diff options
Diffstat (limited to 'src/libstrongswan/plugins/cmac/cmac.h')
-rw-r--r-- | src/libstrongswan/plugins/cmac/cmac.h | 60 |
1 files changed, 15 insertions, 45 deletions
diff --git a/src/libstrongswan/plugins/cmac/cmac.h b/src/libstrongswan/plugins/cmac/cmac.h index 061609127..dc85e3bc3 100644 --- a/src/libstrongswan/plugins/cmac/cmac.h +++ b/src/libstrongswan/plugins/cmac/cmac.h @@ -14,6 +14,11 @@ */ /** + * Cipher-based Message Authentication Code (CMAC). + * + * This class implements the message authentication algorithm + * described in RFC 4493. + * * @defgroup cmac cmac * @{ @ingroup cmac_p */ @@ -21,58 +26,23 @@ #ifndef CMAC_H_ #define CMAC_H_ -#include <crypto/crypters/crypter.h> - -typedef struct cmac_t cmac_t; +#include <crypto/prfs/prf.h> +#include <crypto/signers/signer.h> /** - * Cipher-based Message Authentication Code (CMAC). + * Creates a new prf_t object based on a CMAC. * - * This class implements the message authentication algorithm - * described in RFC 4493. + * @param algo algorithm to implement + * @return prf_t object, NULL if not supported */ -struct cmac_t { - - /** - * Generate message authentication code. - * - * If buffer is NULL, no result is given back. A next call will - * append the data to already supplied data. If buffer is not NULL, - * the mac of all apended data is calculated, returned and the internal - * state is reset. - * - * @param data chunk of data to authenticate - * @param buffer pointer where the generated bytes will be written - */ - void (*get_mac) (cmac_t *this, chunk_t data, u_int8_t *buffer); - - /** - * Get the block size of this cmac_t object. - * - * @return block size in bytes - */ - size_t (*get_block_size) (cmac_t *this); - - /** - * Set the key for this cmac_t object. - * - * @param key key to set - */ - void (*set_key) (cmac_t *this, chunk_t key); - - /** - * Destroys a cmac_t object. - */ - void (*destroy) (cmac_t *this); -}; +prf_t *cmac_prf_create(pseudo_random_function_t algo); /** - * Creates a new cmac_t object. + * Creates a new signer_t object based on a CMAC. * - * @param algo underlying crypto algorithm - * @param key_size key size to use, if required for algorithm - * @return cmac_t object, NULL if not supported + * @param algo algorithm to implement + * @return signer_t, NULL if not supported */ -cmac_t *cmac_create(encryption_algorithm_t algo, size_t key_size); +signer_t *cmac_signer_create(integrity_algorithm_t algo); #endif /** CMAC_H_ @}*/ |