Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/1957/3045
Title: Cryptanalysis and enhancement of authentication protocols
Authors: Koç, Çetin K.
Wang, Zhongfeng
Traylor, Roger
Schmidt, Thomas
Baker, Greg
Keywords: authentication
guessing attack
crytanalysis
DOS attack
replay attack
impersonation attack
stolen-verifier attack
Issue Date: 16-Oct-2013
Description: Graduation date: 2007
Authentication protocols play important roles in network security. A variety of authentication protocols ranging from complex public-key cryptosystems to simple password-based authentication schemes have been proposed. However, currently there is no fully secure authentication scheme that can resist all known attacks. When a user authentication is performed over an insecure network, additional problems arise due to the fact that the communication may be intercepted, or even altered, by an attacker. In general, one cannot assume that there is a secure channel between the client and the server. In this dissertation, we present specific cryptanalytic attacks on existing protocols and show their vulnerabilities in order to design more secure protocols. In particular, we propose improved security schemes to overcome certain security defects with registration, login, and password/identifier-change schemes. We also propose new authentications schemes which are more secure against guessing, stolen-verifier, replay, denial-of-service, and impersonation attacks than the existing protocols.
URI: http://koha.mediu.edu.my:8181/xmlui/handle/1957/3045
Other Identifiers: http://hdl.handle.net/1957/3045
Appears in Collections:ScholarsArchive@OSU

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