+bool cipher_set_counter(cipher_t *cipher, const void *counter, size_t len) {
+ if(len > cipher->cipher->block_size - 4) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Counter too long");
+ abort();
+ }
+
+ memcpy(cipher->counter->counter + cipher->cipher->block_size - len, counter, len);
+ memset(cipher->counter->counter, 0, 4);
+ cipher->counter->n = 0;
+
+ return true;
+}
+