diff options
| -rw-r--r-- | rsa.go | 14 |
1 files changed, 12 insertions, 2 deletions
@@ -47,7 +47,12 @@ func (pr *RsaPrivateKey) Public() PublicKey { } func (pr RsaPrivateKey) Sign(message []byte, hash crypto.Hash) ([]byte, error) { - return make([]byte, 0), errors.New("not implemented yet!") + if !hash.Available() { + return make([]byte, 0), errors.New("Hash method is not available!") + } + hashed_message := hash.New() + hashed_message.Write(message) + return rsa.SignPKCS1v15(rand.Reader, pr.private_key, hash, hashed_message.Sum(nil)) } // get the private key @@ -84,5 +89,10 @@ func (pu *RsaPublicKey) MarshalPem() (io.WriterTo, error) { // verify a message with a signature using the public key func (pu *RsaPublicKey) Verify(message []byte, signature []byte, hash crypto.Hash) (bool, error) { - return false, errors.New("not implemented yet!") + hashed_message := hash.New() + hashed_message.Write(message) + if err := rsa.VerifyPKCS1v15(pu.public_key, hash, hashed_message.Sum(nil), signature); err != nil { + return false, err + } + return true, nil } |