Security Analysis and Design of Proxy Signature Schemes over Braid Groups

Wei Yun; Xiong Guo-hua; Zhang Xing-kai; Bao Wan-su

Paper 2009/458

Security Analysis and Design of Proxy Signature Schemes over Braid Groups

Wei Yun, Xiong Guo-hua, Zhang Xing-kai, and Bao Wan-su

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: Published elsewhere. Unknown where it was published
Contact author(s): weiyun456 @ sohu com
History: 2009-09-20: received
Short URL: https://ia.cr/2009/458
License: CC BY

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}
}