ZyXEL Communications Corporation NBG410W3G Manuel D’Utilisation
Chapter 11 Certificates
NBG410W3G Series Users Guide
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Serial Number
This field displays the certificates identification number given by the certification
authority or generated by the ZyXEL Device.
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 certificates issuing
certification authority, such as Common Name, Organizational Unit,
Organization and Country.
With self-signed certificates, this is the same as the Subject Name field.
Signature Algorithm This field displays the type of algorithm that was used to sign the certificate. The
ZyXEL Device uses rsa-pkcs1-sha1 (RSA public-private key encryption
algorithm and the SHA1 hash algorithm). Some 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
certificates 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 owners IP address (IP), domain name (DNS)
or e-mail address (EMAIL).
Key Usage
This field displays for what functions the certificates 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 authoritys certificate and
Path Length Constraint=1 means that there can only be one certification
authority in the certificates path.
MD5 Fingerprint
This is the certificates message digest that the ZyXEL Device calculated using
the MD5 algorithm.
SHA1 Fingerprint
This is the certificates message digest that the ZyXEL Device calculated using
the SHA1 algorithm.
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 a certification request into a certification authoritys web
page, an e-mail that you send to the certification authority or a text editor and
save the file on a management computer for later manual enrollment.
You can copy and paste a certificate into an e-mail to send to friends or
colleagues or you can copy and paste a certificate into a text editor and save the
file on a management computer for later distribution (via floppy disk for
example).
Apply
Click Apply to save your changes back to the ZyXEL Device. You can only
change the name, except in the case of a self-signed certificate, which you can
also set to be the default self-signed certificate that signs the imported trusted
remote host certificates.
Cancel
Click Cancel to quit and return to the My Certificates screen.
Table 52 SECURITY > CERTIFICATES > My Certificates > Details (continued)
LABEL
DESCRIPTION