uint32_t hashkit_md5(const char *key, size_t key_length, void *context);
HASHKIT_API
-void libhashkit_md5_signature(const unsigned char *key, uint32_t length, unsigned char *result);
+void libhashkit_md5_signature(const unsigned char *key, size_t length, unsigned char *result);
#ifdef __cplusplus
}