Recoverable and untraceable E-cash

Joseph K. Liu, Patrick P. Tsang, Duncan S. Wong

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

15 Citations (Scopus)

Abstract

In an electronic cash (e-cash) system, Recoverability means once you have lost your e-cash, you still can get back the amount of e-cash that you have lost. Untraceability means no one can trace where and when you have spent your e-cash. Obviously these are conflicting properties in an e-cash system. Most of the e-cash systems proposed in the literature do not include recoverability. Although some of them such as [17] contain recoverability, it is an on-line e-cash system. In this paper, we propose a new efficient e-cash protocol which possesses these two properties simultaneously. At the same time, it still remains off-line.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Pages206-214
Number of pages9
Publication statusPublished - 1 Dec 2005
Externally publishedYes
Event2nd European PKI Workshop: Research and Applications, EuroPKI 2005 - Canterbury, United Kingdom
Duration: 30 Jun 20051 Jul 2005

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3545 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference2nd European PKI Workshop: Research and Applications, EuroPKI 2005
CountryUnited Kingdom
CityCanterbury
Period30/06/051/07/05

Keywords

  • E-Cash
  • Recoverable
  • Untraceable

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