Two new identity-based threshold ring signature schemes

被引:18
作者
Deng, Lunzhi [1 ]
Zeng, Jiwen [2 ]
机构
[1] Guizhou Normal Univ, Sch Math & Comp Sci, Guiyang 550001, Peoples R China
[2] Xiamen Univ, Sch Math Sci, Xiamen 361005, Fujian, Peoples R China
关键词
Identity-based cryptography; Threshold ring signature; Pairings; Random oracle model; PAIRINGS;
D O I
10.1016/j.tcs.2014.04.002
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
This paper presents two new identity-based threshold ring signature schemes. With these schemes, any group of t entities spontaneously conscript arbitrarily n-t entities to generate a publicly verifiable t-out-of-n signature on behalf of the group of n members, yet the actual signers remain anonymous. The schemes are proven to be existentially unforgeable against adaptive chosen message and identity attacks (EUF-IBTRS-CMIA) and unconditional signer ambiguity under the random oracle model. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:38 / 45
页数:8
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