RTR - Rundfunk & Telekom Regulierungs-GmbH

Certification-service-provider key length

This is the length of the key used by the certification-service-provider to sign certificates.

Key length alone does not determine the quality of the signature procedure. The key type is also important in this context: For example, the Appendix of the Signature Ordinance requires a key length of at least 1020 bits for the RSA or DSA algorithm for secure electronic signatures, while only 160 bits are required for DSA variants based on elliptical curves.

active?  
qual.?  
adv.?  
Certification-service-provider key length Provider Certification service
active service qualified certificates advanced electronic signatures 2048 A-Trust Gesellschaft für Sicherheitssysteme im elektronischen Datenverkehr GmbH a.sign Premium
active service non-qualified certificates no advanced electronic signatures 2048 Bundesamt für Eich- und Vermessungswesen Sicherer Zeitstempeldienst
active service qualified certificates advanced electronic signatures mind. 2048 A-Trust Gesellschaft für Sicherheitssysteme im elektronischen Datenverkehr GmbH a.sign premium mobile
suspended service qualified certificates advanced electronic signatures 1024 A1 Telekom Austria AG (bis 30.09.2002: Datakom Austria GmbH) a-sign Premium
suspended service qualified certificates advanced electronic signatures 1024 A-Trust Gesellschaft für Sicherheitssysteme im elektronischen Datenverkehr GmbH a.sign Uni
suspended service qualified certificates advanced electronic signatures 2048 A-Trust Gesellschaft für Sicherheitssysteme im elektronischen Datenverkehr GmbH trust|sign