Secondly, the UAP protocol is analysed, because the key confirmation completely lies on the long-term private key, so it does not achieve forward secrecy, and resists key-compromise impersonation.

• 其次,对UAP协议进行安全分析,由于其确认密钥完全依赖于服务器的长期私钥,因此它不具有前向保密性和密钥泄漏的安全性。