ZyXEL p-2802h-i1 Manual Do Utilizador

Chapter 15 Certificates

P-2802H(W)(L)-I Series User’s Guide

Certification authorities maintain directory servers with databases of valid and revoked 
certificates. A directory of certificates that have been revoked before the scheduled expiration 
is called a CRL (Certificate Revocation List). The ZyXEL Device can check a peer’s 
certificate against a directory server’s list of revoked certificates. The framework of servers, 
software, procedures and policies that handles keys is called PKI (Public-Key Infrastructure).

Certificates offer the following benefits.

• The ZyXEL Device only has to store the certificates of the certification authorities that 

you decide to trust, no matter how many devices you need to authenticate. 

• Key distribution is simple and very secure since you can freely distribute public keys and 

you never need to transmit private keys.

 You can have the ZyXEL Device act as a certification authority and sign its own certificates.

This section summarizes how to manage certificates on the ZyXEL Device.

Figure 118   Certificate Configuration Overview

Use the My Certificates screens to generate and export self-signed certificates or certification 
requests and import the ZyXEL Device’s CA-signed certificates.
Use the Trusted CAs screens to save CA certificates to the ZyXEL Device.
Use the Trusted Remote Hosts screens to import self-signed certificates.
Use the Directory Servers screen to configure a list of addresses of directory servers (that 
contain lists of valid and revoked certificates).

Click Security > Certificates > My Certificates to open the My Certificates screen. This is 
the ZyXEL Device’s summary list of certificates and certification requests. Certificates 
display in black and certification requests display in gray.