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Round-Optimal Password-Based Authenticated Key Exchange

Katz, Jonathan ; Vaikuntanathan, Vinod

Journal of cryptology, 2013-10, Vol.26 (4), p.714-743 [Periódico revisado por pares]

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Título:
Round-Optimal Password-Based Authenticated Key Exchange
Autor: Katz, Jonathan ; Vaikuntanathan, Vinod
Assuntos: Applied sciences ; Authentication ; Coding and Information Theory ; Combinatorics ; Communications Engineering ; Computational Mathematics and Numerical Analysis ; Computer Science ; Computer systems ; Cryptography ; Exact sciences and technology ; Exchanging ; Information, signal and communications theory ; Networks ; Passwords ; Probability Theory and Stochastic Processes ; Signal and communications theory ; Telecommunications and information theory
É parte de: Journal of cryptology, 2013-10, Vol.26 (4), p.714-743
Descrição: We show a general framework for constructing password-based authenticated key-exchange protocols with optimal round complexity—one message per party, sent simultaneously—in the standard model, assuming the existence of a common reference string. When our framework is instantiated using bilinear-map-based cryptosystems, the resulting protocol is also (reasonably) efficient. Somewhat surprisingly, our framework can be adapted to give protocols in the standard model that are universally composable while still using only one (simultaneous) round.
Editor: Boston: Springer US
Idioma: Inglês

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