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Diffstat (limited to 'polarssl/src/include/polarssl/aes.h')
| -rw-r--r-- | polarssl/src/include/polarssl/aes.h | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/polarssl/src/include/polarssl/aes.h b/polarssl/src/include/polarssl/aes.h deleted file mode 100644 index 80fd6d9..0000000 --- a/polarssl/src/include/polarssl/aes.h +++ /dev/null @@ -1,176 +0,0 @@ -/** - * \file aes.h - * - * \brief AES block cipher - * - * Copyright (C) 2006-2010, Brainspark B.V. - * - * This file is part of PolarSSL (http://www.polarssl.org) - * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ -#ifndef POLARSSL_AES_H -#define POLARSSL_AES_H - -#include <string.h> - -#define AES_ENCRYPT 1 -#define AES_DECRYPT 0 - -#define POLARSSL_ERR_AES_INVALID_KEY_LENGTH -0x0020 /**< Invalid key length. */ -#define POLARSSL_ERR_AES_INVALID_INPUT_LENGTH -0x0022 /**< Invalid data input length. */ - -/** - * \brief AES context structure - */ -typedef struct -{ - int nr; /*!< number of rounds */ - unsigned long *rk; /*!< AES round keys */ - unsigned long buf[68]; /*!< unaligned data */ -} -aes_context; - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief AES key schedule (encryption) - * - * \param ctx AES context to be initialized - * \param key encryption key - * \param keysize must be 128, 192 or 256 - * - * \return 0 if successful, or POLARSSL_ERR_AES_INVALID_KEY_LENGTH - */ -int aes_setkey_enc( aes_context *ctx, const unsigned char *key, unsigned int keysize ); - -/** - * \brief AES key schedule (decryption) - * - * \param ctx AES context to be initialized - * \param key decryption key - * \param keysize must be 128, 192 or 256 - * - * \return 0 if successful, or POLARSSL_ERR_AES_INVALID_KEY_LENGTH - */ -int aes_setkey_dec( aes_context *ctx, const unsigned char *key, unsigned int keysize ); - -/** - * \brief AES-ECB block encryption/decryption - * - * \param ctx AES context - * \param mode AES_ENCRYPT or AES_DECRYPT - * \param input 16-byte input block - * \param output 16-byte output block - * - * \return 0 if successful - */ -int aes_crypt_ecb( aes_context *ctx, - int mode, - const unsigned char input[16], - unsigned char output[16] ); - -/** - * \brief AES-CBC buffer encryption/decryption - * Length should be a multiple of the block - * size (16 bytes) - * - * \param ctx AES context - * \param mode AES_ENCRYPT or AES_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 - * - * \return 0 if successful, or POLARSSL_ERR_AES_INVALID_INPUT_LENGTH - */ -int aes_crypt_cbc( aes_context *ctx, - int mode, - size_t length, - unsigned char iv[16], - const unsigned char *input, - unsigned char *output ); - -/** - * \brief AES-CFB128 buffer encryption/decryption. - * - * Note: Due to the nature of CFB you should use the same key schedule for - * both encryption and decryption. So a context initialized with - * aes_setkey_enc() for both AES_ENCRYPT and AES_DECRYPT. - * - * both - * \param ctx AES context - * \param mode AES_ENCRYPT or AES_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 - * - * \return 0 if successful - */ -int aes_crypt_cfb128( aes_context *ctx, - int mode, - size_t length, - size_t *iv_off, - unsigned char iv[16], - const unsigned char *input, - unsigned char *output ); - -/* - * \brief AES-CTR buffer encryption/decryption - * - * Warning: You have to keep the maximum use of your counter in mind! - * - * Note: Due to the nature of CTR you should use the same key schedule for - * both encryption and decryption. So a context initialized with - * aes_setkey_enc() for both AES_ENCRYPT and AES_DECRYPT. - * - * \param length The length of the data - * \param nc_off The offset in the current stream_block (for resuming - * within current cipher stream). The offset pointer to - * should be 0 at the start of a stream. - * \param nonce_counter The 128-bit nonce and counter. - * \param stream_block The saved stream-block for resuming. Is overwritten - * by the function. - * \param input The input data stream - * \param output The output data stream - * - * \return 0 if successful - */ -int aes_crypt_ctr( aes_context *ctx, - size_t length, - size_t *nc_off, - unsigned char nonce_counter[16], - unsigned char stream_block[16], - const unsigned char *input, - unsigned char *output ); -/** - * \brief Checkup routine - * - * \return 0 if successful, or 1 if the test failed - */ -int aes_self_test( int verbose ); - -#ifdef __cplusplus -} -#endif - -#endif /* aes.h */ |