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Public Key Infrastructures

The administration of users, identities and their authentication data is becoming more important than ever in the electronic world. The conventional method of password-based user authentication gives rise to security issues as the intrusion techniques (phishing, Trojans etc) are getting more and more sophisticated. In addition, this method is also becoming a real challenge for users who have to memorise and regularly change passwords for a rapidly growing number of different systems and access types. These problems can be solved by certificate-based authentication solutions which can be bound to an additional hardware/security token (smart card, USB flash drive).

Certificate-based solutions can be used not only for user authentication, but also for signing and encrypting data and messages. A so-called public key infrastructure (PKI) is required to generate and administrate such user certificates. Depending on the application, the security requirements and the company size, different types of infrastructures are possible – from “small” Microsoft Windows- or Linux-based PKIs all the way to complex trust centre environments complying with the stringent requirements of the digital signature legislation.

Certificates are used in various technical guises. Different certificate-based applications rely on different formats, for example

  • X.509
  • Card Verifiable Certificate (CV)
  • EMV

PKI by secunet

secunet is your experienced partner for the implementation of your PKI. We have played a decisive role in setting up all accredited certification services according to the German Digital Signature Act and successfully put our extensive know-how to the test in more than 200 PKI projects of various sizes. With our help you can efficiently and securely implement your PKI solution.

In addition to its PKI consultancy role, secunet supplies solutions and/or components for

  • Certificate Authority (CA)
  • Registration Authority (RA)
  • directory services
  • status information services
  • access to card management and/or personalisation systems 
  • certificate-based applications


Get directly into contact with our specialist division.

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Certification Service Provider according to the German Singature Act