%0 Journal Article
%T 在标准模型下格上基于身份的代理环签名<br>Scheme of identity-based proxy ring signature on lattice in the standard model
%A 许章
%A 杨晓元
%A 魏康&lt
%A br&gt
%A XU Zhang
%A YANG Xiao-yuan
%A WEI Kang
%J 山东大学学报（理学版）
%D 2015
%R 10.6040/j.issn.1671-9352.2.2015.359
%X 摘要： 基于固定维数的格基委派算法和盆景树模型,在标准模型下构造了一个无可信中心的格上基于身份的代理环签名。其安全性是基于小整数解问题(small integer slution, SIS)的困难性。在标准模型下实现了代理签名者的完全匿名性和选择消息攻击下的强存在不可伪造性。与现有的基于格的代理环签名方案相比,新方案具有更高的安全性和计算效率。<br>Abstract: Based on the lattice basis delegation in fixed dimension and bonsai trees, a scheme of identity-based proxy ring signature on the lattice in the standar dmodel without a trusted center was proposed.The security of the scheme was based on the difficulty of small integer solution(SIS) problems on lattice, which realized full anonymity for the proxy signers and the strong existential unforgeability under chosen message attacks in the standard model. Compared with the existing scheme of identity-based proxy ring signature on lattice, our new scheme enjoys stronger security and higher efficiency
%K 格
%K 代理环签名
%K 强存在不可伪造性
%K 标准模型
%K &lt
%K br&gt
%K lattices
%K standard model
%K strong existential unforgeabilit
%K proxy ring signature
%U http://lxbwk.njournal.sdu.edu.cn/CN/10.6040/j.issn.1671-9352.2.2015.359