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9872473f70
PolarSSL has been renamed to "mbed TLS" and version 2.0 dropped backwards compatibility. This commit adds only the necessary files without any modifications, so it doesn't compile yet.
236 lines
7.9 KiB
C
236 lines
7.9 KiB
C
/**
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* \file camellia.h
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*
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* \brief Camellia block cipher
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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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#ifndef MBEDTLS_CAMELLIA_H
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#define MBEDTLS_CAMELLIA_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#include <stddef.h>
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#include <stdint.h>
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#define MBEDTLS_CAMELLIA_ENCRYPT 1
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#define MBEDTLS_CAMELLIA_DECRYPT 0
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#define MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH -0x0024 /**< Invalid key length. */
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#define MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026 /**< Invalid data input length. */
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#if !defined(MBEDTLS_CAMELLIA_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 CAMELLIA context structure
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*/
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typedef struct
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{
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int nr; /*!< number of rounds */
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uint32_t rk[68]; /*!< CAMELLIA round keys */
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}
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mbedtls_camellia_context;
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/**
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* \brief Initialize CAMELLIA context
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*
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* \param ctx CAMELLIA context to be initialized
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*/
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void mbedtls_camellia_init( mbedtls_camellia_context *ctx );
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/**
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* \brief Clear CAMELLIA context
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*
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* \param ctx CAMELLIA context to be cleared
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*/
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void mbedtls_camellia_free( mbedtls_camellia_context *ctx );
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/**
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* \brief CAMELLIA key schedule (encryption)
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*
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* \param ctx CAMELLIA context to be initialized
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* \param key encryption key
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* \param keybits must be 128, 192 or 256
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*
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* \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH
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*/
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int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx, const unsigned char *key,
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unsigned int keybits );
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/**
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* \brief CAMELLIA key schedule (decryption)
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*
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* \param ctx CAMELLIA context to be initialized
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* \param key decryption key
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* \param keybits must be 128, 192 or 256
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*
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* \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH
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*/
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int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx, const unsigned char *key,
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unsigned int keybits );
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/**
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* \brief CAMELLIA-ECB block encryption/decryption
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*
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* \param ctx CAMELLIA context
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* \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT
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* \param input 16-byte input block
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* \param output 16-byte output block
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*
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* \return 0 if successful
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*/
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int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx,
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int mode,
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const unsigned char input[16],
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unsigned char output[16] );
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#if defined(MBEDTLS_CIPHER_MODE_CBC)
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/**
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* \brief CAMELLIA-CBC buffer encryption/decryption
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* Length should be a multiple of the block
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* size (16 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 CAMELLIA context
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* \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_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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* MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
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*/
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int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
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int mode,
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size_t length,
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unsigned char iv[16],
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const unsigned char *input,
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unsigned char *output );
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#endif /* MBEDTLS_CIPHER_MODE_CBC */
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#if defined(MBEDTLS_CIPHER_MODE_CFB)
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/**
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* \brief CAMELLIA-CFB128 buffer encryption/decryption
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*
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* Note: Due to the nature of CFB you should use the same key schedule for
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* both encryption and decryption. So a context initialized with
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* mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and CAMELLIE_DECRYPT.
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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 CAMELLIA context
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* \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_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, or
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* MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
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*/
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int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_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[16],
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const unsigned char *input,
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unsigned char *output );
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#endif /* MBEDTLS_CIPHER_MODE_CFB */
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#if defined(MBEDTLS_CIPHER_MODE_CTR)
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/**
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* \brief CAMELLIA-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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* Note: Due to the nature of CTR you should use the same key schedule for
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* both encryption and decryption. So a context initialized with
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* mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and MBEDTLS_CAMELLIA_DECRYPT.
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*
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* \param ctx CAMELLIA 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 128-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 mbedtls_camellia_crypt_ctr( mbedtls_camellia_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[16],
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unsigned char stream_block[16],
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const unsigned char *input,
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unsigned char *output );
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#endif /* MBEDTLS_CIPHER_MODE_CTR */
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#ifdef __cplusplus
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}
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#endif
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#else /* MBEDTLS_CAMELLIA_ALT */
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#include "camellia_alt.h"
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#endif /* MBEDTLS_CAMELLIA_ALT */
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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 Checkup routine
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*
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* \return 0 if successful, or 1 if the test failed
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*/
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int mbedtls_camellia_self_test( int verbose );
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#ifdef __cplusplus
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}
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#endif
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#endif /* camellia.h */
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