ZyXEL P-2812HNU-51c User Manual download pdf (Page 281)

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P-2812HNU-51c User’s Guide

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CHAPTER 14

Certificate

14.1 Overview

The P-2812HNU-51c 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.

14.1.1 What You Can Do in this Chapter

•The Local Certificates screen lets you generate certification requests and

import the P-2812HNU-51c's CA-signed certificates (Section 14.4 on page 289).

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

2812HNU-51c (Section 14.4 on page 289).

14.2 What You Need to Know

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

Certification Authority

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 P-

2812HNU-51c to generate certification requests that contain identifying

information and public keys and then send the certification requests to a

certification authority.

Certificate File Format

The certification authority certificate that you want to import has to be in one of

these file formats:

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