Cryptography is a topic tracked in our intelligence system with 5 linked articles.
Anthropic's Mythos AI found weaknesses in HAWK and AES, prompting HAWK's withdrawal from NIST PQC standardization and underscoring regulatory and security-margin implications of AI-assisted cryptanalysis.
Anthropic’s Claude Mythos Preview autonomously found cryptographic weaknesses in HAWK and a reduced-round AES attack, with ~$100k API cost per result and ~60 hours to discover the HAWK attack; no current production impact, but significant implications for post-quantum standardization and AI-assisted cryptanalysis.
Go cryptography 2025 updates: post-quantum key exchange via ML-KEM in TLS/SSH, native FIPS 140-3 module, a clean security audit, and broader library improvements that affect compliance and future-proofing.
A cryptography researcher shows that LLM reasoning blocks are encrypted, replayable across sessions/accounts, and potentially leak via side channels, raising security and governance concerns for frontier AI APIs.
17% of all 64‑bit unsigned integers (3,215,709,724,700,470,902 values) can be written as the product of two 32‑bit integers, a precise count published by Daniel Lemire citing Webster et al.
Bijou64 is a canonical varint encoding using a two-trick design to ensure a single encoding per value, claiming 2–10x faster decoding than LEB128 with comparable wire size, and it’s released under MIT/Apache-2.0 with a CC BY-SA 4.0 spec, though it’s a nascent format not yet battle-tested.
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