Recoverable and untraceable E-cash
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IEEE
(0) (0 Votes)Views: (2002) Date: (Publication Date: 2001) Pages: () -
Author: Liu J.K. Wei V.K. Wong S.H. Dept. of Inf. Eng. Chinese Univ. of Hong Kong Shatin;
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Abstract: Abstract Recoverabi lity and untraceability are two obviously conflicting properties. Most previous E-cash work do not include recoverability. Although the E-cash system in Schoenmakers (1997) contains recovery, it is an on-line E-cash system. We introduce a new E-cash protocol which possesses these two properties simultaneously. At the same time, it still remains off-line. Certain tradeoffs are discussed also. Our protocol is motivated by the single-term off-line untraceable E-cash systems in Ferguson (1994), and Brands (1993)
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