Mercurial > projects > dcrypt
view dcrypt/crypto/BlockCipherPadding.d @ 15:0de48552be35
Added LimitReachedError and PBKDF2. Fixed some errors with the previous commit in PRNGFromHash, etc. Re-implemented HMAC. Changed the name() format of HMAC and PBKDF2.
author | Thomas Dixon <reikon@reikon.us> |
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date | Wed, 19 Nov 2008 19:30:52 -0500 |
parents | cd376996cdb3 |
children | 8b5eaf3c2979 |
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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.BlockCipherPadding; public import dcrypt.crypto.errors.InvalidPaddingError; /** Base padding class for implementing block padding schemes. */ abstract class BlockCipherPadding { /** Returns: The name of the padding scheme implemented. */ char[] name(); /** * Generate padding to a specific length. * * Params: * len = Length of padding to generate * * Returns: The padding bytes to be added. */ ubyte[] pad(uint len); /** * Return the number of pad bytes in the block. * * Params: * input_ = Padded block of which to count the pad bytes. * * Returns: The number of pad bytes in the block. * * Throws: dcrypt.crypto.errors.InvalidPaddingError if * pad length cannot be discerned. */ uint unpad(void[] input_); }