Security 
 
106  Xerox
®
 WorkCentre
®
 6655 Color Multifunction Printer 
  System Administrator Guide 
 
To install certificates, option 1: 
•  Install a device certificate on the printer. 
•  Install a copy of the CA certificate that was used to sign the device certificate of the printer on the 
other device. 
•  Install a copy of the CA certificate that was used to sign the certificate of the other device on the 
printer. 
To install certificates, option 2: 
If the other device is using a self-signed certificate, install a copy of the trusted certificate of the other 
device on the printer. 
 
Creating and Installing a Xerox
®
 Device Certificate 
If you do not have a server functioning as a certificate authority, install a Xerox
®
 Device Certificate on 
the printer. When you create a Xerox
®
 Device Certificate the printer generates a certificate, signs it, and 
creates a public key used in SSL encryption. After you install a Xerox
®
 Device Certificate on the printer, 
install the Generic Xerox
®
 Trusted CA Certificate in any device that communicates with the printer. 
Examples of other devices include client Web browsers for HTTPS or a RADIUS authentication server for 
802.1X. Installing the Generic Xerox
®
 Trusted CA Certificate ensures that users can access the printer 
using CentreWare Internet Services, and certificate warning messages do not appear. 
 
Note: Creating a Xerox
®
 Device Certificate is less secure than creating a certificate signed by a 
trusted certificate authority. 
 
1.  In CentreWare Internet Services, click Properties>Security. 
2.  Click Certificates. 
3.  Click Security Certificates. 
4.  Click the Xerox Device Certificate tab. 
5.  Select Create New Xerox Device Certificate. 
6.  Complete the form with the requested information. 
7.  Click Finish.