Token-mediated certification and electronic commerce

  • Authors:
  • Daniel E. Geer, Jr.;Donald T. Davis

  • Affiliations:
  • Open Market, Inc., Cambridge, Mass.;Open Market, Inc., Cambridge, Mass.

  • Venue:
  • WOEC'96 Proceedings of the 2nd conference on Proceedings of the Second USENIX Workshop on Electronic Commerce - Volume 2
  • Year:
  • 1996

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Abstract

Public key technology presumes the availability of certificates and certifying authorities (CAs) living within a shallow hierarchy rooted at a few (n ≪ 100) public CAs. We propose an alternative that lessens the day-today dependence on centralized CAs while deepening the certificate tree. We do this by suggesting that smartcards provide CA functions, thus re-framing some payment problems as simpler authorization problems.