Study on a new anti-attack key agreement protocol

Since the Diffie-Hellman key exchange protocol lacks the authentication for identity,it might be suffered from the man-in-the-middle and replay attack.In order to resolve this bug,a modified Diffie-Hellman key exchange protocol-AADH protocol was put forward.The AADH protocol has introduced some new technologies,such as key authentication,timestamps and random numbers which is the marker of communication.The analysis of the performance showed that due to the safe performance of Diffie-Hellman protocol,AADH protocol has high ability in fighting back the man-in-the-middle and replay attacks.