libtock: hmac: correct buffer arg name

Author: bradjc

libtock/crypto/hmac.c

@@ -11,7 +11,7 @@ static void hmac_upcall(int ret,
 returncode_t libtock_hmac_simple(libtock_hmac_algorithm_t hmac_type,
                                  uint8_t* key_buffer, uint32_t key_length,
                                  uint8_t* input_buffer, uint32_t input_length,
-                                 uint8_t* hash_buffer, uint32_t hash_length,
+                                 uint8_t* hmac_buffer, uint32_t hmac_length,
                                  libtock_hmac_callback_hmac cb) {
 
   returncode_t ret;
@@ -25,7 +25,7 @@ returncode_t libtock_hmac_simple(libtock_hmac_algorithm_t hmac_type,
   ret = libtock_hmac_set_readonly_allow_data_buffer(input_buffer, input_length);
   if (ret != RETURNCODE_SUCCESS) return ret;
 
-  ret = libtock_hmac_set_readwrite_allow_destination_buffer(hash_buffer, hash_length);
+  ret = libtock_hmac_set_readwrite_allow_destination_buffer(hmac_buffer, hmac_length);
   if (ret != RETURNCODE_SUCCESS) return ret;
 
   ret = libtock_hmac_set_upcall(hmac_upcall, cb);

libtock/crypto/hmac.h

@@ -27,7 +27,7 @@ typedef enum {
 returncode_t libtock_hmac_simple(libtock_hmac_algorithm_t hmac_type,
                                  uint8_t* key_buffer, uint32_t key_length,
                                  uint8_t* input_buffer, uint32_t input_length,
-                                 uint8_t* hash_buffer, uint32_t hash_length,
+                                 uint8_t* hmac_buffer, uint32_t hmac_length,
                                  libtock_hmac_callback_hmac cb);
 
 #ifdef __cplusplus