-static void hmac_md5 (unsigned char *password, size_t pass_len,
- unsigned char *challenge, size_t chal_len,
- unsigned char *response, size_t resp_len)
+void hmac_md5 (const unsigned char *password, size_t pass_len,
+ const unsigned char *challenge, size_t chal_len,
+ unsigned char *response, size_t resp_len)