科研之友
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摘要
Authenticated key agreement protocols play an important role for network-connected servers to authenticate remote users in Internet environment. In recent years, several authenticated key agreement protocols for single-server environment have been developed based on chaotic maps. In modern societies, people usually have to access multiple websites or enterprise servers to accomplish their daily personal matters or duties on work; therefore, how to increase user's convenience by offering multi-server authentication protocol becomes a practical research topic. In this study, a novel chaotic map-based anonymous multi-server authenticated key agreement protocol using smart card is proposed. In this protocol, a legal user can access multiple servers using only a single secret key obtained from a trusted third party, known as the registration center. Security analysis shows this protocol is secure against well-known attacks. In addition, protocol efficiency analysis is conducted by comparing the proposed protocol with two recently proposed schemes in terms of computational cost during one authentication session. We have shown that the proposed protocol is twice faster than the one proposed by Khan and He while preserving the same security properties as their protocol has.
- 出版日期2015-9-10
