AdHoc DM

AdHoc DM is a secure, privacy-first messaging application designed to give you total control over your digital conversations. By combining advanced End-to-End Encryption (E2EE) with an ephemeral relay system, AdHoc DM ensures that your messages — and now your voice & video calls (Beta) — stay private, decentralized, and leave no trace on any server.

- WHY CHOOSE ADHOC DM?
In an age of constant data harvesting, AdHoc DM is built on the principle that your private conversations should remain just that—private. We don’t just promise security; we enforce it through architecture.

1. True End-to-End Encryption (E2EE)
Every message, photo, and interaction is encrypted locally on your device before it ever hits the network. Using the X25519 Diffie-Hellman protocol for key exchange and 256-bit AES-GCM for content, only you and your recipient can read what is sent.

2. NEW — E2EE Voice & Video Calls (Beta)
Call any of your paired DMs with end-to-end encrypted voice and video. Call audio and video are encrypted on your device, frame by frame, and are never recorded or stored — the relay servers that carry them cannot listen to or watch your calls. As a beta feature, calling may occasionally be paused while we tune quality and capacity; messaging is never affected.

3. The Ephemeral Relay - Zero Server Footprint
Unlike traditional "secure" messengers that store your encrypted history on their servers indefinitely, AdHoc DM uses an ephemeral relay. Messages are held in a secure, temporary state only until the recipient downloads them. Once delivered, they are instantly and permanently deleted from the relay. No logs, no cloud backups, no digital breadcrumbs.

4. Total Anonymity
No phone numbers. No email addresses. No linking to your social media. AdHoc DM uses anonymous peer-to-peer identifiers, allowing you to communicate without revealing your personal identity to the platform or third parties.

5. Secure Media Sharing
Send high-fidelity images with confidence. Every photo is encrypted with the same rigorous standards as your text messages and is subject to the same "pull-and-delete" cleanup system, ensuring your media doesn’t live on a server forever.

- KEY FEATURES
* Instant QR Pairing: Establish a secure, encrypted channel in seconds by simply scanning a friend’s QR code.
* Call Do Not Disturb: turn off incoming calls — callers are simply told you’re not taking calls.
* Local-Only Storage: Your chat history is stored securely on your device using sqflite. We never upload your history to the cloud.
* Background Sync: Receive notifications and fetch messages even when the app isn’t active, so you never miss a beat.
* High-Fidelity Media Viewer: Enjoy a premium viewing experience with full-screen support, pinch-to-zoom, and panning for received images.
* Modern, Clean Interface: A fast, responsive UI built with Flutter, designed for ease of use without compromising security.
* Delete messages or entire DMs on both ends.

- UNDER THE HOOD (FOR THE SECURITY CONSCIOUS)
AdHoc DM uses industry-standard cryptographic primitives to ensure your data is safe:
* Key Exchange: X25519 (Elliptic Curve Diffie-Hellman).
* Encryption: 256-bit AES-GCM.
* Key Derivation: HKDF (Hash-based Key Derivation Function) to ensure every single message has a unique, non-reusable key.
* Calls: WebRTC with frame-level E2EE — each call uses a unique HKDF-derived key from your channel’s X25519 keys; relays carry ciphertext only.
* Architecture: Feature-First Layered Architecture for maximum reliability and code integrity.

- YOUR PRIVACY, OUR MISSION
AdHoc DM is perfect for:
* Confidential Business: Discussing sensitive projects or internal strategies.
* Journalists & Activists: Communicating with sources securely.
* Personal Privacy: Keeping your private life away from big tech data mines.
* Minimalists: Those who want a messaging tool that does its job and leaves no mess behind.

Reclaim your right to a private conversation. Download AdHoc DM today.