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SUMMARY:Smart-card based authentication on an insecure network - Peter Swe
 eney\, Centre for Communication Systems Research\, University of Surrey.
DTSTART:20070530T131500Z
DTEND:20070530T141500Z
UID:TALK6892@talks.cam.ac.uk
CONTACT:Timothy G. Griffin
DESCRIPTION:Standard means of authentication use PINs over secure terminal
 s or secure networks.  However there are many applications where proper au
 thentication would be valuable\, but the user may be connected to an insec
 ure network\, particularly the internet.  In such circumstances\, use of a
  PIN is inappropriate because of the ease of eavesdropping.\n\nThe work re
 ported arose from an FP5 project to create a new 32-bit USB smart card and
  associated applets.  The requirements are discussed and an image-based au
 thentication method is described.  Experimental work showed that the metho
 d was usable\, but it has the potential disadvantage that no proof exists 
 for its security.  Moreover\, it requires connection to an online database
  of images.  \n\nAs an alternative\, a method of provable security is put 
 forward\, which is potentially very suitable for implementation on a smart
  card.  However the usability of the method is in question.  There is also
  a potential active attack against this method\, even though no strategy f
 or the attack has yet been designed.\n\nSpeaker:\nPeter Sweeney is a Reade
 r in the Centre for Communication Systems Research at the University of Su
 rrey.  His main interests have always been in error-control coding\, but a
 s a side line he has also pursued research in other aspects of information
  theory\, particularly cryptology and steganography.
LOCATION:Lecture Theatre 1\, Computer Laboratory
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