System.Security.Cryptography.RSAImplementation.RSAOpenSsl.SignHash C# (CSharp) Метод

        private byte[] SignHash(byte[] hash, HashAlgorithmName hashAlgorithmName)
        {
            int algorithmNid = GetAlgorithmNid(hashAlgorithmName);
            SafeRsaHandle rsa = _key.Value;
            byte[] signature = new byte[Interop.Crypto.RsaSize(rsa)];
            int signatureSize;

            bool success = Interop.Crypto.RsaSign(
                algorithmNid,
                hash,
                hash.Length,
                signature,
                out signatureSize,
                rsa);

            if (!success)
            {
                throw Interop.Crypto.CreateOpenSslCryptographicException();
            }

            Debug.Assert(
                signatureSize == signature.Length,
                "RSA_sign reported an unexpected signature size",
                "RSA_sign reported signatureSize was {0}, when {1} was expected",
                signatureSize,
                signature.Length);

            return signature;
        }