Paper 2009/458 Original: eprint.iacr.org/2009/458 ↗
Security Analysis and Design of Proxy Signature Schemes over Braid Groups
Abstract
The braid groups have attracted much attention as a new platform of constructing cryptosystems. This paper firstly analyzes the security vulnerabilities of existing proxy signature schemes over braid groups and presents feasible attacks. Then a new proxy signature scheme is proposed based on the difficulty of the conjugacy search problem and the multiple conjugacy search problem. Security analysis shows that the proposed scheme satisfies the security requirements of proxy signature.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2009-09-20: last updated
- 2009-09-20: published
- Short URL
- https://ia.cr/2009/458
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2009/458,
author = {Wei Yun and Xiong Guo-hua and Zhang Xing-kai and Bao Wan-su},
title = {Security Analysis and Design of Proxy Signature Schemes over Braid Groups},
howpublished = {Cryptology {ePrint} Archive, Paper 2009/458},
year = {2009},
url = {https://eprint.iacr.org/2009/458}
}