A Code-Based Linkable Ring Signature Scheme
A Code-Based Linkable Ring Signature Scheme
复制标题
DOI：
10.1007/978-3-030-01446-9_12
复制
发表时间：
2018-10
期刊：
影响因子：
--
通讯作者：
P. Branco;P. Mateus
中科院分区：
文献类型：
--
作者：
P. Branco;P. Mateus
可链接环签名方案是一种在选举和现金中有重要应用的密码学原语。它们是具有额外性质的环签名方案，即如果同一用户签署两个消息，验证者知道它们是由同一用户签署的。在这项工作中，我们提出了一个新的认证环签名方案。我们的建议的安全性是基于诊断子解码问题的难度。我们利用Stern协议的一个变形，并对其进行Fiat-Shamir变换，证明了该方案具有一般的环签名方案的性质：不可伪造性、签名者匿名性、不可诽谤性和可链接性。
Linkable ring signature schemes are cryptographic primitives which have important applications ine-votingande-cash. They are ring signature schemes with the extra property that, if the same user signs two messages, a verifier knows they were signed by the same user. In this work, we present a new linkable ring signature scheme. The security of our proposal is based on the hardness of the syndrome decoding problem. To construct it, we use a variant of Stern’s protocol and apply the Fiat-Shamir transform to it. We prove that the scheme has the usual properties for a linkable ring signature scheme: unforgeability, signer anonymity, non-slanderability and linkability.