Rename include directory to mbedtls
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Manuel Pégourié-Gonnard
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129db08c90
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7f8099773e
250 changed files with 908 additions and 908 deletions
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include/mbedtls/blowfish.h
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include/mbedtls/blowfish.h
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/**
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* \file blowfish.h
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*
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* \brief Blowfish block cipher
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*
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* Copyright (C) 2012-2014, ARM Limited, All Rights Reserved
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef POLARSSL_BLOWFISH_H
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#define POLARSSL_BLOWFISH_H
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#if !defined(POLARSSL_CONFIG_FILE)
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#include "config.h"
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#else
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#include POLARSSL_CONFIG_FILE
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#endif
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#include <stddef.h>
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#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
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#include <basetsd.h>
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typedef UINT32 uint32_t;
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#else
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#include <inttypes.h>
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#endif
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#define BLOWFISH_ENCRYPT 1
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#define BLOWFISH_DECRYPT 0
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#define BLOWFISH_MAX_KEY 448
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#define BLOWFISH_MIN_KEY 32
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#define BLOWFISH_ROUNDS 16 /**< Rounds to use. When increasing this value, make sure to extend the initialisation vectors */
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#define BLOWFISH_BLOCKSIZE 8 /* Blowfish uses 64 bit blocks */
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#define POLARSSL_ERR_BLOWFISH_INVALID_KEY_LENGTH -0x0016 /**< Invalid key length. */
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#define POLARSSL_ERR_BLOWFISH_INVALID_INPUT_LENGTH -0x0018 /**< Invalid data input length. */
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#if !defined(POLARSSL_BLOWFISH_ALT)
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// Regular implementation
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//
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief Blowfish context structure
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*/
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typedef struct
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{
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uint32_t P[BLOWFISH_ROUNDS + 2]; /*!< Blowfish round keys */
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uint32_t S[4][256]; /*!< key dependent S-boxes */
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}
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blowfish_context;
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/**
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* \brief Initialize Blowfish context
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*
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* \param ctx Blowfish context to be initialized
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*/
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void blowfish_init( blowfish_context *ctx );
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/**
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* \brief Clear Blowfish context
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*
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* \param ctx Blowfish context to be cleared
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*/
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void blowfish_free( blowfish_context *ctx );
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/**
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* \brief Blowfish key schedule
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*
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* \param ctx Blowfish context to be initialized
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* \param key encryption key
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* \param keysize must be between 32 and 448 bits
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*
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* \return 0 if successful, or POLARSSL_ERR_BLOWFISH_INVALID_KEY_LENGTH
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*/
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int blowfish_setkey( blowfish_context *ctx, const unsigned char *key,
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unsigned int keysize );
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/**
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* \brief Blowfish-ECB block encryption/decryption
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*
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* \param ctx Blowfish context
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* \param mode BLOWFISH_ENCRYPT or BLOWFISH_DECRYPT
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* \param input 8-byte input block
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* \param output 8-byte output block
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*
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* \return 0 if successful
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*/
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int blowfish_crypt_ecb( blowfish_context *ctx,
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int mode,
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const unsigned char input[BLOWFISH_BLOCKSIZE],
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unsigned char output[BLOWFISH_BLOCKSIZE] );
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#if defined(POLARSSL_CIPHER_MODE_CBC)
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/**
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* \brief Blowfish-CBC buffer encryption/decryption
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* Length should be a multiple of the block
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* size (8 bytes)
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*
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* \note Upon exit, the content of the IV is updated so that you can
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* call the function same function again on the following
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* block(s) of data and get the same result as if it was
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* encrypted in one call. This allows a "streaming" usage.
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* If on the other hand you need to retain the contents of the
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* IV, you should either save it manually or use the cipher
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* module instead.
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*
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* \param ctx Blowfish context
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* \param mode BLOWFISH_ENCRYPT or BLOWFISH_DECRYPT
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* \param length length of the input data
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* \param iv initialization vector (updated after use)
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* \param input buffer holding the input data
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* \param output buffer holding the output data
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*
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* \return 0 if successful, or
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* POLARSSL_ERR_BLOWFISH_INVALID_INPUT_LENGTH
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*/
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int blowfish_crypt_cbc( blowfish_context *ctx,
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int mode,
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size_t length,
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unsigned char iv[BLOWFISH_BLOCKSIZE],
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const unsigned char *input,
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unsigned char *output );
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#endif /* POLARSSL_CIPHER_MODE_CBC */
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#if defined(POLARSSL_CIPHER_MODE_CFB)
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/**
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* \brief Blowfish CFB buffer encryption/decryption.
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*
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* \note Upon exit, the content of the IV is updated so that you can
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* call the function same function again on the following
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* block(s) of data and get the same result as if it was
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* encrypted in one call. This allows a "streaming" usage.
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* If on the other hand you need to retain the contents of the
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* IV, you should either save it manually or use the cipher
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* module instead.
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*
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* \param ctx Blowfish context
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* \param mode BLOWFISH_ENCRYPT or BLOWFISH_DECRYPT
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* \param length length of the input data
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* \param iv_off offset in IV (updated after use)
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* \param iv initialization vector (updated after use)
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* \param input buffer holding the input data
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* \param output buffer holding the output data
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*
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* \return 0 if successful
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*/
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int blowfish_crypt_cfb64( blowfish_context *ctx,
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int mode,
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size_t length,
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size_t *iv_off,
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unsigned char iv[BLOWFISH_BLOCKSIZE],
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const unsigned char *input,
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unsigned char *output );
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#endif /*POLARSSL_CIPHER_MODE_CFB */
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#if defined(POLARSSL_CIPHER_MODE_CTR)
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/**
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* \brief Blowfish-CTR buffer encryption/decryption
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*
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* Warning: You have to keep the maximum use of your counter in mind!
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*
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* \param ctx Blowfish context
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* \param length The length of the data
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* \param nc_off The offset in the current stream_block (for resuming
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* within current cipher stream). The offset pointer to
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* should be 0 at the start of a stream.
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* \param nonce_counter The 64-bit nonce and counter.
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* \param stream_block The saved stream-block for resuming. Is overwritten
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* by the function.
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* \param input The input data stream
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* \param output The output data stream
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*
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* \return 0 if successful
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*/
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int blowfish_crypt_ctr( blowfish_context *ctx,
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size_t length,
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size_t *nc_off,
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unsigned char nonce_counter[BLOWFISH_BLOCKSIZE],
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unsigned char stream_block[BLOWFISH_BLOCKSIZE],
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const unsigned char *input,
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unsigned char *output );
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#endif /* POLARSSL_CIPHER_MODE_CTR */
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#ifdef __cplusplus
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}
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#endif
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#else /* POLARSSL_BLOWFISH_ALT */
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#include "blowfish_alt.h"
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#endif /* POLARSSL_BLOWFISH_ALT */
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#endif /* blowfish.h */
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