An Off-line Payment System Based on a Group Blind Signature Scheme
نویسنده
چکیده
Maitland and Boyd proposed at ICICS 2001 an offline electronic cash system based on the group signature scheme. Their scheme cannot be used to solve blackmailing and other anonymity problems such as money laundering and illegal purchases. In this paper we extend the electronic cash system of Maitland and Boyd to prevent blackmailing, money laundering and illegal purchases by using a secure coalition-resistant group blind signature scheme. Also, our electronic cash system ensures traceability of double spenders.
منابع مشابه
An Off-Line Electronic Payment Scheme based on Publicly Verifiable Secret Sharing
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