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include/mbedtls/camellia.h@1:1a219dea6cb5, 2019-06-04 (annotated)

Committer:
williequesada
Date:
Tue Jun 04 16:03:38 2019 +0000
Revision:
1:1a219dea6cb5
Parent:
0:cdf462088d13 
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markrad 0:cdf462088d13 1 /**
markrad 0:cdf462088d13 2 * \file camellia.h
markrad 0:cdf462088d13 3 *
markrad 0:cdf462088d13 4 * \brief Camellia block cipher
markrad 0:cdf462088d13 5 *
markrad 0:cdf462088d13 6 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
markrad 0:cdf462088d13 7 * SPDX-License-Identifier: Apache-2.0
markrad 0:cdf462088d13 8 *
markrad 0:cdf462088d13 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
markrad 0:cdf462088d13 10 * not use this file except in compliance with the License.
markrad 0:cdf462088d13 11 * You may obtain a copy of the License at
markrad 0:cdf462088d13 12 *
markrad 0:cdf462088d13 13 * http://www.apache.org/licenses/LICENSE-2.0
markrad 0:cdf462088d13 14 *
markrad 0:cdf462088d13 15 * Unless required by applicable law or agreed to in writing, software
markrad 0:cdf462088d13 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
markrad 0:cdf462088d13 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
markrad 0:cdf462088d13 18 * See the License for the specific language governing permissions and
markrad 0:cdf462088d13 19 * limitations under the License.
markrad 0:cdf462088d13 20 *
markrad 0:cdf462088d13 21 * This file is part of mbed TLS (https://tls.mbed.org)
markrad 0:cdf462088d13 22 */
markrad 0:cdf462088d13 23 #ifndef MBEDTLS_CAMELLIA_H
markrad 0:cdf462088d13 24 #define MBEDTLS_CAMELLIA_H
markrad 0:cdf462088d13 25
markrad 0:cdf462088d13 26 #if !defined(MBEDTLS_CONFIG_FILE)
markrad 0:cdf462088d13 27 #include "config.h"
markrad 0:cdf462088d13 28 #else
markrad 0:cdf462088d13 29 #include MBEDTLS_CONFIG_FILE
markrad 0:cdf462088d13 30 #endif
markrad 0:cdf462088d13 31
markrad 0:cdf462088d13 32 #include <stddef.h>
markrad 0:cdf462088d13 33 #include <stdint.h>
markrad 0:cdf462088d13 34
markrad 0:cdf462088d13 35 #define MBEDTLS_CAMELLIA_ENCRYPT 1
markrad 0:cdf462088d13 36 #define MBEDTLS_CAMELLIA_DECRYPT 0
markrad 0:cdf462088d13 37
markrad 0:cdf462088d13 38 #define MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH -0x0024 /**< Invalid key length. */
markrad 0:cdf462088d13 39 #define MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026 /**< Invalid data input length. */
markrad 0:cdf462088d13 40
markrad 0:cdf462088d13 41 #if !defined(MBEDTLS_CAMELLIA_ALT)
markrad 0:cdf462088d13 42 // Regular implementation
markrad 0:cdf462088d13 43 //
markrad 0:cdf462088d13 44
markrad 0:cdf462088d13 45 #ifdef __cplusplus
markrad 0:cdf462088d13 46 extern "C" {
markrad 0:cdf462088d13 47 #endif
markrad 0:cdf462088d13 48
markrad 0:cdf462088d13 49 /**
markrad 0:cdf462088d13 50 * \brief CAMELLIA context structure
markrad 0:cdf462088d13 51 */
markrad 0:cdf462088d13 52 typedef struct
markrad 0:cdf462088d13 53 {
markrad 0:cdf462088d13 54 int nr; /*!< number of rounds */
markrad 0:cdf462088d13 55 uint32_t rk[68]; /*!< CAMELLIA round keys */
markrad 0:cdf462088d13 56 }
markrad 0:cdf462088d13 57 mbedtls_camellia_context;
markrad 0:cdf462088d13 58
markrad 0:cdf462088d13 59 /**
markrad 0:cdf462088d13 60 * \brief Initialize CAMELLIA context
markrad 0:cdf462088d13 61 *
markrad 0:cdf462088d13 62 * \param ctx CAMELLIA context to be initialized
markrad 0:cdf462088d13 63 */
markrad 0:cdf462088d13 64 void mbedtls_camellia_init( mbedtls_camellia_context *ctx );
markrad 0:cdf462088d13 65
markrad 0:cdf462088d13 66 /**
markrad 0:cdf462088d13 67 * \brief Clear CAMELLIA context
markrad 0:cdf462088d13 68 *
markrad 0:cdf462088d13 69 * \param ctx CAMELLIA context to be cleared
markrad 0:cdf462088d13 70 */
markrad 0:cdf462088d13 71 void mbedtls_camellia_free( mbedtls_camellia_context *ctx );
markrad 0:cdf462088d13 72
markrad 0:cdf462088d13 73 /**
markrad 0:cdf462088d13 74 * \brief CAMELLIA key schedule (encryption)
markrad 0:cdf462088d13 75 *
markrad 0:cdf462088d13 76 * \param ctx CAMELLIA context to be initialized
markrad 0:cdf462088d13 77 * \param key encryption key
markrad 0:cdf462088d13 78 * \param keybits must be 128, 192 or 256
markrad 0:cdf462088d13 79 *
markrad 0:cdf462088d13 80 * \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH
markrad 0:cdf462088d13 81 */
markrad 0:cdf462088d13 82 int mbedtls_camellia_setkey_enc( mbedtls_camellia_context *ctx, const unsigned char *key,
markrad 0:cdf462088d13 83 unsigned int keybits );
markrad 0:cdf462088d13 84
markrad 0:cdf462088d13 85 /**
markrad 0:cdf462088d13 86 * \brief CAMELLIA key schedule (decryption)
markrad 0:cdf462088d13 87 *
markrad 0:cdf462088d13 88 * \param ctx CAMELLIA context to be initialized
markrad 0:cdf462088d13 89 * \param key decryption key
markrad 0:cdf462088d13 90 * \param keybits must be 128, 192 or 256
markrad 0:cdf462088d13 91 *
markrad 0:cdf462088d13 92 * \return 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH
markrad 0:cdf462088d13 93 */
markrad 0:cdf462088d13 94 int mbedtls_camellia_setkey_dec( mbedtls_camellia_context *ctx, const unsigned char *key,
markrad 0:cdf462088d13 95 unsigned int keybits );
markrad 0:cdf462088d13 96
markrad 0:cdf462088d13 97 /**
markrad 0:cdf462088d13 98 * \brief CAMELLIA-ECB block encryption/decryption
markrad 0:cdf462088d13 99 *
markrad 0:cdf462088d13 100 * \param ctx CAMELLIA context
markrad 0:cdf462088d13 101 * \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT
markrad 0:cdf462088d13 102 * \param input 16-byte input block
markrad 0:cdf462088d13 103 * \param output 16-byte output block
markrad 0:cdf462088d13 104 *
markrad 0:cdf462088d13 105 * \return 0 if successful
markrad 0:cdf462088d13 106 */
markrad 0:cdf462088d13 107 int mbedtls_camellia_crypt_ecb( mbedtls_camellia_context *ctx,
markrad 0:cdf462088d13 108 int mode,
markrad 0:cdf462088d13 109 const unsigned char input[16],
markrad 0:cdf462088d13 110 unsigned char output[16] );
markrad 0:cdf462088d13 111
markrad 0:cdf462088d13 112 #if defined(MBEDTLS_CIPHER_MODE_CBC)
markrad 0:cdf462088d13 113 /**
markrad 0:cdf462088d13 114 * \brief CAMELLIA-CBC buffer encryption/decryption
markrad 0:cdf462088d13 115 * Length should be a multiple of the block
markrad 0:cdf462088d13 116 * size (16 bytes)
markrad 0:cdf462088d13 117 *
markrad 0:cdf462088d13 118 * \note Upon exit, the content of the IV is updated so that you can
markrad 0:cdf462088d13 119 * call the function same function again on the following
markrad 0:cdf462088d13 120 * block(s) of data and get the same result as if it was
markrad 0:cdf462088d13 121 * encrypted in one call. This allows a "streaming" usage.
markrad 0:cdf462088d13 122 * If on the other hand you need to retain the contents of the
markrad 0:cdf462088d13 123 * IV, you should either save it manually or use the cipher
markrad 0:cdf462088d13 124 * module instead.
markrad 0:cdf462088d13 125 *
markrad 0:cdf462088d13 126 * \param ctx CAMELLIA context
markrad 0:cdf462088d13 127 * \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT
markrad 0:cdf462088d13 128 * \param length length of the input data
markrad 0:cdf462088d13 129 * \param iv initialization vector (updated after use)
markrad 0:cdf462088d13 130 * \param input buffer holding the input data
markrad 0:cdf462088d13 131 * \param output buffer holding the output data
markrad 0:cdf462088d13 132 *
markrad 0:cdf462088d13 133 * \return 0 if successful, or
markrad 0:cdf462088d13 134 * MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
markrad 0:cdf462088d13 135 */
markrad 0:cdf462088d13 136 int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
markrad 0:cdf462088d13 137 int mode,
markrad 0:cdf462088d13 138 size_t length,
markrad 0:cdf462088d13 139 unsigned char iv[16],
markrad 0:cdf462088d13 140 const unsigned char *input,
markrad 0:cdf462088d13 141 unsigned char *output );
markrad 0:cdf462088d13 142 #endif /* MBEDTLS_CIPHER_MODE_CBC */
markrad 0:cdf462088d13 143
markrad 0:cdf462088d13 144 #if defined(MBEDTLS_CIPHER_MODE_CFB)
markrad 0:cdf462088d13 145 /**
markrad 0:cdf462088d13 146 * \brief CAMELLIA-CFB128 buffer encryption/decryption
markrad 0:cdf462088d13 147 *
markrad 0:cdf462088d13 148 * Note: Due to the nature of CFB you should use the same key schedule for
markrad 0:cdf462088d13 149 * both encryption and decryption. So a context initialized with
markrad 0:cdf462088d13 150 * mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and CAMELLIE_DECRYPT.
markrad 0:cdf462088d13 151 *
markrad 0:cdf462088d13 152 * \note Upon exit, the content of the IV is updated so that you can
markrad 0:cdf462088d13 153 * call the function same function again on the following
markrad 0:cdf462088d13 154 * block(s) of data and get the same result as if it was
markrad 0:cdf462088d13 155 * encrypted in one call. This allows a "streaming" usage.
markrad 0:cdf462088d13 156 * If on the other hand you need to retain the contents of the
markrad 0:cdf462088d13 157 * IV, you should either save it manually or use the cipher
markrad 0:cdf462088d13 158 * module instead.
markrad 0:cdf462088d13 159 *
markrad 0:cdf462088d13 160 * \param ctx CAMELLIA context
markrad 0:cdf462088d13 161 * \param mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT
markrad 0:cdf462088d13 162 * \param length length of the input data
markrad 0:cdf462088d13 163 * \param iv_off offset in IV (updated after use)
markrad 0:cdf462088d13 164 * \param iv initialization vector (updated after use)
markrad 0:cdf462088d13 165 * \param input buffer holding the input data
markrad 0:cdf462088d13 166 * \param output buffer holding the output data
markrad 0:cdf462088d13 167 *
markrad 0:cdf462088d13 168 * \return 0 if successful, or
markrad 0:cdf462088d13 169 * MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
markrad 0:cdf462088d13 170 */
markrad 0:cdf462088d13 171 int mbedtls_camellia_crypt_cfb128( mbedtls_camellia_context *ctx,
markrad 0:cdf462088d13 172 int mode,
markrad 0:cdf462088d13 173 size_t length,
markrad 0:cdf462088d13 174 size_t *iv_off,
markrad 0:cdf462088d13 175 unsigned char iv[16],
markrad 0:cdf462088d13 176 const unsigned char *input,
markrad 0:cdf462088d13 177 unsigned char *output );
markrad 0:cdf462088d13 178 #endif /* MBEDTLS_CIPHER_MODE_CFB */
markrad 0:cdf462088d13 179
markrad 0:cdf462088d13 180 #if defined(MBEDTLS_CIPHER_MODE_CTR)
markrad 0:cdf462088d13 181 /**
markrad 0:cdf462088d13 182 * \brief CAMELLIA-CTR buffer encryption/decryption
markrad 0:cdf462088d13 183 *
markrad 0:cdf462088d13 184 * Warning: You have to keep the maximum use of your counter in mind!
markrad 0:cdf462088d13 185 *
markrad 0:cdf462088d13 186 * Note: Due to the nature of CTR you should use the same key schedule for
markrad 0:cdf462088d13 187 * both encryption and decryption. So a context initialized with
markrad 0:cdf462088d13 188 * mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and MBEDTLS_CAMELLIA_DECRYPT.
markrad 0:cdf462088d13 189 *
markrad 0:cdf462088d13 190 * \param ctx CAMELLIA context
markrad 0:cdf462088d13 191 * \param length The length of the data
markrad 0:cdf462088d13 192 * \param nc_off The offset in the current stream_block (for resuming
markrad 0:cdf462088d13 193 * within current cipher stream). The offset pointer to
markrad 0:cdf462088d13 194 * should be 0 at the start of a stream.
markrad 0:cdf462088d13 195 * \param nonce_counter The 128-bit nonce and counter.
markrad 0:cdf462088d13 196 * \param stream_block The saved stream-block for resuming. Is overwritten
markrad 0:cdf462088d13 197 * by the function.
markrad 0:cdf462088d13 198 * \param input The input data stream
markrad 0:cdf462088d13 199 * \param output The output data stream
markrad 0:cdf462088d13 200 *
markrad 0:cdf462088d13 201 * \return 0 if successful
markrad 0:cdf462088d13 202 */
markrad 0:cdf462088d13 203 int mbedtls_camellia_crypt_ctr( mbedtls_camellia_context *ctx,
markrad 0:cdf462088d13 204 size_t length,
markrad 0:cdf462088d13 205 size_t *nc_off,
markrad 0:cdf462088d13 206 unsigned char nonce_counter[16],
markrad 0:cdf462088d13 207 unsigned char stream_block[16],
markrad 0:cdf462088d13 208 const unsigned char *input,
markrad 0:cdf462088d13 209 unsigned char *output );
markrad 0:cdf462088d13 210 #endif /* MBEDTLS_CIPHER_MODE_CTR */
markrad 0:cdf462088d13 211
markrad 0:cdf462088d13 212 #ifdef __cplusplus
markrad 0:cdf462088d13 213 }
markrad 0:cdf462088d13 214 #endif
markrad 0:cdf462088d13 215
markrad 0:cdf462088d13 216 #else /* MBEDTLS_CAMELLIA_ALT */
markrad 0:cdf462088d13 217 #include "camellia_alt.h"
markrad 0:cdf462088d13 218 #endif /* MBEDTLS_CAMELLIA_ALT */
markrad 0:cdf462088d13 219
markrad 0:cdf462088d13 220 #ifdef __cplusplus
markrad 0:cdf462088d13 221 extern "C" {
markrad 0:cdf462088d13 222 #endif
markrad 0:cdf462088d13 223
markrad 0:cdf462088d13 224 /**
markrad 0:cdf462088d13 225 * \brief Checkup routine
markrad 0:cdf462088d13 226 *
markrad 0:cdf462088d13 227 * \return 0 if successful, or 1 if the test failed
markrad 0:cdf462088d13 228 */
markrad 0:cdf462088d13 229 int mbedtls_camellia_self_test( int verbose );
markrad 0:cdf462088d13 230
markrad 0:cdf462088d13 231 #ifdef __cplusplus
markrad 0:cdf462088d13 232 }
markrad 0:cdf462088d13 233 #endif
markrad 0:cdf462088d13 234
markrad 0:cdf462088d13 235 #endif /* camellia.h */