- removed key from constructor

- added set_key

Source/charon/transforms/prfs/prf.c

@@ -29,13 +29,13 @@
 /*
  * Described in header
  */
-prf_t *prf_create(pseudo_random_function_t pseudo_random_function, chunk_t key)
+prf_t *prf_create(pseudo_random_function_t pseudo_random_function)
 {
 	switch (pseudo_random_function)
 	{
 		case PRF_HMAC_SHA1:
 		{
-			return (prf_t*)prf_hmac_sha1_create(key);
+			return (prf_t*)prf_hmac_sha1_create();
 		}
 		case PRF_HMAC_MD5:
 		case PRF_HMAC_TIGER:

Source/charon/transforms/prfs/prf.h

@@ -64,6 +64,14 @@ struct prf_s {
 	 */
 	size_t (*get_block_size) (prf_t *this);
 	
+	/**
+	 * @brief Set the key for this prf
+	 * 
+	 * @param this			calling prf
+	 * @return				block size in bytes
+	 */
+	status_t (*set_key) (prf_t *this, chunk_t key);
+	
 	/**
 	 * @brief Destroys a prf object.
 	 *
@@ -78,11 +86,10 @@ struct prf_s {
  * Creates a new prf_t object
  * 
  * @param pseudo_random_function	Algorithm to use
- * @param key						A chunk containing the key
  * @return
  * 									- prf_t if successfully
  * 									- NULL if out of ressources or prf not supported
  */
-prf_t *prf_create(pseudo_random_function_t pseudo_random_function, chunk_t key);
+prf_t *prf_create(pseudo_random_function_t pseudo_random_function);
 
 #endif /*PRF_H_*/

Source/charon/transforms/prfs/prf_hmac_sha1.c

@@ -44,7 +44,7 @@ struct private_prf_hmac_sha1_s {
 /*
  * Described in header
  */
-prf_hmac_sha1_t *prf_hmac_sha1_create(chunk_t key)
+prf_hmac_sha1_t *prf_hmac_sha1_create()
 {
 	private_prf_hmac_sha1_t *this = allocator_alloc_thing(private_prf_hmac_sha1_t);
 	

Source/charon/transforms/prfs/prf_hmac_sha1.h

@@ -45,11 +45,10 @@ struct prf_hmac_sha1_s {
 /**
  * Creates a new prf_hmac_sha1_t object
  * 
- * @param key						Key to use for this prf
  * @return
  * 									- prf_hmac_sha1_t if successfully
  * 									- NULL if out of ressources
  */
-prf_hmac_sha1_t *prf_hmac_sha1_create(chunk_t key);
+prf_hmac_sha1_t *prf_hmac_sha1_create();
 
 #endif /*PRF_HMAC_SHA1_H_*/