ZyXEL p-660hwp Manual Do Utilizador

 Chapter 13 Certificates

P-660HWP-Dx User’s Guide

Click Security > Certificates > Trusted CAs to open the Trusted CAs screen and then click 
Import to open the Trusted CA Import screen. Follow the instructions in this screen to save 
a trusted certification authority’s certificate from a computer to the P-660HWP-Dx. The P-
660HWP-Dx trusts any valid certificate signed by any of the imported trusted CA certificates.

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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.

CRL Distribution 

Points

This field displays how many directory servers with Lists of revoked certificates 

the issuing certification authority of this certificate makes available. This field 

also displays the domain names or IP addresses of the servers.

MD5 Fingerprint

This is the certificate’s message digest that the P-660HWP-Dx 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 P-660HWP-Dx 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 in PEM 

(Base-64) Encoded 

Format

This read-only text box displays the certificate or certification request in Privacy 

Enhanced Mail (PEM) format. PEM uses 64 ASCII characters to convert the 

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).

Back

Click Back to go to the previous screen

Export

Click Export to send a file containing your certificate details.

Apply

Click Apply to save your changes back to the P-660HWP-Dx. You can only 

change the name and/or set whether or not you want the P-660HWP-Dx to 

check the CRL that the certification authority issues before trusting a certificate 

issued by the certification authority.

Cancel

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

Table 76   Security > Certificates > Trusted CAs > Details (continued)