+++ /dev/null
-/**
- * \file aes.h
- *
- * \brief AES block cipher
- *
- * Copyright (C) 2006-2014, 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
-
-#if !defined(POLARSSL_CONFIG_FILE)
-#include "polarssl_config.h"
-#else
-#include POLARSSL_CONFIG_FILE
-#endif
-
-#include <string.h>
-
-#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
-#include <basetsd.h>
-typedef UINT32 uint32_t;
-#else
-#include <inttypes.h>
-#endif
-
-/* padlock.c and aesni.c rely on these values! */
-#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. */
-
-#if !defined(POLARSSL_AES_ALT)
-// Regular implementation
-//
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief AES context structure
- *
- * \note buf is able to hold 32 extra bytes, which can be used:
- * - for alignment purposes if VIA padlock is used, and/or
- * - to simplify key expansion in the 256-bit case by
- * generating an extra round key
- */
-typedef struct
-{
- int nr; /*!< number of rounds */
- uint32_t *rk; /*!< AES round keys */
- uint32_t buf[68]; /*!< unaligned data */
-}
-aes_context;
-
-/**
- * \brief Initialize AES context
- *
- * \param ctx AES context to be initialized
- */
-void aes_init( aes_context *ctx );
-
-/**
- * \brief Clear AES context
- *
- * \param ctx AES context to be cleared
- */
-void aes_free( aes_context *ctx );
-
-/**
- * \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] );
-#if defined(POLARSSL_CIPHER_MODE_CBC)
-/**
- * \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 );
-#endif /* POLARSSL_CIPHER_MODE_CBC */
-
-#if defined(POLARSSL_CIPHER_MODE_CFB)
-/**
- * \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.
- *
- * \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-CFB8 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.
- *
- * \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
- */
-int aes_crypt_cfb8( aes_context *ctx,
- int mode,
- size_t length,
- unsigned char iv[16],
- const unsigned char *input,
- unsigned char *output );
-#endif /*POLARSSL_CIPHER_MODE_CFB */
-
-#if defined(POLARSSL_CIPHER_MODE_CTR)
-/**
- * \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 ctx AES context
- * \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 );
-#endif /* POLARSSL_CIPHER_MODE_CTR */
-
-#ifdef __cplusplus
-}
-#endif
-
-#else /* POLARSSL_AES_ALT */
-#include "aes_alt.h"
-#endif /* POLARSSL_AES_ALT */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \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 */
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