Anthropic's LLM Claude Mythos has discovered key-recovery attacks on HAWK, a post-quantum signature scheme candidate. While the attack is impractical for most versions of HAWK, it significantly reduces the security of the toy version HAWK-256, which has 64-bit security that is nearly breakable.

The GitHub repository for anthropics/cryptography-research-demo contains cryptanalysis code related to published research papers. It features three independent components: AES, HAWK, and LEA, and is licensed under Apache 2.0.

Researchers at Anthropic have utilized Claude Mythos Preview to uncover vulnerabilities in cryptographic algorithms. One attack significantly compromises the HAWK digital signature scheme, while another reveals a new method to exploit round-reduced AES, a widely used symmetric cipher.

AI auditor zkao identified a critical soundness bug in OpenVM's zkVM guest library openvm-pairing, allowing a malicious prover to forge any pairing equality. This vulnerability does not affect the zkVM's proving system itself but impacts code relying on the flawed library.

An AI audit pipeline identified seven bugs in Cloudflare's CIRCL cryptography library, including a critical float64 precision loss in threshold RSA and a complete access-control breach in attribute-based encryption. All identified vulnerabilities have been fixed upstream.

Secret NSA documents reveal that the agency promoted the Data Encryption Standard (DES) in the 1970s despite knowing its vulnerabilities to eliminate competition. The NSA also exploited export-law exceptions in the 1990s to favor RC4 and RSA-512, compromised random number generator standards, and maintained a substantial budget to influence security standards through the 2010s.

Recent developments indicate significant progress in the field of cryptographically-relevant quantum computers. This has prompted a shift in urgency regarding the implementation of quantum-resistant cryptography.