mbed TLS v2.28.2
cmac.h
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1 
9 /*
10  * Copyright The Mbed TLS Contributors
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 
26 #ifndef MBEDTLS_CMAC_H
27 #define MBEDTLS_CMAC_H
28 
29 #if !defined(MBEDTLS_CONFIG_FILE)
30 #include "mbedtls/config.h"
31 #else
32 #include MBEDTLS_CONFIG_FILE
33 #endif
34 
35 #include "mbedtls/cipher.h"
36 
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40 
41 /* MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED is deprecated and should not be used. */
43 #define MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED -0x007A
44 
45 #define MBEDTLS_AES_BLOCK_SIZE 16
46 #define MBEDTLS_DES3_BLOCK_SIZE 8
47 
48 #if defined(MBEDTLS_AES_C)
49 #define MBEDTLS_CIPHER_BLKSIZE_MAX 16
50 #else
51 #define MBEDTLS_CIPHER_BLKSIZE_MAX 8
52 #endif
53 
54 #if !defined(MBEDTLS_CMAC_ALT)
55 
60 {
63 
67 
70 };
71 
72 #else /* !MBEDTLS_CMAC_ALT */
73 #include "cmac_alt.h"
74 #endif /* !MBEDTLS_CMAC_ALT */
75 
107  const unsigned char *key, size_t keybits );
108 
132  const unsigned char *input, size_t ilen );
133 
151  unsigned char *output );
152 
170 
199  const unsigned char *key, size_t keylen,
200  const unsigned char *input, size_t ilen,
201  unsigned char *output );
202 
203 #if defined(MBEDTLS_AES_C)
221 int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_len,
222  const unsigned char *input, size_t in_len,
223  unsigned char output[16] );
224 #endif /* MBEDTLS_AES_C */
225 
226 #if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
240 int mbedtls_cmac_self_test( int verbose );
241 #endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
242 
243 #ifdef __cplusplus
244 }
245 #endif
246 
247 #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 starts a new CMAC operation with the same key as the previous one.
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 an ongoing CMAC operation, and writes the result to the output buffer.
#define MBEDTLS_CIPHER_BLKSIZE_MAX
Definition: cmac.h:49
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 starts a new CMAC computation by setting the CMAC key, and preparing to authenticate th...
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:66
size_t unprocessed_len
Definition: cmac.h:69
unsigned char state[MBEDTLS_CIPHER_BLKSIZE_MAX]
Definition: cmac.h:62