Granados.PKI.RSAPublicKey.VerifyWithSHA1 C# (CSharp) Method

        public void VerifyWithSHA1(byte[] data, byte[] expected)
        {
            BigInteger result = VerifyBI(data);
            byte[] finaldata = RSAUtil.StripPKCS1Pad(result, 1).GetBytes();

            if (finaldata.Length != PKIUtil.SHA1_ASN_ID.Length + expected.Length)
                throw new VerifyException("result is too short");
            else {
                byte[] r = new byte[finaldata.Length];
                Array.Copy(PKIUtil.SHA1_ASN_ID, 0, r, 0, PKIUtil.SHA1_ASN_ID.Length);
                Array.Copy(expected, 0, r, PKIUtil.SHA1_ASN_ID.Length, expected.Length);
                if (!SSHUtil.ByteArrayEqual(r, finaldata)) {
                    throw new VerifyException("failed to verify");
                }
            }
        }

        private void VerifyHostKeyByRSA(SSH2DataReader pubkey, byte[] sigbody, byte[] hash)
        {
            BigInteger exp = pubkey.ReadMPInt();
            BigInteger mod = pubkey.ReadMPInt();
            Debug.Assert(pubkey.Rest==0);

            //Debug.WriteLine(exp.ToHexString());
            //Debug.WriteLine(mod.ToHexString());

            RSAPublicKey pk = new RSAPublicKey(exp, mod);
            pk.VerifyWithSHA1(sigbody, new SHA1CryptoServiceProvider().ComputeHash(hash));
            _cInfo._hostkey = pk;
        }