Journal / Research, code and ideas
Behind the scenes
of digital trust.
Our implementations, our analysis and what we learn along the way. Written by the engineers doing the work.
Geneva 2026: putting wallets to the test
France Identité, Google Wallet, ISO mdoc and OpenID: a week of interoperability testing and discussions in Geneva with Nicolas Chalanset and Loïc Perry.
Verifying mDocs in the Browser: A Deep Dive into ISO 18013-5
How we built a fully client-side mDoc verifier using WebCrypto, Web Bluetooth, and CBOR — no backend required.