计算机应用与软件2018，Vol.35Issue(1)：312-317,6.DOI:10.3969/j.issn.1000-386x.2018.01.054
理想格上基于身份的代理签名
IDENTITY-BASED PROXY SIGNATURE SCHEME OVER IDEAL LATTICES
欧海文 1范祯 2蔡斌思 2杨明曌1
作者信息
- 1. 北京电子科技学院 北京100071
- 2. 西安电子科技大学 陕西西安710071
- 折叠
摘要
Abstract
Because of the rapid development of information,proxy signature is becoming more and more important in the electronic authentication.The existing proxy signature technology is mostly based on bilinear pair,but it is not safe under quantum attack.So a series of lattice-based proxy signature schemes have been proposed and an obvious problem is that the size of the key and signature is too large in these schemes.The new proxy signature scheme had a shorter key and signature,it utilized the special structure of the ideal lattice and trapdoor generation algorithm,pre-image sampling algorithm,trapdoor delegation algorithm.First,the scheme proved the unforgeability of the authorization method.Secondly,based on the difficulty of ring SIS problem when,it proved the strong unforgeability against selective identity and static chosen message attacks.Compared with the existing scheme,the scheme had a simpler way of authorization.The size of key and signature was relatively short,thus it improved operational efficiency.关键词
理想格/基于身份/小整数解/代理签名Key words
Ideal lattice/Identity-based/Small integer solution/Proxy signature分类
信息技术与安全科学引用本文复制引用
欧海文,范祯,蔡斌思,杨明曌..理想格上基于身份的代理签名[J].计算机应用与软件,2018,35(1):312-317,6.
