System.Security.Cryptography.HashAlgorithm.TransformBlock C# (CSharp) Метод

        public int TransformBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
        {
            ValidateTransformBlock(inputBuffer, inputOffset, inputCount);

            // Change the State value
            State = 1;

            HashCore(inputBuffer, inputOffset, inputCount);
            if ((outputBuffer != null) && ((inputBuffer != outputBuffer) || (inputOffset != outputOffset)))
            {
                // We let BlockCopy do the destination array validation
                Buffer.BlockCopy(inputBuffer, inputOffset, outputBuffer, outputOffset, inputCount);
            }
            return inputCount;
        }

 public void ComputeHash(HashAlgorithm hash)
 {
     byte[] tmp = Encoding.UTF8.GetBytes (_name);
     hash.TransformBlock (tmp, 0, tmp.Length, null, 0);
     tmp = Encoding.UTF8.GetBytes (_body);
     hash.TransformBlock (tmp, 0, tmp.Length, null, 0);
 }