Identity Based Threshold Ring Signature from Lattices

被引：0

作者：

Wei, Baodian ^{[1
]}

Du, Yusong ^{[2
]}

Zhang, Huang ^{[1
]}

Zhang, Fangguo ^{[1
]}

Tian, Haibo ^{[1
]}

Gao, Chongzhi ^{[3
]}

机构：

[1] Sun Yat Sen Univ, Guangdong Key Lab Informat Secur Technol, Sch Informat Sci & Technol, Guangzhou 510006, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Sch Informat Management, Guangzhou 510006, Peoples R China

[3] Guangzhou Univ, Sch Comp Sci & Educ Software, Guangzhou 510006, Peoples R China

来源：

NETWORK AND SYSTEM SECURITY | 2014年 / 8792卷

基金：

中国国家自然科学基金;

关键词：

ID-based; threshold ring signature; multilinear map; ideal lattice; SCHEME;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In the graded encoding systems that can be used to construct multilinear maps, the graded Computational Deffie-Hellman problem gGCDHP problem is assumed to be hard. We present an equivalent problem, called the variant graded Computational Deffie-Hellman problem vGCDHP, and make generalization to get the general graded Computational Deffie-Hellman problem gGCDHP. Based on the hardness assumption of gGCDHP, we construct the first ID-based threshold ring signature scheme from lattices. The scheme is proved in the random oracle model to be existentially unforgeable and signer anonymous.

引用

页码：233 / 245

页数：13

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