For different software you can find here illustrated guides:

How to request and pick up certificates

These guides describe how to generate a cryptographic key pair and to request the public key to be certified, and how to combine everything into a digital ID after receiving the certificate.

How to import and use digital IDs

These guides describe how to import a digital ID into email programs and other software and how to use it.


These guides describe special situations: Creating keys with OpenSSL, Updating an existing digital ID with a new certificate etc.