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Title: Identity-based password-authenticated key exchange for client/server model
Authors: Yi, X.;Tso, Ray-Lin;Okamoto, E.
Contributors: 資科系
Keywords: Client needs;Client/server models;Cryptographic key;Diffie-Hellman problem;Formal model;ID-based;Identity Based Encryption;Identity-based;PAKE;Password-authenticated key exchange;Private key;Private key generators;Provable security;Secure communications;Without random oracles;Cryptography;Knowledge management;Authentication
Date: 2012
Issue Date: 2015-04-10 17:26:33 (UTC+8)
Abstract: Password-Authenticated Key Exchange for Client/Server model (PAKE-CS) is where a client and a server, based only on their knowledge of a password, establish a cryptographic key for secure communication. In this paper, we propose a PAKE-CS protocol on the basis of identity-based encryption, where the client needs to remember a password only while the server keeps the password in addition to a private key related to his identity, where the private key is generated by multiple private key generators. Our protocol takes advantage of the features of client/server model and is more efficient than other PAKE-CS protocols in terms that it achieves explicit authentication with two-round communications only. In order to analyze the security of our protocol, we construct an ID-based formal model of security for PAKE-CS by embedding ID-based model into PAKE model. If the underlying identity-based encryption scheme has provable security without random oracle, we can provide a rigorous proof of security for our protocol without random oracles.
Relation: SECRYPT 2012 - Proceedings of the International Conference on Security and Cryptography
Data Type: conference
Appears in Collections:[資訊科學系] 會議論文

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