Some thoughts about Anthropic's new cryptanalysis results

Anthropic has released research results from its unreleased 'Claude Mythos' model, demonstrating new cryptanalysis attacks against the HAWK signature scheme and reduced-round AES. The author analyzes the significance of these findings, noting that the HAWK attack is particularly notable for its use of standard tools.
Why it matters
The ability of AI models to perform advanced cryptanalysis suggests a potential shift in cybersecurity threats and the need for more robust cryptographic standards.
Yesterday Anthropic published two new cryptanalysis results , both outputs of Claude Mythos, their (still) unreleased advanced model. The first of these results attacks a signature scheme called HAWK, while the second is an improved attack against reduced-round AES. Anthropic also released a blog post describing the research process that produced these results. A few people online have asked me what this all means. While I’m not sure I have all the answers, I figured it wouldn’t hurt to write a bit about my current understanding. These are only my thoughts and other folks will probably differ (including domain experts in the two areas at issue) so take them for what they are.
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