clang 2>&1 > /dev/null && CXX=clang++
|
||||
[ -d m4 ] || mkdir m4
|
||||
autoreconf -i && ./configure CXX=$CXX && make && make check
|
|
@ -0,0 +1,37 @@
|
|||
#!/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 +1,58 @@
|
|||
AC_PREREQ([2.69])
|
||||
AC_INIT([libemsha],
|
||||
[1.0.0-RC1],
|
||||
[coder@kyleisom.net],
|
||||
[libemsha],
|
||||
[https://kyleisom.net/projects/libemsha/])
|
||||
AM_INIT_AUTOMAKE([1.14 foreign])
|
||||
|
||||
AC_CONFIG_SRCDIR([src/emsha/sha256.hh])
|
||||
AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile doc/sphinx/source/conf.py])
|
||||
AC_CONFIG_MACRO_DIR([m4])
|
||||
|
||||
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 "$SPHINX"])
|
||||
|
||||
AC_OUTPUT
|
|
@ -0,0 +1,5 @@
|
|||
if HAVE_SPHINX
|
||||
|
||||
sphinx-html:
|
||||
cd sphinx/ && make html
|
||||
endif
|
|
@ -0,0 +1,177 @@
|
|||
# Makefile for Sphinx documentation
|
||||
#
|
||||
|
||||
# You can set these variables from the command line.
|
||||
SPHINXOPTS =
|
||||
SPHINXBUILD = sphinx-build
|
||||
PAPER =
|
||||
BUILDDIR = build
|
||||
|
||||
# User-friendly check for sphinx-build
|
||||
ifeq ($(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
|
||||
|
||||
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)"
|
||||
|
||||
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)."
|
||||
|
||||
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."
|
|
@ -0,0 +1,37 @@
|
|||
-------------------------------
|
||||
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.
|
||||
|
|
@ -0,0 +1,335 @@
|
|||
# -*- 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, @PACKAGE_AUTHOR@'
|
||||
|
||||
# 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_NAMEdoc'
|
||||
|
||||
|
||||
# -- 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'@PACKAGE\\_AUTHOR@', '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 = False
|
||||
|
||||
# If true, show URL addresses after external links.
|
||||
#latex_show_urls = False
|
||||
|
||||
# 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'@PACKAGE_AUTHOR@'], 1)
|
||||
]
|
||||
|
||||
# If true, show URL addresses after external links.
|
||||
#man_show_urls = False
|
||||
|
||||
|
||||
# -- 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'@PACKAGE_AUTHOR@', 'PACKAGE_NAME', 'One line description of project.',
|
||||
'Miscellaneous'),
|
||||
]
|
||||
|
||||
# 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'@PACKAGE_AUTHOR@'
|
||||
epub_publisher = u'@PACKAGE_AUTHOR@'
|
||||
epub_copyright = u'2015, @PACKAGE_AUTHOR@'
|
||||
|
||||
# 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
|
|
@ -0,0 +1,74 @@
|
|||
------------------
|
||||
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.
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
--------------
|
||||
The HMAC class
|
||||
--------------
|
|
@ -0,0 +1,34 @@
|
|||
.. 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
|
||||
========
|
||||
|
||||
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.
|
||||
|
||||
Contents:
|
||||
|
||||
.. toctree::
|
||||
:maxdepth: 2
|
||||
|
||||
building
|
||||
intro
|
||||
hash
|
||||
sha256
|
||||
hmac
|
||||
misc
|
||||
|
||||
|
||||
|
||||
|
||||
Indices and tables
|
||||
==================
|
||||
|
||||
* :ref:`genindex`
|
||||
* :ref:`modindex`
|
||||
* :ref:`search`
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
-------------
|
||||
Introduction
|
||||
-------------
|
||||
|
||||
.. 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`
|
||||
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
-----------------------
|
||||
Miscellaneous functions
|
||||
-----------------------
|
||||
|
|
@ -0,0 +1,111 @@
|
|||
-----------------
|
||||
The SHA256 class
|
||||
-----------------
|
||||
|
||||
.. cpp:class:: emsha::SHA256
|
||||
|
||||
SHA256 is an implementation of the :cpp:class:`emsha::Hash`
|
||||
interface.
|
||||
|
||||
.. 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``.
|
||||
|
|
@ -0,0 +1,82 @@
|
|||
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
|
||||
|
||||
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
|
||||
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 is a statically compiled (e.g. not libtool'd)
|
||||
# test program whose stack can be more accurately measured.
|
||||
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_mem_test is a statically compiled (e.g. not libtool'd)
|
||||
# test program whose stack can be more accurately measured.
|
||||
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
|
||||
|
||||
|
||||
.PHONY: valgrind-check
|
||||
valgrind-check: emsha_static_mem_test
|
||||
valgrind --tool=massif -v emsha_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)
|
||||
|
||||
|
|
@ -0,0 +1,146 @@
|
|||
/*
|
||||
* 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 <iostream>
|
||||
|
||||
#include <emsha/emsha.hh>
|
||||
|
||||
|
||||
using std::uint8_t;
|
||||
using std::uint32_t;
|
||||
using std::cout;
|
||||
using std::endl;
|
||||
|
||||
|
||||
namespace emsha {
|
||||
|
||||
|
||||
Hash::~Hash()
|
||||
{
|
||||
// Nothing to see here.
|
||||
}
|
||||
|
||||
|
||||
bool
|
||||
hash_equal(const uint8_t *a, const uint8_t *b)
|
||||
{
|
||||
uint8_t res = 0;
|
||||
|
||||
EMSHA_CHECK(a != NULL, false);
|
||||
EMSHA_CHECK(b != NULL, false);
|
||||
|
||||
for (uint32_t i = 0; i < SHA256_HASH_SIZE; i++) {
|
||||
res = a[i] ^ b[i];
|
||||
}
|
||||
|
||||
return res == 0;
|
||||
}
|
||||
|
||||
|
||||
#ifndef EMSHA_NO_HEXSTRING
|
||||
#ifndef EMSHA_NO_HEXLUT
|
||||
// If using a lookup table is permitted, then the faster way to do this
|
||||
// is to use one.
|
||||
static void
|
||||
write_hex_char(uint8_t *dest, uint8_t src)
|
||||
{
|
||||
static constexpr uint8_t lut[256][3] = {
|
||||
"00", "01", "02", "03", "04", "05", "06", "07",
|
||||
"08", "09", "0a", "0b", "0c", "0d", "0e", "0f",
|
||||
"10", "11", "12", "13", "14", "15", "16", "17",
|
||||
"18", "19", "1a", "1b", "1c", "1d", "1e", "1f",
|
||||
"20", "21", "22", "23", "24", "25", "26", "27",
|
||||
"28", "29", "2a", "2b", "2c", "2d", "2e", "2f",
|
||||
"30", "31", "32", "33", "34", "35", "36", "37",
|
||||
"38", "39", "3a", "3b", "3c", "3d", "3e", "3f",
|
||||
"40", "41", "42", "43", "44", "45", "46", "47",
|
||||
"48", "49", "4a", "4b", "4c", "4d", "4e", "4f",
|
||||
"50", "51", "52", "53", "54", "55", "56", "57",
|
||||
"58", "59", "5a", "5b", "5c", "5d", "5e", "5f",
|
||||
"60", "61", "62", "63", "64", "65", "66", "67",
|
||||
"68", "69", "6a", "6b", "6c", "6d", "6e", "6f",
|
||||
"70", "71", "72", "73", "74", "75", "76", "77",
|
||||
"78", "79", "7a", "7b", "7c", "7d", "7e", "7f",
|
||||
"80", "81", "82", "83", "84", "85", "86", "87",
|
||||
"88", "89", "8a", "8b", "8c", "8d", "8e", "8f",
|
||||
"90", "91", "92", "93", "94", "95", "96", "97",
|
||||
"98", "99", "9a", "9b", "9c", "9d", "9e", "9f",
|
||||
"a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
|
||||
"a8", "a9", "aa", "ab", "ac", "ad", "ae", "af",
|
||||
"b0", "b1", "b2", "b3", "b4", "b5", "b6", "b7",
|
||||
"b8", "b9", "ba", "bb", "bc", "bd", "be", "bf",
|
||||
"c0", "c1", "c2", "c3", "c4", "c5", "c6", "c7",
|
||||
"c8", "c9", "ca", "cb", "cc", "cd", "ce", "cf",
|
||||
"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
|
||||
"d8", "d9", "da", "db", "dc", "dd", "de", "df",
|
||||
"e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7",
|
||||
"e8", "e9", "ea", "eb", "ec", "ed", "ee", "ef",
|
||||
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
|
||||
"f8", "f9", "fa", "fb", "fc", "fd", "fe", "ff"
|
||||
};
|
||||
|
||||
*dest = lut[src][0];
|
||||
*(dest + 1) = lut[src][1];
|
||||
}
|
||||
|
||||
#else // #ifndef EMSHA_NO_HEXLUT
|
||||
// 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)
|
||||
// lookup table and some bit shifting. On platforms where even this is
|
||||
// too much, the hexstring functionality will just be disabled.
|
||||
static void
|
||||
write_hex_char(uint8_t *dest, uint8_t src)
|
||||
{
|
||||
static constexpr uint8_t lut[] = {
|
||||
'0', '1', '2', '3', '4', '5', '6', '7',
|
||||
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
|
||||
};
|
||||
|
||||
*dest = lut[((src & 0xF0) >> 4)];
|
||||
*(dest + 1) = lut[(src & 0xF)];
|
||||
}
|
||||
|
||||
#endif // #ifndef EMSHA_NO_HEXLUT
|
||||
|
||||
|
||||
void
|
||||
hexstring(uint8_t *dest, uint8_t *src, uint32_t srclen)
|
||||
{
|
||||
uint8_t *dp = dest;
|
||||
|
||||
for (uint32_t i = 0; i < srclen; i++) {
|
||||
write_hex_char(dp, src[i]);
|
||||
dp += 2;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#endif // #ifndef EMSHA_NO_HEXSTRING
|
||||
|
||||
|
||||
} // end of namespace emsha
|
|
@ -0,0 +1,156 @@
|
|||
/*
|
||||
* 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.
|
||||
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
|
|
@ -0,0 +1,197 @@
|
|||
/*
|
||||
* 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
|
||||
< |