Mutual Authentication and Key Exchange Protocols for Roaming Services in Wireless Mobile Networks

Two novel mutual authentication and key exchange protocols with anonymity are proposed for different roaming scenarios in the global mobility network. The new features in the proposed protocols include identity anonymity and one-time session key renewal. Identity anonymity protects mobile users privacy in the roaming network environment. One-time session key progression frequently renews the session key for mobile users and reduces the risk of using a compromised session key to communicate with visited networks. It has demonstrated that the computation complexity of the proposed protocols is similar to the existing ones, while the security has been significantly improved

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