CS seminar on Nov 28 2012 - 13:40 - 14:30 - FENS L035
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  • CS seminar on Nov 28 2012 - 13:40 - 14:30 - FENS L035

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Title  : A secure and private RFID authentication protocol
         based on quadratic residue
Speaker: Suleyman Kardas (TUBITAK-BILGEM/Sabanci University)
Date   : Nov 28, 2012
Time   : 13:40
Place  : FENS L035

Please find below the abstract of the talk and a short bio of our speaker.

Kind regards,


Radio Frequency IDentification based systems are getting pervasively
deployed in many real-life applications in various settings for
identification and authentication of remote objects. However, the
messages that are transmitted over a insecure channel, are vulnerable
to security and privacy concerns such as data privacy, location privacy
of tag owner, etc. Recently, Yeh et al. proposed an RFID authentication
protocol based on quadratic residue which is claimed to provide
location privacy and prevent possible attacks. In this work,
we formally analyzed the protocol and we proved that the protocol
provides destructive privacy according to Vaudenay privacy model.
Moreover, we proposed a unilateral authentication protocol and we prove
that our protocol satisfies higher privacy level such as narrow strong
privacy. Besides, we proposed an enhanced version of our proposed
protocol, which has same privacy level as Yeh et al protocol, but has
reader authentication against stronger adversaries. Furthermore, the
enhanced version of our protocol uses smaller number of cryptographic
operations when compared to Yeh et al protocol and it is also cost
efficient at the server and tag side and requires O(1) complexity to
identify an RFID tag.

Süleyman Kardaş has received his BSc and MSc degrees in Industrial
Engineering and Computer Science and Engineering from Bilkent
University in 2006 and 2008. He has been working as a Senior Researcher
at The National Research Institute of Electronics and Cryptology at
TUBITAK BILGEM since 2008. He has started his PhD studies in Fall 2010
at Sabancı University with Albert Levi. His research area is related to
cryptography and information security: Designing and Crypt-analyzing
Cryptographic Protocols, RFID Security & Privacy and Private
Information Retrieval.