| /** |
| * \file camellia.h |
| * |
| * Copyright (C) 2009 Paul Bakker <polarssl_maintainer at polarssl dot org> |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the names of PolarSSL or XySSL nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
| * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef POLARSSL_CAMELLIA_H |
| #define POLARSSL_CAMELLIA_H |
| |
| #define CAMELLIA_ENCRYPT 1 |
| #define CAMELLIA_DECRYPT 0 |
| |
| /** |
| * \brief CAMELLIA context structure |
| */ |
| typedef struct |
| { |
| int nr; /*!< number of rounds */ |
| unsigned long rk[68]; /*!< CAMELLIA round keys */ |
| } |
| camellia_context; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * \brief CAMELLIA key schedule (encryption) |
| * |
| * \param ctx CAMELLIA context to be initialized |
| * \param key encryption key |
| * \param keysize must be 128, 192 or 256 |
| */ |
| void camellia_setkey_enc( camellia_context *ctx, unsigned char *key, int keysize ); |
| |
| /** |
| * \brief CAMELLIA key schedule (decryption) |
| * |
| * \param ctx CAMELLIA context to be initialized |
| * \param key decryption key |
| * \param keysize must be 128, 192 or 256 |
| */ |
| void camellia_setkey_dec( camellia_context *ctx, unsigned char *key, int keysize ); |
| |
| /** |
| * \brief CAMELLIA-ECB block encryption/decryption |
| * |
| * \param ctx CAMELLIA context |
| * \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT |
| * \param input 16-byte input block |
| * \param output 16-byte output block |
| */ |
| void camellia_crypt_ecb( camellia_context *ctx, |
| int mode, |
| unsigned char input[16], |
| unsigned char output[16] ); |
| |
| /** |
| * \brief CAMELLIA-CBC buffer encryption/decryption |
| * |
| * \param ctx CAMELLIA context |
| * \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT |
| * \param length length of the input data |
| * \param iv initialization vector (updated after use) |
| * \param input buffer holding the input data |
| * \param output buffer holding the output data |
| */ |
| void camellia_crypt_cbc( camellia_context *ctx, |
| int mode, |
| int length, |
| unsigned char iv[16], |
| unsigned char *input, |
| unsigned char *output ); |
| |
| /** |
| * \brief CAMELLIA-CFB128 buffer encryption/decryption |
| * |
| * \param ctx CAMELLIA context |
| * \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT |
| * \param length length of the input data |
| * \param iv_off offset in IV (updated after use) |
| * \param iv initialization vector (updated after use) |
| * \param input buffer holding the input data |
| * \param output buffer holding the output data |
| */ |
| void camellia_crypt_cfb128( camellia_context *ctx, |
| int mode, |
| int length, |
| int *iv_off, |
| unsigned char iv[16], |
| unsigned char *input, |
| unsigned char *output ); |
| |
| /** |
| * \brief Checkup routine |
| * |
| * \return 0 if successful, or 1 if the test failed |
| */ |
| int camellia_self_test( int verbose ); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* camellia.h */ |