Quantum-Safe Key Encapsulation Mechanisms for Sensitive Context Transport

This blog describes the quantum-era risk to long-lived AI context transport (MCP), warning that adversaries could harvest encrypted MCP traffic now to decrypt later with future quantum computers; it recommends adopting post-quantum KEMs (e.g., Kyber/ML-KEM), hybrid transition strategies (X25519+Kyber), key rotation and cryptographic agility, and complementary controls like zero-trust and behavioral monitoring to mitigate 'harvest now, decrypt later' threats.