Decentralizing Privacy: Protecting Personal Data by Blockchain

Abstract

the security of users are questioned when security breaches occur in data when third parties are incorporated for collecting and controlling huge amount of personal data. A decentralized network of peers are accompanied by a public ledger and it has demonstrated bitcoin in the financial space that trusted and auditable computing. This paper describes a decentralized personal data management system for ensuring users control over their data. A protocol is implemented that is capable of turning a blockchain into an automated access-control manager that is not requiring trust in a third party. There are no strict financial transactions in our system. They are used for carrying instructions like querying, storing and sharing data. Finally, some possible blockchain extensions are discussed that are able to harness them into a well-rounded solution for faithful computing problems in society.