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1 /**
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2 * This file is part of the dcrypt project.
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3 *
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4 * Copyright: Copyright (C) dcrypt contributors 2008. All rights reserved.
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5 * License: MIT
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6 * Authors: Thomas Dixon
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7 */
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8
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9 module dcrypt.crypto.BlockCipher;
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10
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11 public import dcrypt.crypto.Cipher;
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12 public import dcrypt.crypto.params.SymmetricKey;
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13
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14 /** Interface for a standard block cipher. */
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15 abstract class BlockCipher : Cipher {
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16
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17 /** Returns: The block size in bytes that this cipher will operate on. */
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18 uint blockSize();
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19
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20 /**
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21 * Process a block of data from the input array
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22 * and place it into the output array.
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23 *
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24 * Params:
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25 * input_ = Array containing input data.
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26 * inOff = Offset at where the data in input_ starts.
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27 * output_ = Array which will hold the output data.
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28 * outOff = Offset at which to begin placing data in output_.
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29 *
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30 * Returns: The number of bytes processed (typically blockSize).
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31 *
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32 * Throws: dcrypt.crypto.errors.NotInitializedError if cipher
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33 * was not initialized.
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34 */
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35 uint processBlock(void[] input_,
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36 uint inOff, void[] output_, uint outOff);
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37
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38 }
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