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added sig types

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This commit is contained in:
Haris Khan
2024-11-15 11:14:05 -05:00
parent 2ee2d77d7c
commit d40b3e0cd3
1 changed files with 27 additions and 5 deletions
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32
lib/common/signature/signature.go
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@ -23,6 +23,19 @@ const (
RedDSA_SHA512_Ed25519_SIZE = 64
)
const (
SIGNATURE_TYPE_DSA_SHA1 = 0
SIGNATURE_TYPE_ECDSA_SHA256_P256 = 1
SIGNATURE_TYPE_ECDSA_SHA384_P384 = 2
SIGNATURE_TYPE_ECDSA_SHA512_P521 = 3
SIGNATURE_TYPE_RSA_SHA256_2048 = 4
SIGNATURE_TYPE_RSA_SHA384_3072 = 5
SIGNATURE_TYPE_RSA_SHA512_4096 = 6
SIGNATURE_TYPE_EDDSA_SHA512_ED25519 = 7
SIGNATURE_TYPE_EDDSA_SHA512_ED25519PH = 8
SIGNATURE_TYPE_REDDSA_SHA512_ED25519 = 11
)
/*
[Signature]
Accurate for version 0.9.49
@ -50,9 +63,18 @@ type Signature []byte
//
// If a different signature type is expected based on context, this function should be
// modified accordingly to handle the correct signature length.
func ReadSignature(data []byte) (sig Signature, remainder []byte, err error) {
// Assume the default signature type DSA_SHA1 with length 40 bytes
sigLength := DSA_SHA1_SIZE
func ReadSignature(data []byte, sigType int) (sig Signature, remainder []byte, err error) {
var sigLength int
switch sigType {
case SIGNATURE_TYPE_DSA_SHA1:
sigLength = DSA_SHA1_SIZE
case SIGNATURE_TYPE_EDDSA_SHA512_ED25519:
sigLength = EdDSA_SHA512_Ed25519_SIZE
default:
err = fmt.Errorf("unsupported signature type: %d", sigType)
return
}
if len(data) < sigLength {
err = fmt.Errorf("insufficient data to read signature: need %d bytes, have %d", sigLength, len(data))
log.WithError(err).Error("Failed to read Signature")
@ -65,9 +87,9 @@ func ReadSignature(data []byte) (sig Signature, remainder []byte, err error) {
// NewSignature creates a new *Signature from []byte using ReadSignature.
// Returns a pointer to Signature unlike ReadSignature.
func NewSignature(data []byte) (signature *Signature, remainder []byte, err error) {
func NewSignature(data []byte, sigType int) (signature *Signature, remainder []byte, err error) {
log.WithField("input_length", len(data)).Debug("Creating new Signature")
sig, remainder, err := ReadSignature(data)
sig, remainder, err := ReadSignature(data, sigType)
if err != nil {
log.WithError(err).Error("Failed to read Signature")
return nil, remainder, err