François Chung, Ph.D.
Digital identity wallet

Digital identity wallet

Zetes project @Brussels, Belgium (2022). For many years, transactional and online services have relied on end users using devices such as desktop computers and laptops. Therefore, solutions for remote identity proofing and digital signatures have been designed to the characteristics of such devices. However, these devices are more and more replaced by mobile devices such as tablets and smartphones, which raises new challenges.

For example, smart cards and tokens, which are typically connected to desktop computers and laptops using USB devices, cannot be easily connected to smartphones, or cannot at all. Furthermore, given developments in cloud computing, solutions have emerged in the last few years where the process of digital signature creation is done in a distributed way by different systems that may be controlled by different actors.

This is why recent standards have introduced the concept of mobile identity (e.g. driving licence in association with a mobile device) and electronic signature created using a remote signature creation device (i.e. electronic signature device is replaced by cloud-based services offered and managed by a trusted service provider), which can be both made available to the end user through a digital identity wallet as a smartphone app.

The related standards are:

  • ISO/IEC 18013-5:2021 - Personal identification, ISO-compliant driving licence, Part 5: Mobile driving licence (mDL) application;
  • ETSI TS 119 432 - Electronic Signatures and Infrastructures (ESI), Protocols for remote digital signature creation;
  • CSC standard - Architectures and protocols for remote signature applications.

In this project, my tasks are first related to the analysis of these standards so as to investigate how they could be implemented in practice and what is their impact on the project scope. Then, my tasks are related to the analysis of business needs (whether internal or from the customer), software implementation (e.g. software releases and documentation) and project management (e.g. project coordination with the customer).