The OpenID Foundation joined participants from across the industry at the 13th ISO mDL interoperability test event in La Ciotat, France last week, taking its conformance test suite to one of the most significant gatherings of digital identity implementers in the international standards calendar.

The two-day event, held 28–29 May, focused on interoperability testing against ISO/IEC 18013-5 and ISO/IEC TS 18013-7, including the draft appendices that reference the OpenID for Verifiable Presentations (VP) 1.0 Final and the High Assurance Interoperability Profile (HAIP) 1.0 Final specifications. These are the foundational standards for mobile driving licences and related document types. 

Conformance testing in action

The event gave implementers of OpenID4VP and the HAIP the opportunity to run their solutions through the OpenID Foundation’s conformance tests, with a significant number passing the tests on the day.

Where implementations required refinement, the tests did exactly what they were designed to do, giving implementers clear, detailed feedback on specific issues so they could resolve them quickly and move forward with confidence.

 Joseph Heenan, the OpenID Foundation’s Standards Specialist & Certification Director, also gave a presentation to the delegates at the international showcase, covering the value of conformance testing, how to use the OpenID Foundation’s test suite, and where development currently stands. This was followed by a live demonstration of the conformance suite working with a HAIP compliant wallet, bringing the tests to life for an international audience of standards bodies, government representatives and industry implementers.

The event also generated valuable feedback from participants on further improvements to the tests, input the OpenID Foundation team is already acting on.

Joseph said: “The number of successful implementations we saw in La Ciotat is a strong signal that OpenID for Verifiable Presentations and HAIP are ready for real-world deployment. The results from the OpenID Foundation tests showed that conformance testing isn't just a checkbox. It plays a crucial role in building scalable and interoperable ecosystems.”

Freely available, open source tests 

Implementers of OpenID for Verifiable Presentations, OpenID for Verifiable Credential Issuance and HAIP can access the open source tests to build their implementations against. These are available at no cost using the links below. 

• Tests for OpenID for Verifiable Presentations 1.0 + HAIP 1.0 (with SD-JWT and mdoc).
• Tests for OpenID for Verifiable Credential Issuance 1.0 + HAIP 1.0 (with SD-JWT and mdoc).  

The OpenID Foundation welcomes any feedback on the tests to help improve them. Feedback can be sent to certification@oidf.org  

About the OpenID Foundation

The OpenID Foundation (OIDF) is a global open standards body committed to helping people assert their identity wherever they choose. Founded in 2007, we are a community of technical experts leading the creation of open identity standards that are secure, interoperable, and privacy preserving. The Foundation’s OpenID Connect standard is now used by billions of people across millions of applications. In the last five years, OAuth2 - the FAPI standard for interoperable, high security - has become the standard of choice for Open Banking and Open Data implementations, allowing people to access and share data across entities. Today, the OpenID Foundation’s standards are the connective tissue that enable people to assert their identity and access their data at scale, the scale of the internet, enabling “networks of networks” to interoperate globally. Individuals, companies, governments and non-profits are encouraged to join or participate. Find out more at openid.net.