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Lecture notes in computer science

Password-Authenticated Group Key Agreement with Adaptive Security and Contributiveness

Michel Ferreira Abdalla, Dario Catalano, Céline Chevalier, David Pointcheval

Published Jan 1, 2009• 14 citations
Publisher
DOI
10.1007/978-3-642-02384-2_16

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Symmetry•Sep 13, 2023•13 citations
A new method based on certificateless authenticated key agreement protocols is proposed.A generalization of multi-party in Nalla agreement and tripartite key agreement,which can strongly overcome the key escrow is made.This new method shows that there is a short signature,which can increase theefficiency ofauthentication process.And it has used the key seed and password evolution scheme,which improved the security of the protocol.The new agreement satisfies much secure prosperity,for instance,forward security,against manin-the-middle resistance,impersonation attack resistance,and so on.
With the rapid development of quantum theory, the discrete logarithm problem and significant integer factorization problem have polynomial solution algorithms under quantum computing, and their security is seriously threatened. Therefore, a three-party password-authenticated key agreement scheme based on module learning with errors problem was proposed, and its security was proved in the BPR model. Compared with other password-authenticated key agreement protocols, the proposed protocol has higher efficiency and a shorter key length, which can resist quantum attacks. Therefore, the protocol is efficient and secure and suitable for large-scale network communication.