Show HN: Ekko – post-quantum E2EE layer for Instagram, WhatsApp, Telegram Web

Category: security

Tags: encryption, post-quantum, privacy, browser-extension, e2ee

Score: 6.3/10 (Innovation: 7, Technical: 6, Documentation: 5, Utility: 6)

Ekko is a post-quantum end-to-end encryption layer that works on top of existing messengers like Instagram, WhatsApp, and Telegram, allowing users to encrypt messages within those platforms without switching apps. It uses hybrid X25519 and ML-KEM-768 with XChaCha20-Poly1305, and offers both handle-based and off-grid modes. The project is interesting for bringing quantum-resistant encryption to mainstream chat apps via a browser extension and upcoming keyboard integration.

Target audience: privacy-conscious users, security engineers, backend developers

Repository: https://useekko.app/

View on Hacker News