46 lines
1.8 KiB
C#
46 lines
1.8 KiB
C#
using System;
|
|
|
|
namespace Org.BouncyCastle.Crypto
|
|
{
|
|
/// <summary>The interface stream ciphers conform to.</summary>
|
|
public interface IStreamCipher
|
|
{
|
|
/// <summary>The name of the algorithm this cipher implements.</summary>
|
|
string AlgorithmName { get; }
|
|
|
|
/// <summary>Initialise the cipher.</summary>
|
|
/// <param name="forEncryption">If true the cipher is initialised for encryption,
|
|
/// if false for decryption.</param>
|
|
/// <param name="parameters">The key and other data required by the cipher.</param>
|
|
/// <exception cref="ArgumentException">
|
|
/// If the parameters argument is inappropriate.
|
|
/// </exception>
|
|
void Init(bool forEncryption, ICipherParameters parameters);
|
|
|
|
/// <summary>encrypt/decrypt a single byte returning the result.</summary>
|
|
/// <param name="input">the byte to be processed.</param>
|
|
/// <returns>the result of processing the input byte.</returns>
|
|
byte ReturnByte(byte input);
|
|
|
|
/// <summary>
|
|
/// Process a block of bytes from <c>input</c> putting the result into <c>output</c>.
|
|
/// </summary>
|
|
/// <param name="input">The input byte array.</param>
|
|
/// <param name="inOff">
|
|
/// The offset into <c>input</c> where the data to be processed starts.
|
|
/// </param>
|
|
/// <param name="length">The number of bytes to be processed.</param>
|
|
/// <param name="output">The output buffer the processed bytes go into.</param>
|
|
/// <param name="outOff">
|
|
/// The offset into <c>output</c> the processed data starts at.
|
|
/// </param>
|
|
/// <exception cref="DataLengthException">If the output buffer is too small.</exception>
|
|
void ProcessBytes(byte[] input, int inOff, int length, byte[] output, int outOff);
|
|
|
|
/// <summary>
|
|
/// Reset the cipher to the same state as it was after the last init (if there was one).
|
|
/// </summary>
|
|
void Reset();
|
|
}
|
|
}
|