DATASHARENETWORK A Decentralized Privacy-Preserving Search Engine for Investigative Journalists
Investigative journalists collect large numbers of digital documents during their investigations. These documents can greatly benefit other journalists' work. However, many of these documents contain sensitive information. Hence, possessing such documents can endanger reporters, their stories, and their sources. Consequently, many documents are used only for single, local, investigations. We present DATASHARENETWORK, a decentralized and privacypreserving search system that enables journalists worldwide to find documents via a dedicated network of peers. DATASHARENETWORK combines well-known anonymous authentication mechanisms and anonymous communication primitives, a novel asynchronous messaging system, and a novel multi-set private set intersection protocol (MS-PSI) into a decentralized peer-to-peer private document search engine. We prove that DATASHARENETWORK is secure; and show using a prototype implementation that it scales to thousands of users and millions of documents.
WOS:000668146200108
2020-01-01
978-1-939133-17-5
Berkeley
1911
1927
REVIEWED
Event name | Event place | Event date |
ELECTR NETWORK | Aug 12-14, 2020 | |