How Qu-Chat Works

No servers storing your data. No backdoors. No compromise. Just pure peer-to-peer communication secured with quantum-resistant cryptography.

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Quantum-Resistant Encryption

Your messages are protected with NIST-approved ML-KEM-768 (Kyber), making them safe against both classical and quantum computers.

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Decentralized Storage

Messages are stored across a peer-to-peer network —no central servers, no single point of failure.

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Wallet-Based Identity

Your Web3 wallet is your identity—no phone numbers, no email addresses, no personal data collected.

Message Encryption Flow

1

Generate Quantum-Safe Keys

When you connect your wallet, Qu-Chat generates a Kyber768 key pair (1,184 byte public key, 2,400 byte private key). Your public key is shared on the network, your private key never leaves your device.

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2

Encrypt Your Message

When you send a message, Qu-Chat retrieves the recipient's public key from the network, performs Kyber key encapsulation to create a shared secret, then encrypts your message with AES-256-GCM.

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3

Store on Decentralized Network

The encrypted message (including the Kyber ciphertext) is stored on the database owned by the peer-to-peer network. No central server can access your plaintext.

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4

Recipient Decrypts

The recipient uses their private key to perform Kyber decapsulation, derives the same shared secret, and decrypts the message with AES-256-GCM. Only the intended recipient can read the message.

Your Data Never Touches Our Servers

Traditional Apps

  • ✕Messages stored on company servers
  • ✕Metadata logged and analyzed
  • ✕Vulnerable to data breaches
  • ✕Can be shut down or censored
  • ✕Your data sold to advertisers

Qu-Chat

  • ✓Encrypted messages on peer-to-peer network
  • ✓No metadata collection
  • ✓Decentralized—no single point of failure
  • ✓Censorship-resistant network
  • ✓Your data belongs to you alone

Ready for True Privacy?

Start messaging with quantum-resistant encryption today.