public interface ICryptoTransform : IDisposable {
// Public Instance Properties
   public bool CanReuseTransform{get; }
   public bool CanTransformMultipleBlocks{get; }
   public int InputBlockSize{get; }
   public int OutputBlockSize{get; }
// Public Instance Methods
   public int TransformBlock(byte[  ] inputBuffer, int inputOffset, int inputCount, 
       byte[  ] outputBuffer, int outputOffset);
   public byte[  ] TransformFinalBlock(byte[  ] inputBuffer, int inputOffset, int inputCount);
}

The ICryptoTransform interface defines the basic operations of a symmetric block cipher, and is used in conjunction with the CryptoStream class to transform data. Implementations of this interface are most commonly obtained through the SymmetricAlgorithm.CreateEncryptor( ) and SymmetricAlgorithm.CreateDecryptor( ) methods.

Implemented By

CryptoAPITransform, FromBase64Transform, HashAlgorithm, ToBase64Transform

Returned By

SymmetricAlgorithm.{CreateDecryptor( ), CreateEncryptor( )}

Passed To

CryptoStream.CryptoStream( )