Untraceable Off-line Cash in Wallets with Observers (Extended Abstract)

  • Authors:
  • Stefan Brands

  • Affiliations:
  • -

  • Venue:
  • CRYPTO '93 Proceedings of the 13th Annual International Cryptology Conference on Advances in Cryptology
  • Year:
  • 1993

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Abstract

We show how the electronic cash scheme in [Fer93a] can be extended to provide n-spendable coins. Furthermore, we show how observers can be incorporated in the protocols to provide prior restraint against double spending by the user, instead of just detection after the fact.