mbed TLS v2.26.0
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. */
42 #define MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED -0x007A
44 #define MBEDTLS_AES_BLOCK_SIZE 16
45 #define MBEDTLS_DES3_BLOCK_SIZE 8
46 
47 #if defined(MBEDTLS_AES_C)
48 #define MBEDTLS_CIPHER_BLKSIZE_MAX 16
49 #else
50 #define MBEDTLS_CIPHER_BLKSIZE_MAX 8
51 #endif
52 
53 #if !defined(MBEDTLS_CMAC_ALT)
54 
59 {
62 
66 
69 };
70 
71 #else /* !MBEDTLS_CMAC_ALT */
72 #include "cmac_alt.h"
73 #endif /* !MBEDTLS_CMAC_ALT */
74 
92  const unsigned char *key, size_t keybits );
93 
111  const unsigned char *input, size_t ilen );
112 
129  unsigned char *output );
130 
146 
169 int mbedtls_cipher_cmac( const mbedtls_cipher_info_t *cipher_info,
170  const unsigned char *key, size_t keylen,
171  const unsigned char *input, size_t ilen,
172  unsigned char *output );
173 
174 #if defined(MBEDTLS_AES_C)
175 
192 int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_len,
193  const unsigned char *input, size_t in_len,
194  unsigned char output[16] );
195 #endif /* MBEDTLS_AES_C */
196 
197 #if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
198 
204 int mbedtls_cmac_self_test( int verbose );
205 #endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
206 
207 #ifdef __cplusplus
208 }
209 #endif
210 
211 #endif /* MBEDTLS_CMAC_H */
#define MBEDTLS_CIPHER_BLKSIZE_MAX
Definition: cmac.h:48
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:61
This file contains an abstraction interface for use with the cipher primitives provided by the librar...
unsigned char unprocessed_block[MBEDTLS_CIPHER_BLKSIZE_MAX]
Definition: cmac.h:65
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:68
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.