AES-128 ENCRYPTION REMAINS SECURE POST-QUANTUM

The belief that AES-128 is obsolete in the post-quantum world is a persistent myth undermining quantum readiness efforts. Current quantum computing capabilities pose no threat to AES-128's security parameters. Grover's algorithm, the theoretical quantum attack against symmetric encryption, would require astronomical computational resources to break AES-128 in any practical timeframe. Organizations preparing for quantum threats should focus on transitioning public-key cryptography systems—RSA and elliptic curve cryptography—which quantum computers could theoretically compromise. These asymmetric encryption methods face genuine risk from quantum algorithms like Shor's algorithm. AES-128 requires the same level of protection as any current encryption standard. The misconception diverts resources from genuine quantum-readiness priorities, including post-quantum cryptography standardization and hybrid encryption approaches. Security teams should distinguish between real threats and unfounded speculation when planning their quantum transition strategies.