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Contrary to popular superstition, AES 128 is just fine in a post-quantum world
AES-128 remains secure against quantum computers and does not require key size changes as part of the post-quantum transition. NIST considers AES-128 safe and has made it the security benchmark for po
AES-128 remains secure against quantum computers and does not require key size changes as part of the post-quantum transition. NIST considers AES-128 safe and has made it the security benchmark for post-quantum cryptographic primitives. A common misconception that quantum computers will halve symmetric key security—requiring 256-bit keys for 128-bit security—is not an accurate interpretation of quantum algorithm speedup and is not reflected in compliance mandates.
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Source: Ars Technica | 2026-04-21