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Merge pull request #13 from easyops-cn/exports

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export sm2.CalculateZA()
This commit is contained in:
Sun Yimin 2022-01-12 08:35:17 +08:00 committed by GitHub
commit 8fb040cb46
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1 changed files with 6 additions and 1 deletions
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sm2/sm2.go
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@ -571,7 +571,7 @@ func fermatInverse(k, N *big.Int) *big.Int {
// returns the signature as a pair of integers. The security of the private key // returns the signature as a pair of integers. The security of the private key
// depends on the entropy of rand. // depends on the entropy of rand.
// Backgroud: https://github.com/golang/go/commit/a8049f58f9e3336554da1b0a4f8ea3b9c5cd669c // Backgroud: https://github.com/golang/go/commit/a8049f58f9e3336554da1b0a4f8ea3b9c5cd669c
// //
func Sign(rand io.Reader, priv *ecdsa.PrivateKey, hash []byte) (r, s *big.Int, err error) { func Sign(rand io.Reader, priv *ecdsa.PrivateKey, hash []byte) (r, s *big.Int, err error) {
if !strings.EqualFold(priv.Params().Name, P256().Params().Name) { if !strings.EqualFold(priv.Params().Name, P256().Params().Name) {
return ecdsa.Sign(rand, priv, hash) return ecdsa.Sign(rand, priv, hash)
@ -661,6 +661,11 @@ func signGeneric(priv *ecdsa.PrivateKey, csprng *cipher.StreamReader, hash []byt
var defaultUID = []byte{0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38} var defaultUID = []byte{0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38}
// CalculateZA ZA = H256(ENTLA || IDA || a || b || xG || yG || xA || yA)
func CalculateZA(pub *ecdsa.PublicKey, uid []byte) ([]byte, error) {
return calculateZA(pub, uid)
}
// calculateZA ZA = H256(ENTLA || IDA || a || b || xG || yG || xA || yA) // calculateZA ZA = H256(ENTLA || IDA || a || b || xG || yG || xA || yA)
func calculateZA(pub *ecdsa.PublicKey, uid []byte) ([]byte, error) { func calculateZA(pub *ecdsa.PublicKey, uid []byte) ([]byte, error) {
uidLen := len(uid) uidLen := len(uid)