Paper 2004/313 Original: eprint.iacr.org/2004/313 ↗
Cryptanalysis of a threshold proxy signature with known signers
Abstract
A scheme of threshold proxy signature with known signers was proposed by Hwang et al. In their scheme, the receiver can identify the proxy signers that actually generated a proxy signature. Tzeng et al. demonstrated that this signature scheme is insecure and proposed an improvement to mend the information leakage. This paper shows that the improved scheme is still insecure under the original signer¡¦s forgery attack.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2004-11-17: last updated
- 2004-11-17: published
- Short URL
- https://ia.cr/2004/313
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2004/313,
author = {Fuw-Yi Yang and Jinn-Ke Jan and Woei-Jiunn Jeng},
title = {Cryptanalysis of a threshold proxy signature with known signers},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/313},
year = {2004},
url = {https://eprint.iacr.org/2004/313}
}