ZyXEL Communications P-660R-F1 series, Руководство пользователя

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Chapter 9 Certificates
P-660R-F1 Series User’s Guide
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Version This field displays the X.509 version number.
Serial Number This field displays the certificate’s identification number given by the device
that created the certificate.
Subject This field displays information that identifies the owner of the certificate, such
as Common Name (CN), Organizational Unit (OU), Organization (O) and
Country (C).
Issuer This field displays identifying information about the default self-signed
certificate on the ZyXEL Device that the ZyXEL Device uses to sign the
trusted remote host certificates.
Signature Algorithm This field displays the type of algorithm that the ZyXEL Device used to sign
the certificate, which is rsa-pkcs1-sha1 (RSA public-private key encryption
algorithm and the SHA1 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 ZyXEL Device 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 ZyXEL Device calculated using
the MD5 algorithm. You cannot use this value to verify that this is the remote
host’s correct certificate because the ZyXEL Device has signed the certificate;
thus causing this value to be different from that of the remote host’s correct
certificate.
SHA1 Fingerprint This is the certificate’s message digest that the ZyXEL Device calculated using
the SHA1 algorithm. You cannot use this value to verify that this is the
remote host’s correct certificate because the ZyXEL Device has signed the
certificate; thus causing this value to be different from that of the remote
host’s correct 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 this to return to the previous screen without saving.
Export Click this 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 .
LABEL DESCRIPTION