mbed TLS v2.7.14
cmac.h
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1 
7 /*
8  * Copyright (C) 2015-2018, Arm Limited (or its affiliates), All Rights Reserved
9  * SPDX-License-Identifier: Apache-2.0
10  *
11  * Licensed under the Apache License, Version 2.0 (the "License"); you may
12  * not use this file except in compliance with the License.
13  * You may obtain a copy of the License at
14  *
15  * http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing, software
18  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
19  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20  * See the License for the specific language governing permissions and
21  * limitations under the License.
22  *
23  * This file is part of Mbed TLS (https://tls.mbed.org)
24  */
25 
26 #ifndef MBEDTLS_CMAC_H
27 #define MBEDTLS_CMAC_H
28 
29 #if !defined(MBEDTLS_CONFIG_FILE)
30 #include "config.h"
31 #else
32 #include MBEDTLS_CONFIG_FILE
33 #endif
34 
35 #include "cipher.h"
36 
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40 
41 #define MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED -0x007A
43 #define MBEDTLS_AES_BLOCK_SIZE 16
44 #define MBEDTLS_DES3_BLOCK_SIZE 8
45 
46 #if defined(MBEDTLS_AES_C)
47 #define MBEDTLS_CIPHER_BLKSIZE_MAX 16 /* The longest block used by CMAC is that of AES. */
48 #else
49 #define MBEDTLS_CIPHER_BLKSIZE_MAX 8 /* The longest block used by CMAC is that of 3DES. */
50 #endif
51 
52 #if !defined(MBEDTLS_CMAC_ALT)
53 
58 {
61 
65 
68 };
69 
88  const unsigned char *key, size_t keybits );
89 
106  const unsigned char *input, size_t ilen );
107 
123  unsigned char *output );
124 
139 
161 int mbedtls_cipher_cmac( const mbedtls_cipher_info_t *cipher_info,
162  const unsigned char *key, size_t keylen,
163  const unsigned char *input, size_t ilen,
164  unsigned char *output );
165 
166 #if defined(MBEDTLS_AES_C)
167 
184 int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_len,
185  const unsigned char *input, size_t in_len,
186  unsigned char output[16] );
187 #endif /* MBEDTLS_AES_C */
188 
189 #ifdef __cplusplus
190 }
191 #endif
192 
193 #else /* !MBEDTLS_CMAC_ALT */
194 #include "cmac_alt.h"
195 #endif /* !MBEDTLS_CMAC_ALT */
196 
197 #ifdef __cplusplus
198 extern "C" {
199 #endif
200 
201 #if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
202 
207 int mbedtls_cmac_self_test( int verbose );
208 #endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
209 
210 #ifdef __cplusplus
211 }
212 #endif
213 
214 #endif /* MBEDTLS_CMAC_H */
#define MBEDTLS_CIPHER_BLKSIZE_MAX
Definition: cmac.h:47
int mbedtls_cipher_cmac_reset(mbedtls_cipher_context_t *ctx)
This function prepares the authentication of another message with the same key as the previous CMAC o...
int mbedtls_cipher_cmac_starts(mbedtls_cipher_context_t *ctx, const unsigned char *key, size_t keybits)
This function sets the CMAC key, and prepares to authenticate the input data. Must be called with an ...
Configuration options (set of defines)
int mbedtls_aes_cmac_prf_128(const unsigned char *key, size_t key_len, const unsigned char *input, size_t in_len, unsigned char output[16])
This function implements the AES-CMAC-PRF-128 pseudorandom function, as defined in RFC-4615: The Adva...
unsigned char state[MBEDTLS_CIPHER_BLKSIZE_MAX]
Definition: cmac.h:60
The generic cipher wrapper.
unsigned char unprocessed_block[MBEDTLS_CIPHER_BLKSIZE_MAX]
Definition: cmac.h:64
int mbedtls_cipher_cmac(const mbedtls_cipher_info_t *cipher_info, const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char *output)
This function calculates the full generic CMAC on the input buffer with the provided key...
size_t unprocessed_len
Definition: cmac.h:67
int mbedtls_cipher_cmac_finish(mbedtls_cipher_context_t *ctx, unsigned char *output)
This function finishes the CMAC operation, and writes the result to the output buffer.
int mbedtls_cmac_self_test(int verbose)
The CMAC checkup routine.
int mbedtls_cipher_cmac_update(mbedtls_cipher_context_t *ctx, const unsigned char *input, size_t ilen)
This function feeds an input buffer into an ongoing CMAC computation.