Linkability in Practical Electronic Cash Design
Maitland, Gregory M., Reid, Jason F., Foo, Ernest, Boyd, Colin A., & Dawson, Edward P. (2000) Linkability in Practical Electronic Cash Design. In Third Information Security Workshop (ISW 2000), 20-21 December, 2000, Wollongong, Australia.
Designing a practical and complete electronic cash scheme has proved difficult. Designs must seek to optimise often conflicting metrics such as efficiency, anonymity, the ability to make exact payments. Gains in one area often result in a loss in one or more other areas. Several schemes have accepted linkability of some payments as a concession to getting the balance right. A point that has not been highlighted is the problem of preventing linking between payments made with different linkable coins. This paper reviews several electronic cash schemes which have the linkability property and concludes that linking across coins is of significant practical concern. Design improvements are suggested along with observations regarding the user's active role in preserving anonymity.
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|Item Type:||Conference Paper|
|Keywords:||electronic cash, linkability, anonymity|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DATA FORMAT (080400) > Data Format not elsewhere classified (080499)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2000 Springer|
|Copyright Statement:||This is the author-version of the work. Conference proceedings published, by Springer Verlag, will be available via SpringerLink: http://www.springer.de/comp/lncs/ Lecture Notes in Computer Science|
|Deposited On:||10 Aug 2004|
|Last Modified:||09 Jun 2010 12:21|
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