Quantum computers will break widely used encryption like RSA and Diffie-Hellman, creating “store now, decrypt later” risks. Post-quantum cryptography (PQC) offers resistant methods, with NIST naming CRYSTALS-Kyber, CRYSTALS-Dilithium, FALCON, and SPHINCS+ as leading algorithms. PQC methods include lattice-, code-, and hash-based systems, each with trade-offs in key size, speed, and security. Transitioning requires crypto-agility, parallel deployment with existing methods, and hardware updates. Eviden supports multi-algorithm flexibility and promotes PQC adoption through accessible education and integration into secure products.

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