Reports

Cloudflare wants to sign the post-quantum web. Bitcoin can’t find a signer.

The post-quantum cryptographic answers are now largely agreed. Applying them — especially to authentication — is the hard part. Cloudflare’s move to become a certificate authority shows one way it gets done for the web. Bitcoin shows why the same answer doesn’t transfer everywhere. And Europe’s €47.5 million quantum-internet bet won’t help anyone migrating before […]

The paperwork layer

Standfirst: A validated hardware security module, a bill aimed at the electricity grid, and a Finnish research programme pointing at the certificate layer. Three developments in one week say the same thing: the hard part of the post-quantum transition is no longer cryptographic. A fourth — a vendor blog doing the rounds again — is […]

A candidate falls: what Claude found in HAWK

On 28 July, Anthropic published two cryptanalysis results produced with its Claude Mythos Preview model. One improved an attack on a reduced-round variant of AES — theoretically interesting, practically irrelevant, and not our subject here. The other is a genuine problem for HAWK, a post-quantum signature scheme that NIST advanced to a third round of […]

Everyone else just set a date

Three weeks in June and July produced hard US deadlines for post-quantum cryptography, a blunt statement from the US military about which quantum-safe technologies don’t count, and a machine-checked paper on what it actually costs to break RSA-2048 and P-256. New Zealand remains the only Five Eyes member with no migration deadline at all. For […]