ZyXEL g-2000 plusv2 Guia Do Utilizador

ZyXEL G-2000 Plus v2 User’s Guide

Chapter 16 Certificates

211

Figure 86   Trusted CAs

The following table describes the labels in this screen.

Table 71   Trusted CAs

PKI Storage 

Space in Use

This bar displays the percentage of the ZyXEL device’s PKI storage space that is 

currently in use. When you are using 80% or less of the storage space, the bar is 

green. When the amount of space used is over 80%, the bar is red. When the bar 

is red, you should consider deleting expired or unnecessary certificates before 

adding more certificates.

#

This field displays the certificate index number. The certificates are listed in 

alphabetical order. 

Name

This field displays the name used to identify this certificate. 

Subject

This field displays identifying information about the certificate’s owner, such as CN 

(Common Name), OU (Organizational Unit or department), O (Organization or 

company) and C (Country). It is recommended that each certificate have unique 

subject information.

Issuer

This field displays identifying information about the certificate’s issuing certification 

authority, such as a common name, organizational unit or department, 

organization or company and country. With self-signed certificates, this is the same 

information as in the Subject field.

Valid From

This field displays the date that the certificate becomes applicable. The text 

displays in red and includes a Not Yet Valid! message if the certificate has not yet 

become applicable.

Valid To

This field displays the date that the certificate expires. The text displays in red and 

includes an Expiring! or Expired! message if the certificate is about to expire or has 

already expired.

CRL Issuer

This field displays Yes if the certification authority issues Certificate Revocation 

Lists for the certificates that it has issued and you have selected the Issues 

certificate revocation lists (CRL) check box in the certificate’s details screen to 

have the ZyXEL device check the CRL before trusting any certificates issued by 

the certification authority. Otherwise the field displays “No”.

Details

Click Details to view in-depth information about the certification authority’s 

certificate, change the certificate’s name and set whether or not you want the 

ZyXEL device to check a certification authority’s list of revoked certificates before 

trusting a certificate issued by the certification authority.