A handy multi-coupon system

  title={A handy multi-coupon system},
  author={S{\'e}bastien Canard and Aline Gouget and Emeline Hufschmitt},
  journal={IACR Cryptology ePrint Archive},
A coupon is an electronic data that represents the right to access a service provided by a service provider (e.g. gift certificates or movie tickets). Recently, a privacyprotecting multi-coupon system that allows a user to withdraw a predefined number of single coupons from the service provider has been proposed by Chen et al. at Financial Crypto 2005. In this system, every coupon has the same value which is predetermined by the system. The main drawbacks of Chen et al. proposal are that the… CONTINUE READING

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