ZyXEL Communications P-660HWP-D1, User Manual

Page: 201 / 374

Chapter 13 Certificates
P-660HWP-D1 User’s Guide
201
13.11 Trusted CA > Import
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-D1. The P-
660HWP-D1 trusts any valid certificate signed by any of the imported trusted CA certificates.
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You must remove any spaces from the certificate’s filename before you can
import the certificate.
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-D1 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-D1 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-D1. You can only
change the name and/or set whether or not you want the P-660HWP-D1 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)
LABEL DESCRIPTION