Building EVA Locker: A Client-Side Zero-Knowledge Cryptography SaaS

EVA Locker is a next-generation, client-side Zero-Knowledge cloud encryption platform designed to make uncompromising privacy effortless for everyone.

Built around a strict Zero-Knowledge and End-to-End Encryption (E2EE) model, all cryptographic operations occur directly in the user's browser via WebAssembly and Web Crypto API. Your master keys and files are encrypted client-side using AES-256-GCM and derived with Argon2id (Memory-Hard KDF) before ever leaving your device. It is mathematically impossible for our servers to read, decrypt, or inspect your data.

Under the hood, our high-performance backend infrastructure is built with Bun, ensuring ultra-low latency, blazing-fast streaming, and resilient data storage. While the internal engineering is advanced, the user interface remains intuitive, modern, and accessible to non-technical users alike.

The core architecture is already operational and entering its final polish. If you believe in accessible, independent, and verifiable privacy tools, join our Patreon to support development, infrastructure costs, and the upcoming public launch.
👉 Support EVA Locker on Patreon