mbed TLS v2.16.3
cmac.h
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1 
9 /*
10  * Copyright (C) 2015-2018, Arm Limited (or its affiliates), All Rights Reserved
11  * SPDX-License-Identifier: Apache-2.0
12  *
13  * Licensed under the Apache License, Version 2.0 (the "License"); you may
14  * not use this file except in compliance with the License.
15  * You may obtain a copy of the License at
16  *
17  * http://www.apache.org/licenses/LICENSE-2.0
18  *
19  * Unless required by applicable law or agreed to in writing, software
20  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
21  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
22  * See the License for the specific language governing permissions and
23  * limitations under the License.
24  *
25  * This file is part of Mbed TLS (https://tls.mbed.org)
26  */
27 
28 #ifndef MBEDTLS_CMAC_H
29 #define MBEDTLS_CMAC_H
30 
31 #if !defined(MBEDTLS_CONFIG_FILE)
32 #include "config.h"
33 #else
34 #include MBEDTLS_CONFIG_FILE
35 #endif
36 
37 #include "cipher.h"
38 
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42 
43 /* MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED is deprecated and should not be used. */
44 #define MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED -0x007A
46 #define MBEDTLS_AES_BLOCK_SIZE 16
47 #define MBEDTLS_DES3_BLOCK_SIZE 8
48 
49 #if defined(MBEDTLS_AES_C)
50 #define MBEDTLS_CIPHER_BLKSIZE_MAX 16
51 #else
52 #define MBEDTLS_CIPHER_BLKSIZE_MAX 8
53 #endif
54 
55 #if !defined(MBEDTLS_CMAC_ALT)
56 
61 {
64 
68 
71 };
72 
73 #else /* !MBEDTLS_CMAC_ALT */
74 #include "cmac_alt.h"
75 #endif /* !MBEDTLS_CMAC_ALT */
76 
94  const unsigned char *key, size_t keybits );
95 
113  const unsigned char *input, size_t ilen );
114 
131  unsigned char *output );
132 
148 
172  const unsigned char *key, size_t keylen,
173  const unsigned char *input, size_t ilen,
174  unsigned char *output );
175 
176 #if defined(MBEDTLS_AES_C)
194 int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_len,
195  const unsigned char *input, size_t in_len,
196  unsigned char output[16] );
197 #endif /* MBEDTLS_AES_C */
198 
199 #if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
206 int mbedtls_cmac_self_test( int verbose );
207 #endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
208 
209 #ifdef __cplusplus
210 }
211 #endif
212 
213 #endif /* MBEDTLS_CMAC_H */
This file contains an abstraction interface for use with the cipher primitives provided by the librar...
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.
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_cmac_self_test(int verbose)
The CMAC checkup routine.
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.
#define MBEDTLS_CIPHER_BLKSIZE_MAX
Definition: cmac.h:50
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...
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 ...
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.
Configuration options (set of defines)
unsigned char unprocessed_block[MBEDTLS_CIPHER_BLKSIZE_MAX]
Definition: cmac.h:67
size_t unprocessed_len
Definition: cmac.h:70
unsigned char state[MBEDTLS_CIPHER_BLKSIZE_MAX]
Definition: cmac.h:63