Documentation & Technical Resources
Everything you need to understand how ShadowTalk delivers truly private, serverless messaging without metadata exposure
What is ShadowTalk?
ShadowTalk is a revolutionary messaging platform that combines blockchain-based identity, hardware-encrypted wallets, and a serverless wake-and-alarm communication system to deliver encrypted messages only when both devices are online. Unlike traditional messaging apps, ShadowTalk guarantees zero metadata exposure and no dependency on centralized servers.
Our innovative Ping-Pong Wake Handshake protocol ensures that messages never leave your device until the recipient confirms they're ready to receive them, eliminating the need for permanent relays or third-party storage.
Core Features
Zero Metadata
No sender, receiver, or timing information is exposed to any third party including servers or relays
Fully Serverless
Messages are exchanged directly between devices with no central servers or permanent relays
Hardware Encryption
Keys stored in StrongBox/Secure Enclave provide unforgeable identity with biometric protection
Blockchain Identity
Decentralized directory on Solana with IPFS storage ensures no single point of control
Forward Secrecy
Session keys rotate per message ensuring past communications remain secure even if device is compromised
Duress Protection
Duress PIN instantly wipes all keys and broadcasts signed revocation to protect under coercion
Technical Documentation
Complete Architecture v3
Deep dive into ShadowTalk's fully decentralized architecture, including the Ping-Pong Wake Handshake, blockchain directory, and cold storage wallet integration
High-Level Security Model
Comprehensive security framework covering threat assumptions, cryptographic primitives, data handling rules, and device protection layers
Ping-Pong Wake Protocol
Detailed specification of ShadowTalk's signature innovation for reliable, private, serverless message delivery
Technical Feasibility Audit
Independent assessment of ShadowTalk's technical feasibility, addressing real-world implementation challenges and validation
Getting Started
- 1
Download the App
Visit the download page to get ShadowTalk for Android or iOS
- 2
Create Your Identity
Generate a hardware-backed cryptographic identity secured by biometric authentication
- 3
Add Contacts
Search the decentralized directory or scan QR codes to add contacts securely
- 4
Start Messaging
Send encrypted messages that leave no metadata trail - completely serverless and private
Common Questions
How does ShadowTalk work without servers?
ShadowTalk uses a Ping-Pong Wake protocol where messages stay on the sender's device until the recipient confirms they're online and ready to receive. No servers or permanent relays are needed.
What makes it more private than other apps?
Unlike apps like Signal or WhatsApp, ShadowTalk exposes zero metadata. There are no phone numbers, server logs, IP addresses, or timing information that could be used to analyze your communications.
Is it open source?
Yes, ShadowTalk is fully open source with reproducible builds. You can verify the code and build it yourself to ensure no backdoors or vulnerabilities.