Anthropic’s Claude Mythos Preview model has helped researchers discover ways to speed up attacks against two widely studied cryptographic algorithms.
One of the targets is Hawk, a candidate for post-quantum digital signature algorithms currently being evaluated by NIST, while the other improves the best previously known attack against a weakened version of the widely used Advanced Encryption Standard (AES).
Neither finding compromises production deployments nor weakens the security of real-world systems. Instead, Anthropic said, the findings improve the understanding of the security margins of modern cryptographic designs.
Security margin reduced
Hawk is among the post-quantum cryptographic ...