We propose two novel e-coupon systems that can achieve the following new properties: (1) The coupon issuer (or service provider) can trace the identity of a dishonest user while the identity privacy (or anonymity) of a honest user is still well ...
Trading is a mutually agreeable process. Buyers hope that they can buy their favorite goods or services through trading, and merchants hope that they can obtain a reasonable profit. If friends or family of a buyer are interested in the same commodity or ...
Previous work on electronic coupon (e-coupon) systems mainly focused on security properties such as unforgeability, double-redemption detection, and anonymity/unlinkability. However, achieving both traceability against dishonest users and ...
IEEE Computer Society
United States
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