Research On ID-Based Authenticated Key Agreement Protocol

To solve the security problem that exists in ID-based Authenticated Key Agreement Protocol, this paper proposes a improved ID-based authenticated key exchange protocol. Bilinear pairing method is used in this protocol to solve the problems resulting from PKG-forward secrecy, temporary or long-term private key and temporary session key leakage attacks. And the session key is calculated by the long-term private keys and ephemeral private keys of parties. After confirming the correctness,analyzes the security and the performance of the improved protocol,and the formal analysis based on SVO shows fulfilled authentication and security. Results show that it satisfies all the security requirements of an ID-based authenticated key exchange.Comparing with other existing protocols, it is more safer and has higher efficiency.