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-rw-r--r--hmac_digest.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/hmac_digest.c b/hmac_digest.c
index caee756..9cc4271 100644
--- a/hmac_digest.c
+++ b/hmac_digest.c
@@ -10,28 +10,24 @@
* `libsha2_hmac_update` and `libsha2_hmac_update`
* can be called again
*
- * @param state The state of the algorithm
- * @param data Data to feed into the algorithm
- * @param n The number of bytes to feed into the algorithm
- * @param output The output buffer for the hash, it will be as
- * large as for the underlaying hash algorithm
- * @return Zero on success, -1 on error
+ * @param state The state of the algorithm
+ * @param data Data to feed into the algorithm
+ * @param n The number of bytes to feed into the algorithm
+ * @param output The output buffer for the hash, it will be as
+ * large as for the underlaying hash algorithm
*/
-int
+void
libsha2_hmac_digest(struct libsha2_hmac_state *restrict state, const void *data, size_t n, void *output)
{
if (!state->inited) {
- if (libsha2_init(&state->sha2_state, state->sha2_state.algorithm))
- return -1;
+ libsha2_init(&state->sha2_state, state->sha2_state.algorithm);
libsha2_update(&state->sha2_state, state->ipad, state->sha2_state.chunk_size * 8);
}
libsha2_digest(&state->sha2_state, data, n, output);
- if (libsha2_init(&state->sha2_state, state->sha2_state.algorithm))
- return -1;
+ libsha2_init(&state->sha2_state, state->sha2_state.algorithm);
libsha2_update(&state->sha2_state, state->opad, state->sha2_state.chunk_size * 8);
libsha2_digest(&state->sha2_state, output, state->outsize, output);
state->inited = 0;
- return 0;
}