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technologyDec 1, 202524:29pending

【第428期】(Ledger)Alice的秘密:Mimblewimble与Zerocash在“对手方勾结”下的身份风险

Seventy3

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Seventy3:借助NotebookLM的能力进行论文解读,专注人工智能、大模型、机器人算法、crypto方向,让大家跟着AI一起进步。

今天的主题是:

A Decentralized Identity-Based Blockchain Solution for Privacy-Preserving Licensing of Individual-Controlled Data to Prevent Unauthorized Secondary Data Usage

Summary

这篇研究论文解决了加密货币中至关重要的不可链接性问题,该属性旨在保护用户免受去匿名化攻击。作者首先强调了 Mimblewimble 等协议在交易对手可能串通的假设下存在的隐私漏洞,这可能将个人的多块独立 个人身份信息 (PII) 链接起来。为分析此威胁,他们提出了新的理论框架,包括 对手方攻击模型代币转移不可链接性 (CT-unlinkability) 这一关键指标。通过引入 通用零知识代币转移系统 的概念,他们提出了一种更简便的方法来证明这种安全属性。文章应用其框架证明了 Mimblewimble 是 CT-可链接的(即存在漏洞),而 Zerocash 协议则被证实能够实现 CT-不可链接性

原文链接:https://ledgerjournal.org/ojs/ledger/article/view/239


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【第428期】(Ledger)Alice的秘密:Mimblewimble与Zerocash在“对手方勾结”下的身份风险

Seventy3

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