Building Post-Quantum Secure E2EE Messaging Prototype

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This presentation introduces post-quantum cryptography (PQC) and its necessity in combating quantum computing risks to secure communications. It delves into the technical foundation of a prototype leveraging Kyber512, Dilithium2, AES-256-GCM, and a FastAPI + React stack. Key features, such as encrypted private key storage, forward secrecy, and message signature verification, are highlighted alongside security concerns like server-side reliance and master key risks. Future enhancements include...