ShadowVault Encrypted Messenger: Military-Grade E2E Encryption for Every Message
ShadowVault is a next-generation encrypted messaging app that protects every conversation with Signal Protocol end-to-end encryption. Unlike other messengers, we require no phone number, collect zero metadata, and include built-in privacy tools like a password manager and encrypted cloud storage.
How Our Encryption Works
Every message in ShadowVault is protected by multiple layers of cryptography:
Signal Protocol (X3DH + Double Ratchet)
The same encryption protocol used by Signal and WhatsApp, but implemented with zero-knowledge architecture. Extended Triple Diffie-Hellman (X3DH) for initial key exchange, Double Ratchet for perfect forward secrecy — each message uses a unique key.
AES-256-GCM At-Rest Encryption
All messages stored locally are encrypted with AES-256-GCM authenticated encryption. Even if someone gains physical access to your device, your messages remain unreadable without your master password.
Argon2id Key Derivation
Your master password is processed through Argon2id — the winning algorithm of the Password Hashing Competition. Memory-hard and resistant to GPU, ASIC, and side-channel attacks.
Messaging Features
- 1-to-1 encrypted chats — Signal Protocol E2E on every message
- Group chats — up to 6 members, all E2E encrypted
- Channels — broadcast to subscribers with admin controls
- Self-destructing messages — set timers for auto-deletion
- View-once messages — photos/videos that disappear after viewing
- Burn after read — messages destroyed once opened
- Reactions & replies — rich interaction without privacy compromise
- Stories — ephemeral content sharing with key distribution
- Polls — create and vote within encrypted conversations
- Real-time translation — 30+ languages, in-chat translation
- Saved messages — bookmark important messages securely
- Conversation locking — additional PIN protection for sensitive chats
Encrypted Voice & Video Calls
ShadowVault supports encrypted voice and video calls using WebRTC with DTLS-SRTP encryption. Calls are peer-to-peer when possible, with a dedicated TURN relay server when NAT traversal requires it. No call recordings, no metadata, no logs.
Anonymous by Design
Unlike Signal, WhatsApp, and Telegram — all of which require a phone number — ShadowVault requires only a username and password. No email, no phone, no identifying information. For maximum anonymity, access via our Tor hidden service (.onion address).
Works on Every Device
ShadowVault is a Progressive Web App (PWA) that works on any device with a modern browser. iPhone, Android, Mac, Windows, Linux, ChromeOS — no app store required. Install it from your browser in one tap.
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