C E Rtific A Te S; Overview; What You Can Do In This Chapter; What You Need To Know - ZyXEL Communications XMG3512-B10A User Manual

2 0 .1 Ove r vie w
The XMG 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.
2 0 .1 .1 W h a t You Ca n D o in t h is Ch a pt e r
• Use the
L o c a l C e rtific a te s
certificates
• Use the
T ruste d C A
200).
2 0 .2 W h a t You N e e d t o Kn ow
The following terms and concepts may help as you read through this chapter.
Ce r t ifica t ion Aut hor it y
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 XMG to generate
certification requests that contain identifying information and public keys and then send the
certification requests to a certification authority.
2 0 .3 Th e Loca l Ce r t ifica t e s Scr e e n
Click
Se c urity > C e rtific a te s
certificates and certification requests.
Fig ure 121
screen to generate certification requests and import the XMG's CA-signed
(Section 20.4 on page
screen to save the certificates of trusted CAs to the XMG
to open the
Security > Certificates > Local Certificates
XMG3512-B10A User's Guide
C
H A P T E R
Ce r t ifica t e s
200).
screen. This is the XMG's summary list of
L o c a l C e rtific a te s
197
2 0
(Section 20.4 on page