Chapter 31 Ssl Certificate; Ssl Certificate Overview; Certificate; Certificate Authorities - ZyXEL Communications Vantage Service Gateway VSG-1200 V2 User Manual

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

31.1 SSL Certificate Overview

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.

31.1.1 Certificate

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.

31.1.2 Certificate Authorities

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.

31.2 Downloading SSL Certificate to the VSG

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.

Chapter 31 SSL Certificate

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