-int silc_auth_verify_data(unsigned char *payload, uint32 payload_len,
- SilcAuthMethod auth_method, void *auth_data,
- uint32 auth_data_len, SilcHash hash,
- void *id, SilcIdType type)
+bool silc_auth_verify_data(const unsigned char *payload, SilcUInt32 payload_len,
+ SilcAuthMethod auth_method, const void *auth_data,
+ SilcUInt32 auth_data_len, SilcHash hash,
+ const void *id, SilcIdType type)