Portfolio showcasing projects and research. Zola 2026-07-17T00:00:00+00:00 https://blog.sooraj.fun/tags/sqlite/atom.xml 2026-07-17T00:00:00+00:00 2026-07-17T00:00:00+00:00 Unknown https://blog.sooraj.fun/projects/besynx/ <p>Secure, local-first, peer-to-peer browser history and cookie synchronization service powered by Rust, SQLite, and WebExtensions.</p> <h3 id="why-it-exists">Why it exists</h3> <p>Modern browsers isolate history and session credentials into separate silos, while cloud sync tools transmit unencrypted or centralized browsing data to third-party servers. besynx provides private, zero-cloud synchronization directly between local browsers and trusted devices.</p> <h3 id="how-it-works">How it works</h3> <ul> <li>Runs a lightweight background daemon written in <strong>Rust</strong> backed by a local <strong>SQLite</strong> database with locked filesystem permissions (`0600`).</li> <li>Couples with Manifest-V3 browser extensions for Chromium and Firefox featuring offline visit event queues.</li> <li>Synchronizes cookies bidirectionally with anti-loop protection and strict Origin header validation to prevent Cross-Site WebSocket Hijacking (CSWSH).</li> <li>Authenticates remote peer daemons using mutual <strong>Ed25519</strong> cryptographic identity keypairs.</li> </ul> <h3 id="what-happened">What happened</h3> <p>Preventing infinite cookie feedback loops between Firefox and Chromium required careful timestamp and domain debouncing. Once stabilized, switching between browsers kept session logins active without touching the cloud.</p> <h3 id="what-i-d-change">What I'd change</h3> <p>I'd add local mDNS peer discovery and WireGuard tunnel integration so mobile Firefox instances on Android sync seamlessly over local Wi-Fi.</p> <h3 id="links">Links</h3> <p><a href="https://github.com/whysooraj/besynx">GitHub</a></p>