示例#1
0
        public void Sign(Ed448.Algorithm algorithm, byte[] ctx, byte[] msg, int msgOff, int msgLen,
                         byte[] sig, int sigOff)
        {
            Ed448PublicKeyParameters publicKey = GeneratePublicKey();

            byte[] pk = new byte[Ed448.PublicKeySize];
            publicKey.Encode(pk, 0);

            switch (algorithm)
            {
            case Ed448.Algorithm.Ed448:
            {
                Ed448.Sign(data, 0, pk, 0, ctx, msg, msgOff, msgLen, sig, sigOff);
                break;
            }

            case Ed448.Algorithm.Ed448ph:
            {
                if (Ed448.PrehashSize != msgLen)
                {
                    throw new ArgumentException("msgLen");
                }

                Ed448.SignPrehash(data, 0, pk, 0, ctx, msg, msgOff, sig, sigOff);
                break;
            }

            default:
            {
                throw new ArgumentException("algorithm");
            }
            }
        }
示例#2
0
        public Ed448PublicKeyParameters GeneratePublicKey()
        {
            lock (data)
            {
                if (null == cachedPublicKey)
                {
                    byte[] publicKey = new byte[Ed448.PublicKeySize];
                    Ed448.GeneratePublicKey(data, 0, publicKey, 0);
                    cachedPublicKey = new Ed448PublicKeyParameters(publicKey, 0);
                }

                return(cachedPublicKey);
            }
        }
示例#3
0
 public void Sign(Ed448.Algorithm algorithm, Ed448PublicKeyParameters publicKey, byte[] ctx, byte[] msg, int msgOff, int msgLen,
                  byte[] sig, int sigOff)
 {
     Sign(algorithm, ctx, msg, msgOff, msgLen, sig, sigOff);
 }