Abstract
Three-party key exchange, where two clients aim to agree a session key with the help of a trusted server, is prevalent in present-day systems. In this paper, we present a practical and secure three-party password-based authenticated key exchange protocol over ideal lattices. Aside from hash functions our protocol does not rely on external primitives in the construction and the security of our protocol is directly relied on the Ring Learning with Errors (RLWE) assumption. Our protocol attains provable security. A proof-of-concept implementation shows our protocol is indeed practical.
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CITATION STYLE
Liu, C., Zheng, Z., Jia, K., & You, Q. (2019). Provably Secure Three-Party Password-Based Authenticated Key Exchange from RLWE. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 11879 LNCS, pp. 56–72). Springer. https://doi.org/10.1007/978-3-030-34339-2_4
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