Paper 2014/046
Crypto-analyses on “user efficient recoverable off-line e-cashs scheme with fast anonymity revoking”
Yalin Chen and Jue-Sam Chou
Abstract
Recently, Fan et al. proposed a user efficient recoverable off-line e-cash scheme with fast anonymity revoking. They claimed that their scheme could achieve security requirements of an e-cash system such as, anonymity, unlinkability, double spending checking, anonymity control, and rapid anonymity revoking on double spending. They further formally prove the unlinkability and the un-forgeability security features. However, after crypto-analysis, we found that the scheme cannot attain the two proven security features, anonymity and unlinkability. We, therefore, modify it to comprise the two desired requirements which are very important in an e-cash system.
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Preprint. MAJOR revision.
- Keywords
- anonymityunlikabilitycryptanalysis
- Contact author(s)
- jschou @ mail nhu edu tw
- History
- 2014-01-20: received
- Short URL
- https://ia.cr/2014/046
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2014/046,
author = {Yalin Chen and Jue-Sam Chou},
title = {Crypto-analyses on “user efficient recoverable off-line e-cashs scheme with fast anonymity revoking”},
howpublished = {Cryptology {ePrint} Archive, Paper 2014/046},
year = {2014},
url = {https://eprint.iacr.org/2014/046}
}
