A-Trust (founded in February 17, 2000) is an accredited TrustCenter in Austria
issuing smartcard based qualified certificates for Austrian citizen used in
On March 11, 2002 A-Trust has been accredited according to § 17 of the Austrian
Signature Law by Telekom-Control-Kommission, the Austrian supervisory body.
A-Trust must report its services to the supervisory authority for the Austrian
market the Telekom- Control Commission.
All services reported to the supervisory authority can be found here:
A-Trust's product range comprises user certificates, developer certificates and
corporate certificates as well as consultation services and support with the
development of e-commerce and signature applications in accordance with the
- Vienna University of Economics and Business Administration
- Membership cards for the Austrian Federal Economic Chamber and the Austrian
Ministry of Finance.
- Austrian Federal Economic Chamber
Address and Contact
Gesellschaft für Sicherheitssysteme
im elektronischen Datenverkehr GmbH
Landstraßer Hauptstraße 5
Phone. +43 (1) 713 21 51/0
Fax. +43 (1) 713 21 51/350
DVR-Number: 1065181 - FN: 195738a
Terms and Conditions
Download German version
Fingerprint of A-Trust Root Certificates
The following p7b
file contains all issuing certificates required to verify end user certificates.
Certificate Polices/Practice Statements
Certificate Practice Statements
Certificate Revocation Service
Certificate Revocation is possible 24 hours a day using the following toll-free
+43 (0) 1 715 20 60
Revocation is compulsory upon loss or compromise of the keys.
A-Trust's Directory contains all CRLs (Certificate Revocation Lists), CA
Certificates and a selection of user certificates, since A-Trust customers may
choose whether they want their certificate to be listed in the directory or
The A-Trust directory can be accessed via