IRMA meetings

About two or three times per year an IRMA meeting is organised at SURFnet in Utrecht, free of charge, open to everyone interested in identity management in general and in IRMA in particular. The meetings usually draw between 25 and 50 participants, from industry, government and academia. The atmosphere is open and very much content-oriented.

  • Location: SURFnet, Hoog Overborch (Hoog Catharijne), Utrecht route, about 5 min. walking distance from Utrecht Central train station

  • Language: mix of English and Dutch, depending on speaker and audience.

  • Announcements: via the IRMA mailing list and via Twitter. If you like to be included (or deleted) from this list, please send an email to: irma ‘at’

  • Participation is free, but registration is appreciated by sending a short message to the email address: I.Haerkens ‘at’

Next IRMA meeting: Friday afternoon, July 5, 2019.

The programme, with talks about recent developments around IRMA, will appear here in due course.

Earlier IRMA meeting: Friday, March 8, 2019.

Morning programme:

10:00 - 12:30 Technical workshop for developers


12:30 - 13:30, offered by SURF; requires registration, see below

Afternoon programme: Several general presentations about IRMA and its applications

  1. 13:30 - 14:00 “Quick introduction to IRMA and overview of new developments”, Sietse Ringers, Privacy by Design Foundation and Open University [slides]

  2. 14:00 - 14:30 “Machtiging via IRMA bij VGZ”, Niels Scheurleer, VGZ [slides]

  3. 14:30 - 15:00 “Authenticatie voor Persoonlijk Gezondheidsomgevingen (PGOs)”, Wout Slakhorst, Nedap / Nuts [slides]

  4. 15:00 - 15:30 Coffee / Tea

  5. 15:30 - 16:00 “Back-up and recovery of IRMA attributes”, Ivar Derksen, master student, Radboud University [slides]

  6. 16:00 - 16:30 “Attribuut-uitgifte door gemeenten: status en plannen”, Bram Withaar, Gemeente Nijmegen [slides]


16:30 - 17:30, offered by SURF; requires registration, see below

Registration: Participation is free, but requires registration, by sending an email to: I.Haerkens ‘at’ Lunch and drinks are only available if you register on or before March 5. Please include in your email:

I will participate in the:

  • morning technical programme: Yes / No
  • lunch: Yes / No
  • afternoon talks programme: Yes / No
  • drinks: Yes / No.

Earlier IRMA meeting: Friday, June 1, 13:30 – 17:30, 2018.


  1. 13:30 - 14:15 “Introduction to IRMA and overview of new developments” Sietse Ringers, Privacy by Design Foundation and Open University [slides]

  2. 14:15 - 15:00 “IRMA signatures: sign-by-QR and sign-by-mail” Koen van Ingen, Alliander [slides]

  3. 15:00 - 15:30 Tea/coffee break

  4. 15:30 - 16:00 “IRMA and blockchains” Timen Olthof, Alliander [slides]

  5. 16:00 - 16:30 “IRMA for municipalities: issuance and verification of attributes” Bram Withaar, Gemeente Nijmegen [slides]

  6. 16:30 - 16:45 Open discussion about strategies/next steps. Bart Jacobs, Privacy by Design Foundation and Radboud University.

  7. 16:45 - 17:30 Drinks

Earlier IRMA meeting: Friday, Nov. 3, 10:00 - 13:00, 2017.


  1. 10.00 - 10:30 Oscar Koeroo (KPN information security office). “Security for Remote SIM Provisioning for e-SIM”

    Abstract: Traditionally phones use SIM cards to authenticate subscribers to the mobile network. The SIM cards contain information about the home network and several authentication keys of the mobile network and the subscriber. Manufacturers are miniaturising the SIM cards to reduce costs and aid applicability in Phones and accessories. The step beyond the nano-SIM card form-factor is the complete removal of the SIM card itself and replacing it with an e-SIM, or embedded SIM. With this embedded SIM mobile network operators can load the same SIM card information dynamically into a phone. This opens up a new attack surface, by virtue of new components in mobile devices, new provisioning protocol as alternative to the physical SIM card. It also has geo-political implications, depending upon the trust model. And depending upon the architecture and assuming we also include IoT with e-SIMs it could also introduce a new business continuity risk to 60B devices globally, as per prospect of the adoption of this technology in the foreseeable future.

  2. 10:30 - 11:00 Pim Vullers (NXP). “IRMA prototype on a NXP SmartMX3 P71 smart card”

  3. 11:00 - 11:30 Pauze

  4. 11:30 - 12:00 Marie-José Hoefmans (Schluss). “The Schluss initiative”, see for back ground information. [slides]

  5. 12:00 - 12:15 Stijn Meijer (Radboud University en ING) “Comparing uPort’s blockchain-based identity management with IRMA” see

  6. 12:15 - 12:45 Sietse Ringers (Radboud Universiteit) “Latest IRMA developments”, see [slides]

  7. 12:45 Lunch

    In case you wish to enjoy the sandwhich lunch, you need to register by sending an email to: I.Haerkens ‘at’, before Wednesday nov. 1.