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arXiv 1808.02708cs.CR
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# MeToo -使用飞地构建自主可信系统

It Takes Two to #MeToo - Using Enclaves to Build Autonomous Trusted Systems

Danny Harnik, Paula Ta-Shma, Eliad Tsfadia

摘要:

我们在管理极其敏感数据的服务中提供增强的安全性,以防止内部攻击。一个例子是#MeToo用例,其中报告了性骚扰投诉,但只有在针对同一肇事者提出另一项投诉时才被披露。这样的服务对服务运营商产生了巨大的信任,我们的工作旨在减轻这种信任。为此,我们引入了一个新的自主数据管理的概念,从管理员转移到安全和可验证的硬件的敏感数据的责任。其主要思想是通过在英特尔SGX安全区内运行的自主计算代理群集来管理所有数据访问。这些EConfidante代理共享任何外部实体(包括数据服务管理员)都不知道的秘密数据密钥,从而消除了许多数据暴露的机会。在本文中,我们描述了EConfidante系统的详细设计,它的流程以及如何管理和实施。我们的#MeToo设计还使用了一个不可变的分布式账本,该账本是使用区块链框架中的组件构建的。我们为#MeToo用例实现了我们系统的概念验证,并分析了其安全属性和实现细节。

英文摘要:

We provide enhanced security against insider attacks in services that manage extremely sensitive data. One example is a #MeToo use case where sexual harassment complaints are reported but only revealed when another complaint is filed against the same perpetrator. Such a service places tremendous trust on service operators which our work aims to relieve. To this end we introduce a new autonomous data management concept which transfers responsibility for the sensitive data from administrators to secure and verifiable hardware. The main idea is to manage all data access via a cluster of autonomous computation agents running inside Intel SGX enclaves. These EConfidante agents share a secret data key which is unknown to any external entity, including the data service administrators, thus eliminating many opportunities for data exposure. In this paper we describe a detailed design of the EConfidante system, its flow and how it is managed and implemented. Our #MeToo design also uses an immutable distributed ledger which is built using components from a Blockchain framework. We implemented a proof of concept of our system for the #MeToo use case and analyze its security properties and implementation details.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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