计算机工程2011，Vol.37Issue(11)：158-159,175,3.DOI:10.3969/j.issn.1000.3842.2011.11.054
辫群上的可转换认证加密方案
Convertible Authenticated Encryption Scheme over Braid Group
摘要
Abstract
The rapid development of quantum computing brings great challenges to public key cryptosystems.The braid group, which is non-commutative, provides a new platform of constructing cryptographic protocols.A convertible authenticated encryption scheme over braid group is proposed on the difficulty of conjugacy search problem and multiple conjugacy problem, in which only the designated receiver can recover and authenticate the message, when the sender repudiates the signature, the receiver can prove the dishonesty of the sender by converting the signature to an ordinary one without the cooperating of the sender.As for the resistance against quantum attacks, the proposed scheme has advantage over the schemes based on commutative algebraic structures.关键词
辫群/共轭搜索问题/多重共轭搜索问题/可转换认证加密Key words
braid group/ conjugacy search problem/ multiple conjugacy search problem/ convertible authenticated encryption分类
信息技术与安全科学引用本文复制引用
裴俐春,隗云,熊国华,张兴凯..辫群上的可转换认证加密方案[J].计算机工程,2011,37(11):158-159,175,3.基金项目
国家"863"计划基金资助项目(2009AA01Z438) （2009AA01Z438）
