ICryptoTransform.cs

using System.Runtime.InteropServices;

namespace System.Security.Cryptography
{
    [ComVisible(true)]
    public interface ICryptoTransform : IDisposable
    {
        int InputBlockSize
        {
            get;
        }

        int OutputBlockSize
        {
            get;
        }

        bool CanTransformMultipleBlocks
        {
            get;
        }

        bool CanReuseTransform
        {
            get;
        }

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

        byte[] TransformFinalBlock(byte[] inputBuffer, int inputOffset, int inputCount);
    }
}