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内容説明 This book constitutes the thoroughly refereed post-proceedings of the 8th International Conference on Financial Cryptography， FC 2004， held in Key West， FL， USA， in February 2004. The 17 revised full papers presented together with abstracts of 4 invited talks and 4 panel statements were carefully reviewed and selected for inclusion in the book. The papers are organized in topical sections on loyalty and micropayment systems， user authentication， e-voting， auctions and lotteries， game theoretic and cryptographic tools， and mix networks and anonymous communications.