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https://ah.lib.nccu.edu.tw/handle/140.119/74497
題名: | Identity-based password-authenticated key exchange for client/server model | 作者: | Yi, X.;Tso, Ray-Lin;Okamoto, E. 左瑞麟 |
貢獻者: | 資科系 | 關鍵詞: | 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 | 日期: | 2012 | 上傳時間: | 10-四月-2015 | 摘要: | 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. | 關聯: | SECRYPT 2012 - Proceedings of the International Conference on Security and Cryptography | 資料類型: | conference |
Appears in Collections: | 會議論文 |
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