西安电子科技大学学报（自然科学版）Issue(2)：20-24,5.DOI:10.3969/j.issn.1001-2400.2014.02.004
格上的代理重签名方案
Proxy re-signature scheme over the lattice
摘要
Abstract
For the proxy insecurity of the re-signature schemes based on large integer factorization and the discrete logarithm problem in quantum environment,we present a proxy re-signature scheme that can resist the quantum attack. Using Xagawa’s proxy re-encryption technology and lattice signatures without trapdoors technology,we construct the first lattice-based proxy re-signature scheme.The security of this scheme is based on the hardness of the Small Integer Solution(SIS) problem.The results of the proof and efficiency analysis show that this scheme has the properties of bidirection,multi-use,optimal key and transparency.Compared with previous schemes relying on other hardness assumptions,it has the advantage of low asymptotic computational complexity.Finally,we extend the scheme to the identity-based proxy re-signature scheme.关键词
高斯抽样/格/后量子密码学/代理重签名/数字签名Key words
Gaussian sampling/lattice/post quantum cryptography/proxy re-signature/digital signature分类
信息技术与安全科学引用本文复制引用
江明明,胡予濮,王保仓,刘振华,来齐齐..格上的代理重签名方案[J].西安电子科技大学学报（自然科学版）,2014,(2):20-24,5.基金项目
国家自然科学基金资助项目(61173151,61173152) （61173151,61173152）
国家自然科学基金青年基金资助项目(61100229) （61100229）
