mbed TLS v2.28.2
Loading...
Searching...
No Matches
cmac.h
Go to the documentation of this file.
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
38extern "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
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)
221int 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) )
240int 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