Mercurial > projects > dcrypt
view dcrypt/crypto/BlockCipherPadding.d @ 0:0e08791a1418
Initial import.
author | Thomas Dixon <reikon@reikon.us> |
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date | Sun, 10 Aug 2008 14:20:17 -0400 |
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children | cd376996cdb3 |
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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(); /** * Pad the (last) block of plaintext to block length. * * Params: * input_ = Plaintext block to be padded. * inOffset = Offset at which to begin padding input_. * * Returns: The number of padding bytes added. */ uint padBlock(void[] input_, uint inOff); /** * 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 padLength(void[] input_); }