Efficient Authenticated Key Agreement Protocol Based on Signcryption

The key establishment protocol(called SKA) can not resist known temporary key and forward secrecy.Aiming at this problem,an efficient authenticated key agreement protocol based on signcryption is proposed.The proposed protocol uses elliptic curve cryptosystem technology under the computational Diffie-Hellman assumption,combines the long private key and short private key and implements the functions of mutual authentication and key confirmation.Analysis result proves that the efficiency and security of the proposed protocol are improved.