HAWK Post-Quantum Signature Scheme Security Halved by AI Attack

Anthropic's Claude model reduced HAWK's minimum key strength from 2^64 to 2^38 operations in 60 hours, highlighting vulnerabilities in post-quantum cryptography candidates.

Woofun AI reports that Anthropic's Claude Mythos Preview model identified a critical flaw in the HAWK digital signature scheme, effectively halving its minimum key strength. The AI-driven attack required approximately 60 hours and $100,000 in computational costs, reducing the effort to break HAWK's minimum parameter set from 2^64 to 2^38 operations. This development diminishes the appeal of larger compensating key sizes for the post-quantum candidate. Current Bitcoin and Ethereum signatures remain unaffected, while discussions on migrating to quantum-resistant cryptography continue.