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首页> 外文会议>2018 17th IEEE International Conference on Trust, Security and Privacy In Computing and Communications, 12th IEEE International Conference on Big Data Science and Engineering >Blockchain as a Notarization Service for Data Sharing with Personal Data Store
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Blockchain as a Notarization Service for Data Sharing with Personal Data Store

机译：区块链作为与个人数据存储共享数据的公证服务

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Personal data such as electronic medical records and academic records are critical and sensitive private information. These personal information is usually hosted across many data-custodian systems. Personal Data Store (PDS) is a service that lets an individual store, manage and deploy their key personal data in a highly secure and structured way. It also gives the user a central point of control for their personal information. One of the inherent problems of digital records is that it can be easily forged. Therefore, the data-consumer(with whom the data is shared) often needs to verify the authenticity of the shared document/record by communicating with the document/certificate issuing authority (e.g., data custodian). However, this process is time consuming and inefficient. In recent time, blockchain has gained tremendous attention from both industry and academia for distributed recording and immutable transactions. Blockchain provides a shared, immutable and transparent history of transactions enabling the building of applications that incorporate trust, accountability and transparency. This provides a unique opportunity to develop a secure and trustable data sharing system using blockchain. However, blockchain is primarily proposed for publicly verifiable transactions and does not provide privacy to the individuals. In this paper, we propose a data sharing framework that will guarantee the authenticity of the shared data in real-time and provide transactional privacy in a blockchain network. We have implemented our framework in a prototype that ensures privacy, integrity, and fine-grained access control over the shared data. The proposed work can significantly reduce the turnaround time for data sharing, improve the decision making process and reduce the overall cost.
机译：电子病历和学术记录等个人数据是关键且敏感的私人信息。这些个人信息通常托管在许多数据托管系统中。个人数据存储（PDS）是一项服务，允许个人以高度安全和结构化的方式存储，管理和部署其关键个人数据。它还为用户提供了对其个人信息的集中控制点。数字记录的固有问题之一是它很容易伪造。因此，数据消费者（与之共享数据）经常需要通过与文档/证书发行机构（例如，数据保管人）进行通信来验证共享文档/记录的真实性。但是，该过程耗时且效率低下。近年来，区块链在分布式记录和不可变交易方面引起了业界和学术界的极大关注。区块链提供了共享的，不可变的和透明的交易历史，支持构建包含信任，责任和透明度的应用程序。这为使用区块链开发安全可靠的数据共享系统提供了独特的机会。但是，区块链主要是为公开可验证的交易而提出的，并不为个人提供隐私。在本文中，我们提出了一个数据共享框架，该框架将保证共​​享数据的实时性并在区块链网络中提供交易隐私。我们已经在原型中实现了我们的框架，以确保对共享数据的隐私性，完整性和细粒度的访问控制。拟议的工作可以大大减少数据共享的周转时间，改善决策流程并降低总体成本。

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