Privacy-Preserved Key Agreement with User Authentication

With the progress of information technology, thecomputer crimes are emerging in an endless stream. It is because of the user's privacy should be protected, when the user submit a service request to the service provider, both of them should check the identity of the other, and then build a shared key to accomplish the service request. In this paper, we adopt the identity-based cryptosystem and the elliptic curve cryptosystem to design a privacy-preserved key agreement with user authentication. This protocol can achieve several properties: mutual authentication, deniability, and forward secrecy. Besides, the performance of the proposed protocol based on RSA is better than previous studies.