IMBIE: Identity Management with Blockchain Information Exchange

Citizen identification is essential to allow access to basic services such as healthcare and education. Nevertheless, traditional identity management systems embrace approaches that are poorly scalable or detrimental to user security and privacy. We present a proposal for an identity management system based on blockchain interoperability. In our system, each domain maintains a blockchain to manage the identity of its users. Furthermore, the paper analyzes the technique of exchanging information between blockchains to implement the concept of bring your own identity (BYOI). Thus, the system mitigates scalability problems and guarantees users control over their data. The work developed is part of the project promoted by the National Network for Education and Research, "Identity Management with Information Exchange between Blockchains".