Trust services: authentication services

State Authentication Service (TARA)

The Estonian authentication service is a trust service provided centrally by the Information System Authority, whose software (TARA) is interfaced with the authentication methods offered by third parties and The State Authentication Service (TARA) provides a secure authentication with Estonian ID-card, mobile-ID, Smart-ID and European Union notified eID (eIDAS) in public online services. RIA provides the service for all authorities in the government sector as listed on the Ministry of Finance webpage » in the spreadsheet » (XLSX).

The purpose of eIDAS is to facilitate the cross-border use of e-services. As of May 2022, the eID means of BelgiumCroatia, Czech RepublicDenmark, EstoniaFranceGermany Italy LatviaLithuaniaLuxembourgMaltaPortugalSlovakiaSpainSweden and the Netherlands have been notified under the eIDAS Regulation. Overview of pre-notified and notified eID schemes under eIDAS »

The software is open-source and available in the E-government building blocks repository ».

To integrate your online service with TARA, fill in the application and send it (digitally signed) to RIA’s customer support [email protected]. Successful integration with the TARA test service is a prerequisite for integration with the production service.

Please also contact [email protected] with any further questions.

Further information on the national authentication service:

The information required to join TARA can be found on the RIA website under the authentication services of RIA. It has application forms for those who want to start using the service, terms and conditions, information on test environments and an effective price list.

The technical materials for persons who want to start using the service can be found in the eGov GitHub under TARA documentation.