ZyXEL Communications Corporation WAC6553D-E Manuel D’Utilisation

 Chapter 11 Certificates

NWA5000 / WAC6500 Series User’s Guide

Click Configuration > Object > Certificate > Trusted Certificates > Import to open the 
Import Trusted Certificates screen. Follow the instructions in this screen to save a trusted 
certificate to the NWA/WAC.

Note: You must remove any spaces from the certificate’s filename before you can import 

the certificate.

Signature Algorithm This field displays the type of algorithm that was used to sign the certificate. Some 

certification authorities use rsa-pkcs1-sha1 (RSA public-private key encryption 
algorithm and the SHA1 hash algorithm). Other certification authorities may use rsa-
pkcs1-md5 (RSA public-private key encryption algorithm and the MD5 hash algorithm).

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.

Key Algorithm

This field displays the type of algorithm that was used to generate the certificate’s key 
pair (the NWA/WAC uses RSA encryption) and the length of the key set in bits (1024 
bits for example).

Subject Alternative 
Name

This field displays the certificate’s owner‘s IP address (IP), domain name (DNS) or e-
mail address (EMAIL).

Key Usage

This field displays for what functions the certificate’s key can be used. For example, 
“DigitalSignature” means that the key can be used to sign certificates and 
“KeyEncipherment” means that the key can be used to encrypt text.

Basic Constraint

This field displays general information about the certificate. For example, Subject 
Type=CA means that this is a certification authority’s certificate and   “Path Length 
Constraint=1” means that there can only be one certification authority in the 
certificate’s path.

MD5 Fingerprint

This is the certificate’s message digest that the NWA/WAC calculated using the MD5 
algorithm. You can use this value to verify with the certification authority (over the 
phone for example) that this is actually their certificate.

 

SHA1 Fingerprint

This is the certificate’s message digest that the NWA/WAC calculated using the SHA1 
algorithm. You can use this value to verify with the certification authority (over the 
phone for example) that this is actually their certificate.

Certificate

This read-only text box displays the certificate or certification request in Privacy 
Enhanced Mail (PEM) format. PEM uses lowercase letters, uppercase letters and 
numerals to convert a binary certificate into a printable form.

You can copy and paste the certificate into an e-mail to send to friends or colleagues or 
you can copy and paste the certificate into a text editor and save the file on a 
management computer for later distribution (via floppy disk for example).

Export Certificate

Click this button and then Save in the File Download screen. The Save As screen 
opens, browse to the location that you want to use and click Save.

OK

Click OK to save your changes back to the NWA/WAC. You can only change the name.

Cancel

Click Cancel to quit and return to the Trusted Certificates screen.

Configuration > Object > Certificate > Trusted Certificates > Edit (continued)