A Fast Authentication and Key Agreement Protocol Based on Time-Sensitive Token for Mobile Edge Computing

ALGORITHMS AND ARCHITECTURES FOR PARALLEL PROCESSING, ICA3PP 2021, PT III(2022)

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摘要
Compared with cloud computing, Mobile Edge Computing (MEC) can sink some services and functions located in cloud servers to edge nodes to reduce network latency and provide real-time services. However, MEC not only inherits the security issues in cloud computing, but also faces new security risks. To ensure the security and privacy of messages transmitted in the channel, a secure Authentication and Key Agreement (AKA) protocol is essential. However, the existing AKA protocols are not lightweight enough or require a cloud server or a trusted third party to participate in the authentication process. Therefore, this paper designs a fast AKA protocol based on time-sensitive token for MEC. With this protocol, the terminal node can achieve fast authentication through the applied token, and the authentication process only requires a related edge node to participate. Simulation results based on ProVerif and informal security analysis show that our protocol can resist various common attacks. The comparison with related protocols shows that our protocol only needs to spend very little computational and communicational cost to authenticate a terminal node with a token.
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关键词
Authentication, Cryptography, Key agreement, Mobile edge computing, Security
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