Cryptography is a topic tracked in our intelligence system with 5 linked articles.
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.
Educational explainer of Shamir's Secret Sharing with a 2-of-n example and a tie-in to Ente's Legacy Kit.
An opinion piece arguing against custom web UI features by drawing a crypto analogy, listing several UX pitfalls (scrolling, navigation, password fields, date pickers) and warning of potential regulatory/compliance risks in sensitive domains.
A data-rich, strongly critical dossier arguing FreeBSD's default security posture is poorly designed and slow to improve, citing long backports, root-running update/build workflows, insecure defaults across OpenSSH, packaging, and SSL, with concrete mitigation recommendations (LibreSSL, non-root builds, swap encryption, tightened sysctl/loader.conf) and governance/transparency concerns.
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