ZyXEL Communications MAX-207HW2, User Manual

Page: 144 / 180

User’s Guide
145
C
H A P T E R
1 3
The Certificates Screens
13.1 Overview
Use the TOOLS (
工具
) > Certificates (
憑證
) screens to import public key
certificates on the WiMAX Modem.
The WiMAX Modem can use public key certificates (also sometimes 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.
Public key certificates are used by web browsers to ensure that a secure web site
is legitimate. When a certificate authority such as VeriSign, Comodo, or Network
Solutions (to name a few) receives a certificate request from a website operator,
they confirm that the web domain and contact information in the request match
those on public record with a domain name registrar. If they match, then the
certificate is issued to the website operator, who then places it on his site to be
issued to all visiting web browsers to let them know that the site is legitimate.
13.1.1 What You Can Do in This Chapter
• The My Certificates screen ( Section 13.2 on page 146 ) lets you import the
WiMAX Modem’s CA-signed certificates.
• The Trusted CAs screen ( Section 13.3 on page 146 ) lets you import trusted
CA-signed certificates.
13.1.2 What You Need to Know
The following terms and concepts may help as you read through this chapter.
Certificate Authorities
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.