在数字凭证中使用可塑签名允许多显示功能

Jinnan Fan, C. Adams
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引用次数: 1

摘要

在本文中,我们提出使用可塑签名技术将品牌的数字证书从单次显示能力转换为多次显示能力。我们具体建议的实例使用RSA数字签名,因此Alice可以有效地将原始凭据及其相应的CA签名转换为可以向验证者展示的随机/盲化版本的凭据和签名,而不会有可追溯性的风险(由CA或跨多个验证者)。我们描述了修改后的发布和显示协议,并讨论了我们提出的方案的安全特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Using Malleable Signatures to Allow Multi-Show Capability in Digital Credentials
In this paper we propose the use of a malleable signature technique to transform Brands’ digital credentials from single-show capability to multi-show capability. Our specific proposed instantiation uses RSA digital signatures so that Alice can efficiently transform an original credential and its corresponding CA signature to a randomized / blinded version of the credential and signature that can be shown to a verifier without risk of traceability (by the CA or across multiple verifiers). We describe our modified issuing and showing protocols and discuss the security properties of our proposed scheme.
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