Mercurial > projects > dcrypt
view dcrypt/crypto/Cipher.d @ 36:fc97fffd106d default tip
Added tag 0.1 for changeset 6b2c35b84186
author | Thomas Dixon <reikon@reikon.us> |
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date | Thu, 14 May 2009 17:46:46 -0400 |
parents | 2b4bccdc8387 |
children |
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/** * This file is part of the dcrypt project. * * Copyright: Copyright (C) dcrypt contributors 2008. All rights reserved. * License: MIT * Authors: Thomas Dixon */ module dcrypt.crypto.Cipher; public import dcrypt.crypto.errors.InvalidKeyError; public import dcrypt.crypto.errors.ShortBufferError; public import dcrypt.crypto.errors.NotInitializedError; public import dcrypt.crypto.errors.InvalidParameterError; public import dcrypt.crypto.params.CipherParameters; /** Base symmetric cipher class */ abstract class Cipher { static const bool ENCRYPT = true, DECRYPT = false; protected bool _initialized, _encrypt; /** * Initialize a cipher. * * Params: * encrypt = True if we are encrypting. * params = Parameters to be passed to the cipher. (Key, rounds, etc.) */ void init(bool encrypt, CipherParameters params); /** * Process a block of plaintext data from the input array * and place it in the output array. * * Params: * input_ = Array containing input data. * output_ = Array to hold the output data. * * Returns: The amount of encrypted data processed. */ uint update(void[] input_, void[] output_); /** Play nice with D2's idea of const. */ version (D_Version2) { uint update(string input_, void[] output_) { return update(cast(ubyte[])input_, output_); } } /** Returns: The name of the algorithm of this cipher. */ string name(); /** Returns: Whether or not the cipher has been initialized. */ bool initialized() { return _initialized; } /** Reset cipher to its state immediately subsequent the last init. */ void reset(); }