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Tallinn is becoming a meeting point for one of Europe’s most practical technology debates this week as specialists in digital identity, electronic signatures and trust services gather for a series of events linked to the emerging European Digital Identity Wallet.
The programme begins on Monday, 14 September, with the ETSI ESI Certification Authority Open Session at Tallinn’s Kultuurikatel. Organised by the European Telecommunications Standards Institute’s Technical Committee on Electronic Signatures and Trust Infrastructures, the half-day session is designed for certification authorities, trust-service providers, wallet developers, technical experts and policymakers.
Rather than presenting a conventional conference programme, ETSI says the meeting will use an interactive “fishbowl” format. Participants are expected to discuss practical questions around trust services, privacy, security and future developments in digital identity. The session is scheduled to run from 13:00 to 18:00 local time.
From national eID systems to a European wallet
The discussions come as European institutions and technology companies work towards a more connected digital identity environment. The European Digital Identity Wallet is intended to give people and organisations a way to store and use verified credentials and attributes in digital form. Those credentials could support interactions with public authorities, banks, employers, education providers and other services.
For businesses, the issue is not simply whether a wallet application can be built. The larger challenge is whether different systems can recognise and trust one another. A company operating in several European countries needs confidence that a digital signature, certificate or business credential issued in one jurisdiction can be checked and accepted in another.
That is where technical standards become economically important. Standards define how systems exchange information, how certificates are validated and how trust providers demonstrate compliance. They can reduce the cost of integrating different platforms and give smaller technology companies a clearer basis for developing compatible products.
Privacy and security on the agenda
ETSI’s programme places privacy and security alongside interoperability. Topics listed for the Tallinn session include trust lifecycles in the wallet ecosystem, the integration of authentic sources, the validation of wallets and attributes, and the distinction between qualified and non-qualified electronic-attestation providers.
The agenda also refers to privacy-enhancing technologies such as zero-knowledge proofs, wallet-unit attestations and pseudonyms. These tools are intended to help users prove a specific fact without necessarily revealing more personal information than a service requires.
Security discussions will include newer certificate approaches as well as traditional public-key infrastructure. The programme also looks ahead to post-quantum cryptography, reflecting the technology sector’s growing interest in how today’s digital-signature systems may need to evolve as computing capabilities change.
A wider Tallinn programme
Monday’s ETSI meeting is part of a broader concentration of digital-identity activity in Tallinn. On 15 September, the European Union Agency for Cybersecurity, or ENISA, will hold its 12th Trust Services and eID Forum in the same venue. The event will be followed on 16 September by the 18th CA-Day, organised by D-TRUST in cooperation with TÜV NORD Cert.
ENISA’s agenda includes the status of European Digital Identity Wallet implementation in EU member states, the proposed European Business Wallet, the relationship between the digital identity framework and the Cyber Resilience Act, and the future of trust services. Post-quantum cryptography is also listed among the topics for discussion.
ENISA says the forum brings together policymakers, trust-service providers, conformity-assessment bodies, supervisors, European and national institutions, and interested users. On-site places for the 2026 edition have been reported as sold out, while online participation remains available through the organiser.
Why the meetings matter for Estonia
Estonia’s long experience with electronic identification gives Tallinn a natural setting for conversations about the next stage of digital public services. The country’s e-government model has made digital signatures, online authentication and remote access to public services familiar parts of everyday life.
However, the next phase is broader than national e-government. The European framework is being developed for cross-border use, where identity credentials and business information must move between systems run by different organisations and countries. That creates opportunities for software firms, conformity-assessment specialists, cybersecurity companies and providers of digital-document services.
The Tallinn meetings are not a product launch and do not announce a single investment. Their significance lies in the less visible work of aligning technical rules before systems are deployed at scale. For companies, clear standards can make it easier to plan products and partnerships. For public institutions, shared specifications can help avoid fragmented national solutions. For users, the goal is a digital environment in which credentials are portable without weakening privacy or trust.
By hosting the ETSI session and the ENISA forum in the same week, Tallinn is placing Estonia’s digital-policy and technology community close to the European discussions that will shape the practical operation of digital identity in the years ahead.
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