Security
TPR User Manual
67
7.6
How to Use Certificates Correctly
The TPR has its own certificate management. This section explains
how certificates are used and when the use of certificates is
recommended.
What are
Certificates?
Certificates can be used in TCP/IP-based networks to encrypt data
and to authenticate communication partners. Certificates are
electronic messages containing a key (public key) and a signature.
Benefits and
Purpose
The use of certificates allows for various security mechanisms. Use
certificates in the TPR
• to encrypt the connection to the Personal Printing server; see:
• to check the identity of the Personal Printing server; see:
47.
• to receive encrypted print data; see:
• to check the identity of the TPR in the network; see:
• to authenticate the TPR/client if the administrative web access
to the TPR Control Center is protected via HTTPS (SSL/TLS); see:
If you want to use certificates, it is advisable to restrict the
administrative web access to the TPR Control Center so that
certificates on the TPR cannot be deleted by unauthorized persons;
see:
Which Certificates
are available?
Both self-signed and externally signed certificates can be used with
the TPR. The following certificates can be distinguished:
•
Upon delivery, a certificate (the so-called
default certificate)
is
stored in the TPR. It is recommended that you replace the
default certificate by a self-signed certificate or requested
certificate as soon as possible.
