Accession Number : ADA303090

Title :   Smart Cards in Hostile Environments,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA SCHOOL OF COMPUTER SCIENCE

Personal Author(s) : Gobioff, Howard ; Smith, Sean ; Tygar, J. D.

PDF Url : ADA303090

Report Date : 14 SEP 1995

Pagination or Media Count : 7

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. This paper argues that many proposed smart card systems still lack effective security for point-of-sale applications. We consider the point-of-sale terminal as a potentially hostile environment to the smart card. Moreover, we discuss several types of modifications that can be made to smart cards to improve their security and address this problem. We prove a set of equivalences among a number of these modifications: (1) private input = private output; (2) trusted input + one-bit trusted output = trusted output + one-bit trusted input; and (3) secure input = secure output

Descriptors :   *DATA PROCESSING SECURITY, *INTERACTIONS, *COMPUTER APPLICATIONS, *HAND HELD, *CARDS, *CRIMES, INPUT, OUTPUT, ENVIRONMENTS, MODIFICATION, INPUT OUTPUT PROCESSING, PROBLEM SOLVING, SOLUTIONS(GENERAL), ADVERSE CONDITIONS, USER NEEDS.

Subject Categories : Sociology and Law
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE