Secure Private Blockchain-Based Instant Messaging Platform for Social Media Services

Social media services enable global communication via instant messaging (IM) platforms. However, their widespread usage has resulted in server regulation issues because most are centralized, while they also pose privacy concerns due to endpoint-based security vulnerabilities. In response, we present a private blockchain-based IM platform that utilizes blockchains to secure data through immutability. We implement it in a RESTful Application Programming Interface (REST API) web server for better load balancing compared to the centralized IM architectures via decentralization. We further implement end-to-end encryption (E2EE) using public-private key pairs to improve data privacy. We evaluated the proposed design by highlighting its advantages over centralized IM platforms.