Decentralized Identifier and Access Control Based Architecture for Privacy-Sensitive Data Distribution Service

Reiya Oku, K. Shiomoto, Y. Ohba
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Abstract

In today's world, users' privacy-sensitive information is collected and managed by organizations and businesses. However, users do not have the option to choose the information that can be shared, nor can they track the sharing process. To address this limitation, we propose a privacy-sensitive information protection and management architecture that incorporates two emerging technologies: (1) Self-Sovereign Decentralized Identifier (DID), and (2) a policy description language to implement an automated access policy control. The proposed architecture defines a schema for privacy-sensitive information and leverages a policy description language to describe policies for handling the privacy-sensitive information to implement automated distribution of information. Users can prove the authenticity of their personal information without the need for centralized control, such as a public key infrastructure. The transaction records of accessing privacy-sensitive information can be tracked while keeping anonymization; no one can identify the real entity of the transacting party. We implemented a prototype system using Hyperledger Aries, Indy, and Sawtooth Projects for the DID management mechanisms, and Open Policy Agent for an automated access policy control.
基于分散标识符和访问控制的隐私敏感数据分发服务体系结构
在当今世界,用户的隐私敏感信息由组织和企业收集和管理。但是,用户无法选择可以共享的信息,也无法跟踪共享过程。为了解决这一限制,我们提出了一种隐私敏感的信息保护和管理架构,该架构结合了两种新兴技术:(1)自主分散标识符(DID),以及(2)策略描述语言,以实现自动访问策略控制。所建议的体系结构为隐私敏感信息定义了一个模式,并利用策略描述语言来描述用于处理隐私敏感信息的策略,以实现信息的自动分发。用户可以证明其个人信息的真实性,而不需要集中控制,例如公钥基础设施。在匿名化的同时,可以跟踪访问隐私敏感信息的交易记录;没有人可以识别交易方的真实实体。我们使用Hyperledger Aries、Indy和Sawtooth Projects实现了一个原型系统,用于DID管理机制,并使用Open Policy Agent实现了自动访问策略控制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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