System.Security.Cryptography.RSAPKCS1KeyExchangeFormatter.CreateKeyExchange C# (CSharp) Method

        public override byte[] CreateKeyExchange(byte[] rgbData)
        {
            if (_rsaKey == null)
                throw new CryptographicUnexpectedOperationException(SR.Cryptography_MissingKey);

            return _rsaKey.Encrypt(rgbData, RSAEncryptionPadding.Pkcs1);
        }

		public override void GenerateClient (TlsContext ctx)
		{
			// Compute pre master secret
			using (var preMasterSecret = ctx.Session.GetSecureRandomBytes (48)) {
				preMasterSecret.Buffer [0] = (byte)((short)ctx.Configuration.RequestedProtocol >> 8);
				preMasterSecret.Buffer [1] = (byte)ctx.Configuration.RequestedProtocol;

				RSA rsa = null;
				// Create a new RSA key
				var serverCertificates = ctx.Session.PendingCrypto.ServerCertificates;
				if (serverCertificates == null || serverCertificates.Count == 0) {
					// FIXME: Should have received ServerKeyExchange message.
					throw new TlsException (AlertDescription.IlegalParameter);
				} else {
					rsa = new RSAManaged (serverCertificates [0].RSA.KeySize);
					rsa.ImportParameters (serverCertificates [0].RSA.ExportParameters (false));
				}

				ComputeMasterSecret (ctx, preMasterSecret);

				// Encrypt premaster_sercret
				var formatter = new RSAPKCS1KeyExchangeFormatter (rsa);
				encryptedPreMasterSecret = formatter.CreateKeyExchange (preMasterSecret.Buffer);
				rsa.Clear ();
			}
		}