Title :
Weaknesses of a Verifier-Based Password-Authenticated Key Exchange Protocol in the Three-Party Setting
Author :
Pu, Qiong ; Liu, Wei
Author_Institution :
Dept. of Electron., Inf. Eng. Univ., Zhengzhou, China
Abstract :
Quite recently, Li et al´s suggested an efficient verifier-based password-authentication key exchange protocol via elliptic curves. In this paper, we shows that their protocol is still vulnerable to off-line dictionary attack and unknown key-share attack. Through our work, we hope the similar mistakes can be avoided in future designs.
Keywords :
cryptographic protocols; message authentication; public key cryptography; cryptanalysis; elliptic curves; off-line dictionary attack; unknown key-share attack; verifier-based password-authenticated key exchange protocol; Authentication; Computer science; Context; Dictionaries; Elliptic curves; Entropy; Large-scale systems; Peer to peer computing; Protection; Protocols; cryptanalysis; elliptic curve; password authenticated key exchange; three-party; verifier-based;
Conference_Titel :
Research Challenges in Computer Science, 2009. ICRCCS '09. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3927-0
Electronic_ISBN :
978-1-4244-5410-5
DOI :
10.1109/ICRCCS.2009.10
