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We will be pleased to assist you with any questions you may have about our Signed Data Service ASP solution. Our FAQs section may already have the answer to your question. If not, please feel free to contact us by phone.

LDAP stands for Lightweight Directory Access Protocol. It is basically the public telephone directory for digital certificates. Here you can request the status of certificates in the D-Trust repository service.

Do you want to know the status of a D-Trust certificate? Then please complete the form provided below and send it to us. To request the status of the certificate you will need its serial number in decimal or hexadecimal form and the name of the issuing Certification Authority (CA).

Efficient encryption of our data is one of the cornerstones of modern IT security. Cryptographic methods, however, are not an invention of modern times. People were already encrypting secret messages thousands of years ago. A look at the history of cryptography.

Qualified Seal ID ensures the origin and integrity of data.

For the 10th time, Bundesdruckerei has published a sustainability report according to the requirements of the German Sustainability Code (DNK). The 2021 issue is now online. 

Citizens will soon be able to prove their digital identity with a single click on their smartphone anywhere in the European Union. What exactly does the EU Commission have in mind with EUid, what role will electronic wallets play and what are the new stipulations in the eIDAS Regulation.

An SSL/TLS certificate assures the user that a real and trusted person or institution is behind an Internet presence.

According to plans by the European Commission (EC), browsers will have to accept the European standard for qualified website authentication certificates in future. Opponents of the plan believe that it would present major security risks for internet users. Is this criticism valid?

Data are everywhere. They make our world simpler, faster, more effective – and require special protection. To guarantee the security of our data, there are a wide variety of laws, guidelines and control bodies in Germany and the EU. An overview.