<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Stelau Journal</title><description>Code, analysis and digital trust.</description><link>https://www.stelau.com/</link><language>en</language><item><title>Geneva 2026: putting wallets to the test</title><link>https://www.stelau.com/en/blog/geneve-2026-wallets-interoperabilite/</link><guid isPermaLink="true">https://www.stelau.com/en/blog/geneve-2026-wallets-interoperabilite/</guid><description>France Identité, Google Wallet, ISO mdoc and OpenID: a week of interoperability testing and discussions in Geneva with Nicolas Chalanset and Loïc Perry.</description><pubDate>Thu, 08 Oct 2026 00:00:00 GMT</pubDate><author>Nicolas Chalanset</author></item><item><title>Verifying mDocs in the Browser: A Deep Dive into ISO 18013-5</title><link>https://www.stelau.com/en/blog/mdoc-web-verifier-deep-dive/</link><guid isPermaLink="true">https://www.stelau.com/en/blog/mdoc-web-verifier-deep-dive/</guid><description>How we built a fully client-side mDoc verifier using WebCrypto, Web Bluetooth, and CBOR — no backend required.</description><pubDate>Mon, 30 Mar 2026 00:00:00 GMT</pubDate><author>Nicolas Chalanset</author></item><item><title>Building an OID4VP Verifier: Cross-Device Flow from QR to VP Token</title><link>https://www.stelau.com/en/blog/oid4vp-backend-implementation/</link><guid isPermaLink="true">https://www.stelau.com/en/blog/oid4vp-backend-implementation/</guid><description>A technical walkthrough of implementing an OID4VP-compliant verifier in Node.js — from Authorization Request JWT construction to JWE-encrypted VP token decryption and mdoc parsing.</description><pubDate>Mon, 30 Mar 2026 00:00:00 GMT</pubDate><author>Hector Colin</author></item></channel></rss>