ZyXEL Communications Corporation P660HNT1 Manual De Usuario

P-660HN-Tx User’s Guide

The ZyXEL Device can use certificates (also called digital IDs) to authenticate 
users. Certificates are based on public-private key pairs. A certificate contains the 
certificate owner’s identity and public key. Certificates provide a way to exchange 
public keys for use in authentication. 

• The Trusted CA screen lets you save the certificates of trusted CAs to the 

ZyXEL Device (

).

The following terms and concepts may help as you read through this chapter.

A Certification Authority (CA) issues certificates and guarantees the identity of 
each certificate owner. There are commercial certification authorities like 
CyberTrust or VeriSign and government certification authorities. The certification 
authority uses its private key to sign certificates. Anyone can then use the 
certification authority's public key to verify the certificates. You can use the ZyXEL 
Device to generate certification requests that contain identifying information and 
public keys and then send the certification requests to a certification authority.

The certification authority certificate that you want to import has to be in one of 
these file formats:

• PEM (Base-64) encoded X.509: This Privacy Enhanced Mail format uses 64 

ASCII characters to convert a binary X.509 certificate into a printable form.