naa a22 4500 510796435 CHVBK 20180411083338.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11277-011-0456-7 doi (NATIONALLICENCE)springer-10.1007/s11277-011-0456-7 A Smart Card Based Efficient and Secured Multi-Server Authentication Scheme [Elektronische Daten] [Bin Wang, Maode Ma] Increasing popularity of the multi-server architecture has propelled the research on the multi-server authentication schemes. Current dominating authentication schemes are smartcard based, verification table free schemes with passwords. Although these schemes have developed to be robust against most of the popular malicious attacks, they still have security weaknesses and their efficiency is generally low. In this paper, we analyze and formulate security issues in previously proposed schemes. And based on the formulation, an enhanced efficient and secure scheme is proposed. In the proposal, a novel "redundant key protection” is proposed to utilize. The proposed scheme is validated and verified by Colored Petri Nets. Springer Science+Business Media, LLC., 2012 Multi-server nationallicence Smartcard nationallicence Server spoofing attack nationallicence Impersonation attack nationallicence Offline dictionary attack nationallicence Colored petri net nationallicence Wang Bin School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore aut Ma Maode School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore aut Wireless Personal Communications Springer US; http://www.springer-ny.com 68/2(2013-01-01), 361-378 0929-6212 68:2<361 2013 68 11277 https://doi.org/10.1007/s11277-011-0456-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-011-0456-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Bin School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore aut NATIONALLICENCE 700 1- Ma Maode School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 68/2(2013-01-01), 361-378 0929-6212 68:2<361 2013 68 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer