For the community · Meetings

Meetings

Two or three times a year a Yivi meeting is organised where the latest developments are discussed on digital identity in general and on Yivi in particular. Usually between 25 and 50 people attend, from industry, government and academia. Participation is free. The atmosphere is open and focused on content. The location is (almost always) at SURF in Utrecht, next to the central station (see address and directions). The meetings are held in Dutch.

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Next meeting

  • Yivi meeting: Friday afternoon 25 September 2026, at SURF in Utrecht Next meeting

    The meeting starts at 13:30 and ends around 17:30. Participation is free.

    Location: SURF, Moreelsepark 48, 3511 EP Utrecht, within walking distance of Utrecht Central Station. Take the Centrum exit, walk through the Hoog Catharijne shopping centre (keep right, past JD Sports and Lush) until you reach the Albert Heijn supermarket. The entrance to Connect Offices is next to it. Ring the bell for SURF, second floor. See also SURF’s directions.

    1. 13:30 Opening, welcome.
    2. 13:30 - 14:00 Adam Veci (Max Planck Institute for Security and Privacy, Bochum), “Post-quantum crypto for Yivi”
    3. 14:00 - 14:30 Esther Makaay (Signicat), “EUDI Wallets: a European overview”
    4. 14:30 - 15:00 Baukje Faber and Ruud Kosman (Innovalor), “User experiences with ID-wallets regarding the life events ‘becoming a surviving relative’ and ’turning 18’”
    5. 15:00 - 15:30 Coffee/tea
    6. 15:30 - 16:00 Timo Glastra and Ana Goessens (Animo), “Better security, UX and the end of deeplinks and QR-codes using the W3C Digital Credentials API”
    7. 16:00 - 16:30 Rik Viergever (Murena), “Murena, /e/OS and Yivi, a natural combination for sovereignty, software freedom and privacy”
    8. 16:30 - 16:45 Dibran Mulder (Caesar Groep), “A look back at a summer of work across the Yivi App, Yivi Business Wallet & PostGuard”
    9. 16:45 - 17:30 Drinks, offered by SURF.

Previous meetings

    1. 13:30 Opening, welcome.
    2. 13:30 - 14:00 Hanna Schraffenberger, Laura Kolijn (Radboud University), “Voting with Wallets” [slides]
    3. 14:00 - 14:30 Nico de Smidt (Avensus), “HSMs for European Digital Identity Wallets” [slides]
    4. 14:30 - 15:00 Dibran Mulder (Caesar Groep), “Yivi developments” [slides]
    5. 15:00 - 15:30 Break
    6. 15:30 - 16:00 Yoeri Kayser (Radboud University), “Online password recovery via Yivi” [slides]
    7. 16:00 - 16:30 Eric Verheul (Wellet), “Security challenges of HSM-based wallets, and how Split-ECDSA solves them” [slides]
    8. 16:30 Drinks, offered by SURF
  • This meeting was originally scheduled for 9 January, but was postponed because of bad weather and poor accessibility.
    1. 13:30 Opening, welcome.
    2. 13:30 - 14:00 Jeroen de Beer (Anoigo), “A system of wallets”
    3. 14:00 - 14:30 Roger Olivieira (VerID), “Intermediaries as a bridge to wallet adoption”
    4. 14:30 - 15:00 Baukje Faber (Innovalor), Wendy van Eeckhout (municipality of Nijmegen), Roelie den Dulk (ICTU), “Using a wallet for life events” [slides]
    5. 15:00 - 15:30 Break
    6. 15:30 - 16:00 Victor van der Hulst (Fides Community), “Fides Community: open source tooling for trust” [slides]
    7. 16:00 - 16:30 Dibran Mulder (Caesar Groep), “Yivi developments” [slides]
    8. 16:30 Drinks, offered by SURF.
    1. 13:30 Opening, welcome.
    2. 13:30 - 14:00 Niek Jan van den Hout (The Hague University of Applied Sciences and Radboud University), “Accessibility challenges in the use of European eID means”
    3. 14:00 - 14:30 Jeroen de Beer (Anoigo), “Evolution vs revolution, a reality check for identity wallets”
    4. 14:30 - 15:00 Koen de Jonge (Procolix), “The Fediverse: opportunities and threats for Yivi”
    5. 15:00 - 15:30 Coffee/tea
    6. 15:30 - 16:00 Yong Yong Hu (Radboud University), “Identity wallets from a legal perspective”
    7. 16:00 - 16:30 Dibran Mulder (Caesar Groep), “Yivi developments”
    8. 16:30 - 17:30 Drinks, offered by SURF
    1. 13:30 Opening, welcome.
    2. 13:30 - 14:00 Wendy van den Eeckhout (municipality of Nijmegen), “Digital identity developments at the municipality of Nijmegen”. [ slides ]
    3. 14:00 - 14:30, Peter Eikelboom (SURF), “What can a wallet with a digital identity and verifiable credentials mean for education (and the labour market)?”. [ slides ]
    4. 14:30 - 15:00 Coffee/tea.
    5. 15:00 - 15:30, Jaap-Henk Hoepman (Radboud University), “A perspective on cryptography for wallets”. [ slides ]
    6. 15:30 - 16:00, Tim Vermeulen (Alliander), “Digital signatures in a professional environment”. [ slides ]
    7. 16:00 - 16:30, Dibran Mulder (Caesar Groep), “Yivi developments”. [ slides ]
    8. 16:30 - 17:30 Drinks, offered by SURF.
    1. 13:30 Opening, welcome
    2. 13:30 - 14:00, Sara Vahdati Pour (student, Nijmegen), Keyvi, single sign-on with Keycloak login authenticator using Yivi [ slides ]
    3. 14:00 - 14:30, Robert van Altena (VerID), Yivi in the insurance sector [ slides ]
    4. 14:30 - 15:00 Jan den Besten, Lian Vervoort, Dirk Doesburg (Nijmegen), Yivi for PubHubs and PubHubs for Yivi [ slides by Jan and Lian ] [ slides by Dirk ]
    5. 15:00 - 15:30 Break
    6. 15:30 - 16:00, Sietse Ringers, (Cryptographic) developments in EUDI wallets [ slides ]
    7. 16:00 - 16:45, Martijn Sanders, Ivar Derksen (SIDN), Dibran Mulder (Caesar Groep), Yivi transition from SIDN to Caesar [ slides by Martijn and Ivar ] [ slides by Dibran ]
  • The meeting starts at 13:30, at SIDN. Please note that this time the meeting is at SIDN in Arnhem, and not at SURF in Utrecht as usual. The exact location is: SIDN, Meander 501, 6825 MD Arnhem, company restaurant on the 3rd floor.
    1. 13:30 Opening, welcome
    2. 13:30 - 14:00, Joost van Dijk (Yubico), FIDO and web-based digital identity wallets [ video ]
    3. 14:00 - 14:30, Theo Hooghiemstra (Hooghiemstra en Partners), Authentication in healthcare [ video ]
    4. 14:30 - 15:00 Peter Eikelboom (SIDN), European and national identity developments [ video ]
    5. 15:00 - 15:30 Break
    6. 15:30 - 16:00, iHub team (Radboud), Yivi signatures for files, mails and posts [ video ]
    7. 16:00 - 16:30, Job Doesburg (Radboud), Measures against over-asking in SSI and Yivi [ video ]
    8. 16:30 - 17:00, Martijn Sanders (SIDN), Yivi developments [ video ]
    9. 17:00: drinks, offered by SIDN
    1. 13:30 Opening, welcome
    2. 13:30 - 14:00, Martijn van Dam (Datakluis foundation), The Dutch Datakluis
    3. 14:00 - 14:45, Wendy van den Eeckhout and Marnix Dessing (municipality of Nijmegen), Issuance and use of attributes
    4. 14:45 - 15:15 Sietse Ringers (ICTU), The public reference wallet: technology and context
    5. 15:15 - 15:45 Break
    6. 15:45 - 16:15 Job Doesburg (Radboud), Measures against over-asking
    7. 16:15 - 16:45 Niels van Dijk (SURF), SURF proof of concept with an education wallet
    8. 16:45 - 17:00 Martijn Sanders (SIDN), State of the IRMA
    9. 17:00: drinks, offered by SURF
    1. 13:30 Opening, welcome
    2. 13:30 - 14:00 Wilbert Junte (Stichting CIS) and Bas Maat (Achmea), IRMA & insurance
    3. 14:00 - 14:30 Tim Speelman (policy officer Digital Identity, Ministry of the Interior), European Digital Identity and the public reference wallet [ video ]
    4. 14:30 - 15:00 Michiel Mayer (Chamber of Commerce, KvK) and Robert van Altena (VerID), IRMA & KvK [ video ]
    5. 15:00 - 15:30 Break
    6. 15:30 - 15:45 Gijs Nijman (Joindata), Business identification in the agricultural sector
    7. 15:45 - 16:00 Jos Kuijpers (lead software developer, OnePlanet), IRMA & OnePlanet Data Platform
    8. 16:00 - 16:30 Martijn Sanders (SIDN), State of the IRMA [ video ]
    9. 16:30 Drinks, offered by SURF
    1. 13:30 Opening, welcome
    2. 13:30 - 14:00 Marlies Rikken, Niels van Dijk (SURF), eduID and SSI according to SURF [ video ]
    3. 14:00 - 14:45 Laurens Debackere (Digitaal Vlaanderen), An introduction to identity & authentication in the Flemish Solid ecosystem [ video ]
    4. 14:45 - 15:00 Daniel Ostkamp (Radboud University), Development of PostGuard email encryption [ video ]
    5. 15:00 - 15:30 Break
    6. 15:30 - 16:00 Bart Kerver (Ministry of Health), UZI card developments [ video ]
    7. 16:00 - 16:15 Jan den Besten (Radboud University), IRMA in the new community network PubHubs [ video ]
    8. 16:15 - 16:30 Koen de Jonge (Procolix), Into the cloud with IRMA [ video ]
    9. 16:30 - 17:00 Martijn Sanders and Ivar Derksen (SIDN), State of the IRMA [ video ]
    10. 17:00 - 18:00 Drinks, offered by SURF
    1. 13:30 Opening, welcome
    2. 13:30 - 14:00 Joost Fleuren (Chamber of Commerce, KvK), KvK authorisations and IRMA: why and how? [ video ]
    3. 14:00 - 14:30 Allard Keuter (Signicat), IRMA via the Signicat broker, for eIDs in the Netherlands and the EU [ video ]
    4. 14:30 - 14:50 Daniel Ostkamp, Leon Botros (Radboud University), Encrypted e-mail with IRMA, as a minimal lovable product [ video ]
    5. 14:50 - 15:10 Mike Alders (municipality of Amsterdam), Your identity document in IRMA. If you bring your passport or ID card, you can try it yourself. [ video ]
    6. 15:10 - 15:45 Break
    7. 15:45 - 16:15 Ingrid Rijper, Anne van Doorn (Stichting CIS), Experience with IRMA for access to centrally shared insurance data [ video ]
    8. 16:15 - 16:30 Wout Slakhorst (Nedap / Nuts), Authorisation with a KvK credential [ video ]
    9. 16:30 - 17:00 Martijn Sanders, Sietse Ringers (SIDN), State of the IRMA [ video ]
    10. 17:00 - 18:00 Drinks, offered by SURF
  • The meeting starts at 13:30, in room 002 at Drift 25, Utrecht University, within walking distance of Utrecht Central Station.
    1. 13:30 Opening, welcome
    2. 13:30 - 14:00 Remko Hoekstra and Ewout van Haeften (Centraal InkoopBureau, CIB), National rollout of the Disabled Parking App: fighting fraud with IRMA [ slides ] [ video ]
    3. 14:00 - 14:30 David Lamers and Joris Lange (Rabobank), Deep dive & learnings from Datakeeper [ slides ] [ video ]
    4. 14:30 - 15:00 Break
    5. 15:00 - 15:30 Dennis Bor and Lian Vervoort (Radboud University), Twid: countering disinformation on Twitter with IRMA [ slides ] [ video ]
    6. 15:30 - 16:00 Sietse Ringers and Martijn Sanders (SIDN), State of the IRMA [ slides ] [ video ]
    7. 16:00 - 16:30 Peter Havekes (SURF - Trust and Identity), Using IRMA as an alternative to in person identity validation [ slides ] [ video ]
    8. Afterwards there are informal drinks at The Streetfood Club, Janskerkhof 9, Utrecht.
    1. 14:00 Opening, welcome
    2. 14:05 - 14:25 Marieke Brouwer (municipality of Groningen) and Marloes van Unen (municipality of Amsterdam), IRMA-vote and pilots with citizen participation in Groningen and Amsterdam [ video ]
    3. 14:25 - 14:40 Leon Botros and Daniel Ostkamp (Radboud University), Encrypted e-mail with IRMA: first prototype [ video ]
    4. 14:40 - 14:55 Rowan Goemans and Laura Loenen (Radboud University), Cryptify: encrypted file transfer with IRMA [ video ]
    5. 14:55 - 15:00 Short break
    6. 15:00 - 15:20 Martijn van Dijk (Radboud University, now municipality of Nijmegen), Authenticity of messages and their sender via IRMA signatures as a tool against disinformation [ video ]
    7. 15:20 - 15:40 Reinder Rustema (petities.nl), Supporting petitions and initiatives with IRMA [ video ]
    8. 15:40 - 16:00 Ivar Derksen (SIDN), State of the IRMA [ video ]
    1. 14:00 Opening
    2. 14:05 Steven Gort (ICTU), IRMA and certificates of value, a vision on attribute-based credentials in relation to public services [ slides ] [ video ]
    3. 14:25 Joost Fleuren (KvK innovation lab), Know Your Customer (KYC) check with sharing of authorisation and mandate attributes, together with Ivido [ slides ] [ video ]
    4. Henk Dieter Oordt (Tweede Golf) and Lisa Bosma (Drechtsteden), ID-contact: better services from your municipality with more control over your data [ slides ] [ video ]
    5. Marc De Jong (Ministry of the Interior), Digital Government developments [ video ]
    6. 15:20 Break
    7. 15:30 Ineke van Gelder and Mike Alders (Digital Identity team, Amsterdam), Research updates and next steps with IRMA in Amsterdam [ slides ] [ video ] [ video: how does IRMA work? ]
    8. 15:50 Bernard van Gastel (Radboud University), Local voting with IRMA [ video ]
    9. 16:10 Koen de Jonge (Procolix), IRMA-meet [ video ]
    10. 16:25 Patrick Terranea (Zynyo), IRMA authentication for document signing [ video ]
    11. 16:40 Sietse Ringers (SIDN), Update on IRMA developments [ slides ] [ video ]
    12. 16:55 Closing.
  • This meeting is not in Utrecht. This time it is organised by the city of Amsterdam, at Weesperstraat 113, from 13:30 - 17:30.
    1. 13:30 - 14:00 Sietse Ringers and Tomas Harreveld (Privacy by Design Foundation), State of the IRMA [ slides ]
    2. 14:00 - 14:30 Mark Fonds, Ineke van Gelder, Mike Alders (municipality of Amsterdam), Putting residents first in the design of new services [ slides ]
    3. 14:30 - 15:00 Hans Rob de Reus (Ministry of the Interior), Trial with DigiD source identity in combination with IRMA
    4. 15:00 - 15:30 Break
    5. 15:30 - 16:00 Alexander Blom (Bloqzone), Secure calling
    6. 16:00 - 16:30 Marcel Settels (Association of Healthcare Providers for Healthcare Communication, VZVZ), Proof of concept patient authentication with IRMA [ slides ]
    7. 16:30 - 17:00 Wouter Geraedts (Privacy by Design Foundation), Identity based encryption of email with IRMA [ slides ]
    8. 17:00 - 17:30 Drinks
    1. 13:30 - 14:00 Sietse Ringers (Privacy by Design Foundation and Open University), Quick introduction to IRMA and overview of new developments [ slides ]
    2. 14:00 - 14:30 Tristan Garssen, Applications of IRMA for personal health environments (PGOs), at Ivido and Medmij [ slides ]
    3. 14:30 - 15:00 Michiel Graat (SIDN), Privacy by Design and SIDN on a joint path towards: guaranteed stability of the IRMA backbone [ slides ]
    4. 15:00 - 15:30 Break
    5. 15:30 - 16:00 Mark Fonds (municipality of Amsterdam), A user-friendly data manager for your online identity [ slides ]
    6. 16:00 - 16:30 Tomas Harreveld (Privacy by Design Foundation), IRMA pilots at various municipalities [ slides ]
    7. 16:30 - 17:30 Drinks, offered by SIDN
    1. 13:30 - 14:00 Sietse Ringers (Privacy by Design Foundation), Quick introduction to IRMA and overview of new developments [ slides ]
    2. 14:00 - 14:30 Niels Scheurleer (VGZ), Authorisation via IRMA at VGZ [ slides ]
    3. 14:30 - 15:00 Wout Slakhorst (Nedap / Nuts), Authentication for personal health environments (PGOs) [ slides ]
    4. 15:00 - 15:30 Break
    5. 15:30 - 16:00 Ivar Derksen (master student, Radboud University), Back-up and recovery of IRMA attributes [ slides ]
    6. 16:00 - 16:30 Bram Withaar (municipality of Nijmegen), Attribute issuance by municipalities: status and plans [ slides ]
    7. 16:30 - 17:30 Drinks, offered by SIDN
    1. 13:30 - 14:15 Sietse Ringers (Privacy by Design Foundation and Open University), Introduction to IRMA and overview of new developments [ slides ]
    2. 14:15 - 15:00 Koen van Ingen (Alliander), IRMA signatures: sign-by-QR and sign-by-mail [ slides ]
    3. 15:00 - 15:30 Break
    4. 15:30 - 16:00 Timen Olthof (Alliander), IRMA and blockchains [ slides ]
    5. 16:00 - 16:30 Bram Withaar (municipality of Nijmegen), IRMA for municipalities: issuance and verification of attributes [ slides ]
    6. 16:30 - 16:45 Bart Jacobs (Privacy by Design Foundation and Radboud University), Open discussion about strategies/next steps
    7. 16:45 - 17:30 Drinks
    1. 10:00 - 10:30 Oscar Koeroo (KPN information security office), Security for Remote SIM Provisioning for e-SIM
    2. 10:30 - 11:00 Pim Vullers (NXP), IRMA prototype on a NXP SmartMX3 P71 smart card
    3. 11:00 - 11:30 Break
    4. 11:30 - 12:00 Marie-José Hoefmans (Schluss), The Schluss initiative [ slides ]
    5. Stijn Meijer (Radboud University and ING), Comparing uPort’s blockchain-based identity management with IRMA
    6. 12:15 - 12:45 Sietse Ringers (Radboud University), Latest IRMA developments [ slides ]
    7. 12:45 Lunch