Kyle Isom
115f23a3ea
Vendor dependencies and expose control program binaries via nix build. Uses nixpkgs-unstable for Go 1.26 support. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
package jwt
|
|
|
|
import (
|
|
"crypto"
|
|
"crypto/ed25519"
|
|
"crypto/x509"
|
|
"encoding/pem"
|
|
"errors"
|
|
)
|
|
|
|
var (
|
|
ErrNotEdPrivateKey = errors.New("key is not a valid Ed25519 private key")
|
|
ErrNotEdPublicKey = errors.New("key is not a valid Ed25519 public key")
|
|
)
|
|
|
|
// ParseEdPrivateKeyFromPEM parses a PEM-encoded Edwards curve private key
|
|
func ParseEdPrivateKeyFromPEM(key []byte) (crypto.PrivateKey, error) {
|
|
var err error
|
|
|
|
// Parse PEM block
|
|
var block *pem.Block
|
|
if block, _ = pem.Decode(key); block == nil {
|
|
return nil, ErrKeyMustBePEMEncoded
|
|
}
|
|
|
|
// Parse the key
|
|
var parsedKey any
|
|
if parsedKey, err = x509.ParsePKCS8PrivateKey(block.Bytes); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var pkey ed25519.PrivateKey
|
|
var ok bool
|
|
if pkey, ok = parsedKey.(ed25519.PrivateKey); !ok {
|
|
return nil, ErrNotEdPrivateKey
|
|
}
|
|
|
|
return pkey, nil
|
|
}
|
|
|
|
// ParseEdPublicKeyFromPEM parses a PEM-encoded Edwards curve public key
|
|
func ParseEdPublicKeyFromPEM(key []byte) (crypto.PublicKey, error) {
|
|
var err error
|
|
|
|
// Parse PEM block
|
|
var block *pem.Block
|
|
if block, _ = pem.Decode(key); block == nil {
|
|
return nil, ErrKeyMustBePEMEncoded
|
|
}
|
|
|
|
// Parse the key
|
|
var parsedKey any
|
|
if parsedKey, err = x509.ParsePKIXPublicKey(block.Bytes); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var pkey ed25519.PublicKey
|
|
var ok bool
|
|
if pkey, ok = parsedKey.(ed25519.PublicKey); !ok {
|
|
return nil, ErrNotEdPublicKey
|
|
}
|
|
|
|
return pkey, nil
|
|
}
|