Separable Linkable Threshold Ring Signatures
Separable Linkable Threshold Ring Signatures
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DOI：
10.1007/978-3-540-30556-9_30
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发表时间：
2004-12
期刊：
影响因子：
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通讯作者：
Patrick P. Tsang;V. Wei;Tony K. Chan;M. Au;Joseph K. Liu;D. Wong
中科院分区：
文献类型：
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作者：
Patrick P. Tsang;V. Wei;Tony K. Chan;M. Au;Joseph K. Liu;D. Wong
环签名方案是一种组签名方案，没有组管理器来建立组或撤销签名者。Liu等人引入的可链接环签名还允许任何人确定两个环签名是否由同一组成员签名（也就是说，它们是链接的）。在本文中，我们提出了第一个可分离链接环签名方案，该方案还支持一个有效的阈值选项。我们还提出了安全模型，并将我们方案的安全性降低到已知的硬度假设。特别地，我们引入了可链接环签名的强制可链接性和不可诽谤性的安全概念。我们的方案支持“面向事件”的链接。讨论了这种连接准则的应用。
A ring signature scheme is a group signature scheme with no group manager to setup a group or revoke a signer. A linkable ring signature, introduced by Liu, et al. [20], additionally allows anyone to determine if two ring signatures are signed by the same group member (a.k.a. they arelinked). In this paper, we present the first separable linkable ring signature scheme, which also supports an efficient thresholding option. We also present the security model and reduce the security of our scheme to well-known hardness assumptions. In particular, we introduce the security notions ofaccusatory linkabilityandnon-slanderabilityto linkable ring signatures. Our scheme supports “event-oriented” linking. Applications to such linking criterion is discussed.