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WANG Li-bin, PAN Jia-Xin, MA Chang-She. Efficient and Semantic Secure Password-Based Key Exchange Protocol[J]. Journal of South China Normal University (Natural Science Edition), 2010, 1(2).
Citation: WANG Li-bin, PAN Jia-Xin, MA Chang-She. Efficient and Semantic Secure Password-Based Key Exchange Protocol[J]. Journal of South China Normal University (Natural Science Edition), 2010, 1(2).

Efficient and Semantic Secure Password-Based Key Exchange Protocol

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  • Corresponding author:

    WANG Li-bin

  • Received Date: November 07, 2009
  • Revised Date: January 30, 2010
  • Key exchange protocol is aimed to exchange a secure common key for two entities. Password-based scheme is widely used, due to its high usability and central server independence. At present, how to design a secure password-based protocol, and how to prove its security are open problems. In this paper, an efficient and provably secure password-based key exchange protocol is proposed, using only hash function and XOR operator. The security of the protocol can be tightly reduced to the hardness of the computational Diffie-Hellman problem in random oracle model. Thus, the protocol is proved to be semantically secure against off-line dictionary attacks. Finally, compared with the related works, the protocol is more efficient with respect to computation and communication.

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