Private Data System Enabling Self-Sovereign Storage Managed by Executable Choreographies
Sinica Alboaie, Doina Cosovan

TL;DR
The paper presents the Private Data System (PDS), a decentralized, self-sovereign data storage solution using executable choreographies to enable user-controlled privacy management across organizations.
Contribution
It introduces a novel distributed private data system that ensures user control and instant data sharing updates, addressing privacy and regulatory challenges without blockchain limitations.
Findings
Enables user-controlled data sharing and revocation.
Ensures instant propagation of data updates.
Prevents long-term storage of shared data by processing organizations.
Abstract
With the increased use of Internet, governments and large companies store and share massive amounts of personal data in such a way that leaves no space for transparency. When a user needs to achieve a simple task like applying for college or a driving license, he needs to visit a lot of institutions and organizations, thus leaving a lot of private data in many places. The same happens when using the Internet. These privacy issues raised by the centralized architectures along with the recent developments in the area of serverless applications demand a decentralized private data layer under user control. We introduce the Private Data System (PDS), a distributed approach which enables self-sovereign storage and sharing of private data. The system is composed of nodes spread across the entire Internet managing local key-value databases. The communication between nodes is achieved through…
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