mbed TLS v3.3.0
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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
29
30#include "mbedtls/build_info.h"
31
32#include "mbedtls/cipher.h"
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
38#define MBEDTLS_AES_BLOCK_SIZE 16
39#define MBEDTLS_DES3_BLOCK_SIZE 8
40
41#if defined(MBEDTLS_AES_C)
42#define MBEDTLS_CIPHER_BLKSIZE_MAX 16
43#else
44#define MBEDTLS_CIPHER_BLKSIZE_MAX 8
45#endif
46
47#if !defined(MBEDTLS_CMAC_ALT)
48
53{
56
59 unsigned char MBEDTLS_PRIVATE(unprocessed_block)[MBEDTLS_CIPHER_BLKSIZE_MAX];
60
62 size_t MBEDTLS_PRIVATE(unprocessed_len);
63};
64
65#else /* !MBEDTLS_CMAC_ALT */
66#include "cmac_alt.h"
67#endif /* !MBEDTLS_CMAC_ALT */
68
100 const unsigned char *key, size_t keybits );
101
125 const unsigned char *input, size_t ilen );
126
144 unsigned char *output );
145
163
192 const unsigned char *key, size_t keylen,
193 const unsigned char *input, size_t ilen,
194 unsigned char *output );
195
196#if defined(MBEDTLS_AES_C)
214int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_len,
215 const unsigned char *input, size_t in_len,
216 unsigned char output[16] );
217#endif /* MBEDTLS_AES_C */
218
219#if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
233int mbedtls_cmac_self_test( int verbose );
234#endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
235
236#ifdef __cplusplus
237}
238#endif
239
240#endif /* MBEDTLS_CMAC_H */
Build-time configuration info.
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:42
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.
Macro wrapper for struct's members.
#define MBEDTLS_PRIVATE(member)