Use mac_t and PRF and signer wrappers in cmac plugin

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_ @}*/