适用于多密级环境的移动存储设备互认证与密钥协商协议

Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-02 Cooperative journals: 《计算机应用研究》

冯力 郁滨 龚碧 周伟伟

Abstract： Considering the characteristics of multi-level environment, this paper proposes a mutual authentication and key negotiation protocol between removable storage devices and host terminals. There is no online authentication center and the protocol can be able to identify the confidentiality level. Based on the unforgeability of the digital signature from TTP (Trusted Third Party) and the difficulty of calculating the DLP (Discrete Logarithm Problem) , the protocol achieves mutual authentication between removable storage devices and host terminals through verifying the correctness of ciphertext encrypted by the negotiation key. Informal and formal analyses are put on the protocol. The analysis results show that the protocol has high security, small storage cost, low number of pre-shared authentication parameters and strong practicability compared with the similar protocols. This protocol can effectively solve the problem of confidentiality level identification and identity authentication of removable storage devices in multi-level environment. And it’s of great importance to the security management of removable storage devices.

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