CryptanalysisBench: Frontier LLMs Are Now Finding Novel Cryptographic Attacks
A new academic-Anthropic benchmark shows frontier models breaking real cryptographic tasks — and one model surfaced a genuine design flaw and a proof error in NIST-track candidates, not just textbook exercises.
Claude Mythos Finds Real Math Flaws in HAWK and Weakened AES
Anthropic researchers used a specialised Claude model to discover a genuine cryptanalytic improvement against the post-quantum HAWK signature scheme and a reduced-round AES-128 variant — theoretical results, but a notable data point for AI-assisted cryptanalysis.
France's ANSSI to Stop Certifying Non-Quantum-Safe Encryption by 2027
France's cybersecurity agency has set a hard deadline to phase out certification for encryption products that can't resist quantum attacks — a policy with teeth because ANSSI approval is mandatory for government and critical-infrastructure use.
Short-Sleeve RSA: How Zero-Block Prime Structure Exposed 603 Private Keys in the Wild
Trail of Bits and the badkeys project have uncovered a new class of factorable RSA key — one defined by evenly spaced zero-bit blocks in its prime factors — and found hundreds already deployed in real TLS, SSH, and PGP infrastructure.