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Analysis of a Known Offline E-Coin System

by Sattar J. Aboud, Ammar Agoun
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 98 - Number 15
Year of Publication: 2014
Authors: Sattar J. Aboud, Ammar Agoun
10.5120/17261-7613

Sattar J. Aboud, Ammar Agoun . Analysis of a Known Offline E-Coin System. International Journal of Computer Applications. 98, 15 ( July 2014), 27-30. DOI=10.5120/17261-7613

@article{ 10.5120/17261-7613,
author = { Sattar J. Aboud, Ammar Agoun },
title = { Analysis of a Known Offline E-Coin System },
journal = { International Journal of Computer Applications },
issue_date = { July 2014 },
volume = { 98 },
number = { 15 },
month = { July },
year = { 2014 },
issn = { 0975-8887 },
pages = { 27-30 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume98/number15/17261-7613/ },
doi = { 10.5120/17261-7613 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:26:18.413718+05:30
%A Sattar J. Aboud
%A Ammar Agoun
%T Analysis of a Known Offline E-Coin System
%J International Journal of Computer Applications
%@ 0975-8887
%V 98
%N 15
%P 27-30
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In 2012, Fan et al. presented the user recoverable offline e-coin system with rapid anonymity revoking. The authors claimed that their system can accomplish the security needs of e-coin scheme such as unlinkability, over-spending checking, anonymity control and rapid anonymity revoking on over-spending. They added prove unforgeability characteristic. But, in this paper we demonstrate that a system cannot reach the two proven security characteristics, unlinkability and anonymity. So, we adjust the scheme to contain these two characteristics which are vital in any e-coin scheme.

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Index Terms

Computer Science
Information Sciences

Keywords

Digital signatures discrete logarithm problem cryptanalysis RSA e-commerce and payment

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