System.Net.SecurityStatusAdapterPal.GetSecurityStatusPalFromNativeInt C# (CSharp) Method

        internal static SecurityStatusPal GetSecurityStatusPalFromNativeInt(int win32SecurityStatus)
        {
            return GetSecurityStatusPalFromInterop((Interop.SECURITY_STATUS) win32SecurityStatus);
        }

        public static SecurityStatusPal EncryptMessage(SafeDeleteContext securityContext, byte[] input, int offset, int size, int headerSize, int trailerSize, ref byte[] output, out int resultSize)
        {
            byte[] writeBuffer = output;

            // Copy the input into the output buffer to prepare for SCHANNEL's expectations
            Buffer.BlockCopy(input, offset, writeBuffer, headerSize, size);

            // Encryption using SCHANNEL requires 4 buffers: header, payload, trailer, empty.
            SecurityBuffer[] securityBuffer = new SecurityBuffer[4];

            securityBuffer[0] = new SecurityBuffer(writeBuffer, 0, headerSize, SecurityBufferType.Header);
            securityBuffer[1] = new SecurityBuffer(writeBuffer, headerSize, size, SecurityBufferType.Data);
            securityBuffer[2] = new SecurityBuffer(writeBuffer, headerSize + size, trailerSize, SecurityBufferType.Trailer);
            securityBuffer[3] = new SecurityBuffer(null, SecurityBufferType.Empty);

            int errorCode = SSPIWrapper.EncryptMessage(GlobalSSPI.SSPISecureChannel, securityContext, securityBuffer, 0);

            if (errorCode != 0)
            {
                if (GlobalLog.IsEnabled)
                {
                    GlobalLog.Print("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt ERROR" + errorCode.ToString("x"));
                }
                resultSize = 0;
            }
            else
            {
                // The full buffer may not be used.
                resultSize = securityBuffer[0].size + securityBuffer[1].size + securityBuffer[2].size;
            }

            return(SecurityStatusAdapterPal.GetSecurityStatusPalFromNativeInt(errorCode));
        }