ZyXEL ZyWALL 5 UTM User Guide - Page 423
Certificates, ZyWALL 5/35/70 Series User's Guide, SECURITY > CERTIFICATES > Trusted
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Chapter 20 Certificates The following table describes the labels in this screen. Table 124 SECURITY > CERTIFICATES > Trusted Remote Hosts > Details LABEL DESCRIPTION Name This field displays the identifying name of this certificate. If you want to change the name, type up to 31 characters to identify this key certificate. You may use any character (not including spaces). Certification Path Click the Refresh button to have this read-only text box display the end entity's own certificate and a list of certification authority certificates in the hierarchy of certification authorities that validate a certificate's issuing certification authority. For a trusted host, the list consists of the end entity's own certificate and the default self-signed certificate that the ZyWALL uses to sign remote host certificates. Refresh Click Refresh to display the certification path. Certificate Information These read-only fields display detailed information about the certificate. Type This field displays general information about the certificate. With trusted remote host certificates, this field always displays CA-signed. The ZyWALL is the Certification Authority that signed the certificate. X.509 means that this certificate was created and signed according to the ITU-T X.509 recommendation that defines the formats for public-key certificates. 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 ZyWALL that the ZyWALL uses to sign the trusted remote host certificates. Signature Algorithm This field displays the type of algorithm that the ZyWALL 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 ZyWALL 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. ZyWALL 5/35/70 Series User's Guide 423