Title :
Cryptanalysis of "An Improved Remote Password Authentication Scheme with Smartcard"
Author :
Khan, Muhammad Khurram ; Debiao He
Author_Institution :
Center of Excellence in Inf. Assurance, King Saud Univ., Riyadh, Saudi Arabia
Abstract :
Recently, an improved remote user authentication scheme using smartcard was proposed. The authentication scheme by J. Chao claimed that it could provide user anonymity and withstand various attacks. In this paper, we analyze the security of Chao´s scheme and point out that his scheme cannot provide user anonymity. Moreover, we demonstrate that his scheme cannot withstand the user masquerade attack and the server masquerade attack.
Keywords :
cryptography; smart cards; Chao scheme; cryptanalysis; improved remote password authentication scheme; server masquerade attack; smartcard; Authentication; Chaotic communication; Computers; Dictionaries; Servers; Smart cards; authentication scheme; dynamic ID; masquerade attack; smart card;
Conference_Titel :
Trust, Security and Privacy in Computing and Communications (TrustCom), 2013 12th IEEE International Conference on
Conference_Location :
Melbourne, VIC
DOI :
10.1109/TrustCom.2013.212