Title :
A Multi Way Tree for Token Based Authentication
Author :
Vipin, M. ; Sarad, A.V. ; Sankar, K.
Author_Institution :
AU-KBC Res. Centre, Anna Univ., Chennai
Abstract :
Tokens are popular in two factor authentication, where the first authentication credential is a fixed secret key s1 associated with the user and the second authentication credential is a dynamic secret key s2 generated by the token assigned to the user. Popular hardware tokens use a synchronized clock T along with a static secret key encoded into the token to generate a one time secret s2. The contribution of the paper is to eliminate this clock synchronization with the authentication server S and to detect unauthorized login attempts when an intruder is in possession of s1 or s2 but not both, with a high degree of certainty.
Keywords :
authorisation; cryptographic protocols; encoding; message authentication; private key cryptography; synchronisation; trees (mathematics); access control; authentication server; clock synchronization; dynamic secret key generation; multiway tree; static secret key encoding; token based authentication protocol; two-factor authentication credential; unauthorized login detection; Access control; Authentication; Clocks; Computer science; Cryptographic protocols; Cryptography; Hardware; Linear feedback shift registers; Software engineering; Synchronization; Access control; multi way tree; two factor authentication;
Conference_Titel :
Computer Science and Software Engineering, 2008 International Conference on
Conference_Location :
Wuhan, Hubei
Print_ISBN :
978-0-7695-3336-0
DOI :
10.1109/CSSE.2008.745
