Table of Contents

• Icing – end-to-end-encrypted phone calls without data
• 📖 Detailed design
• 🔨 Quick start (developer preview, un-protocoled dialer)
• ✨ Features (α1 snapshot)
• 🗺️ Project status
• 🤝 How to help
• License

Icing – end-to-end-encrypted phone calls without data

Experimental α-stage • Apache-2.0 • Built at Epitech

Icing runs a Noise-XK handshake, Codec2 and 4-FSK modulation over the plain voice channel, so any GSM/VoLTE call can be upgraded to private, authenticated audio - no servers and no IP stack required.

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📖 Detailed design

See docs/Icing.md for protocol goals, threat model, and technical architecture.

🔨 Quick start (developer preview, un-protocoled dialer)

# on an Android phone (Android 12+)
git clone https://git.gmoker.com/icing/monorepo
cd dialer
# Requires Flutter and ADB or a virtual device
flutter run

⚠️ This is an alpha prototype: expect crashes, missing UX, and incomplete FEC.

You can join us in Telegram or Reddit ! https://t.me/icingdialer https://www.reddit.com/r/IcingDialer/

✨ Features (α1 snapshot)

• [DryBox Only] Noise XK handshake (X25519, AES-GCM, SHA-256)
• Static keys = Ed25519 (QR share)
• [DryBox Only] Voice path: Codec2 → encrypted bit-stream → 4-FSK → analog channel
• GSM simulation in DryBox for off-device testing

🗺️ Project status

Stage (roadmap)	Dialer app	Protocol	DryBox	Docs
Alpha 1 (Q3-2025)	🚧 UI stub, call hook	Key gestion	⚠️ Qt demo, Alpha 1 Working	📝 Draft complete
Alpha 2 (Q4-2025)	🛠️ Magisk flow	🔄 Adaptive FEC	🔄 Stress tests	🔄 Expanded
Beta 1 (Feb 2026)	🎉 Public release	🔐 Audit pass	✅ CI	✅

🤝 How to help

• Crypto researchers – Poke holes in the protocol draft.
• Android security hackers - Review our Kotlin integrations.
• ROM maintainers - Let's talk about an integration !

Open an issue or report here

License

Apache License 2.0 - see LICENSE.

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Made with ☕ by four Epitech students.