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www.cs.dartmouth.edu/~sws/abstracts/gsty96.shtml
Last modified: 08/27/03 11:56:51 AM
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H. Gobioff, S.W. Smith, J.D. Tygar, B.S. Yee.
``Smart Cards in Hostile Environments.''
2nd USENIX Workshop on Electronic Commerce.
1996.
Abstract
One often hears the claim that smart cards are the solution to a
number of security problems, including those arising in point-of-sale
systems. In this paper, we characterize the minimal properties
necessary for the secure smart card point-of-sale transactions. Many
proposed systems fail to provide these properties: problems arise
from failures to provide secure communication channels between the
user and the smart card while operating in a potentially
hostile environment (such as a point-of-sale application.) Moreover,
we discuss several types of modifications that can be made to give
smart cards additional in- put/output capacity with a user, and
describe how this additional I/O can address the hostile
environment problem. We give a notation for describing the
effectiveness of smart cards under various environmental
assumptions. We discuss several security equivalences among different
scenarios for smart cards in hostile environments.
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