ZyXEL Communications VSG-1200 V2 User Manual

VSG-1200 V2 User’s Guide

Chapter 31 SSL Certificate

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This chapter shows you how to set up Secure Socket Layer (SSL) certificates on the VSG.

SSL (Secure Socket Layer) security is a standard Internet protocol for secure communications 
that uses a combination of certificate-based authentication and public-key encryption. SSL 
protects data transfer between the web configurator on the VSG and the web browser on a 
connected computer.

With SSL security activated, data (such as user name and password) transferred between the 
VSG and the computer is protected when you access the VSG using a web browser that 
supports SSL.

A digital certificate (also referred to as a certificate) contains the key owner’s name and public 
key, the name of the issuing certification authority, the certification authority’s digital 
signature and a certificate validity time limit and other optional information fields.

A Certification Authority (CA) issues digital certificates and guarantees the identity of the 
certificate owner. When someone requests a certificate from a CA, the CA requires proof of 
identity. There are both commercial certificate authorities like CyberTrust and VeriSign, as 
well as government certificate authorities.

After you apply for and receive a certificate from a certificate authority, import the certificate 
and the private key to the VSG.

Click System Tools and SSL Certificate in the navigation panel to display the screen as 
shown next.