mbed TLS v2.7.16
cmac.h
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52 
53 #ifndef MBEDTLS_CMAC_H
54 #define MBEDTLS_CMAC_H
55 
56 #if !defined(MBEDTLS_CONFIG_FILE)
57 #include "config.h"
58 #else
59 #include MBEDTLS_CONFIG_FILE
60 #endif
61 
62 #include "cipher.h"
63 
64 #ifdef __cplusplus
65 extern "C" {
66 #endif
67 
68 #define MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED -0x007A
70 #define MBEDTLS_AES_BLOCK_SIZE 16
71 #define MBEDTLS_DES3_BLOCK_SIZE 8
72 
73 #if defined(MBEDTLS_AES_C)
74 #define MBEDTLS_CIPHER_BLKSIZE_MAX 16 /* The longest block used by CMAC is that of AES. */
75 #else
76 #define MBEDTLS_CIPHER_BLKSIZE_MAX 8 /* The longest block used by CMAC is that of 3DES. */
77 #endif
78 
79 #if !defined(MBEDTLS_CMAC_ALT)
80 
85 {
88 
92 
95 };
96 
115  const unsigned char *key, size_t keybits );
116 
133  const unsigned char *input, size_t ilen );
134 
150  unsigned char *output );
151 
166 
188 int mbedtls_cipher_cmac( const mbedtls_cipher_info_t *cipher_info,
189  const unsigned char *key, size_t keylen,
190  const unsigned char *input, size_t ilen,
191  unsigned char *output );
192 
193 #if defined(MBEDTLS_AES_C)
194 
211 int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_len,
212  const unsigned char *input, size_t in_len,
213  unsigned char output[16] );
214 #endif /* MBEDTLS_AES_C */
215 
216 #ifdef __cplusplus
217 }
218 #endif
219 
220 #else /* !MBEDTLS_CMAC_ALT */
221 #include "cmac_alt.h"
222 #endif /* !MBEDTLS_CMAC_ALT */
223 
224 #ifdef __cplusplus
225 extern "C" {
226 #endif
227 
228 #if defined(MBEDTLS_SELF_TEST) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
229 
234 int mbedtls_cmac_self_test( int verbose );
235 #endif /* MBEDTLS_SELF_TEST && ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
236 
237 #ifdef __cplusplus
238 }
239 #endif
240 
241 #endif /* MBEDTLS_CMAC_H */
#define MBEDTLS_CIPHER_BLKSIZE_MAX
Definition: cmac.h:74
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:87
The generic cipher wrapper.
unsigned char unprocessed_block[MBEDTLS_CIPHER_BLKSIZE_MAX]
Definition: cmac.h:91
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:94
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.