Majax Messenger, Beyond End-to-End Encryption. Five ML-KEM-1024 Engines Supporting a Renewable Cryptographic Architecture

Majax Messenger presents a secure messaging architecture built around defense in depth, non-residency of messages, cryptographic domain separation, daily key rotation, and five independent ML-KEM-1024 engines dedicated to messages, voice, media, real-time calls, and device identity. The system combines authenticated transport, the Maurice HMAC-based request protocol, Signal session dynamics, authenticated symmetric encryption, and post-quantum key encapsulation. This white paper describes the public architecture, measurable security properties, controlled transition between cryptographic epochs, and benchmark results while deliberately withholding operational secrets and attack-enabling implementation details. The deposit contains the English reference edition and a complete French translation.