An Efficient Strong Asymmetric PAKE Compiler Instantiable from Group Actions

ePrint Report: An Efficient Strong Asymmetric PAKE Compiler Instantiable from Group Actions

Ian McQuoid, Jiayu Xu

Password-authenticated key exchange (PAKE) is a class of protocols enabling two parties to convert a shared (possibly low-entropy) password into a high-entropy joint session key. Strong asymmetric PAKE (saPAKE), an extension that models the client-server setting where servers may store a client's password for repeated authentication, was the subject of standardization efforts by the IETF in 2019-20. In this work, we present the most …

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