G-3000H User’s Guide

Table 41 My Certificate Details (continued)

LABEL

DESCRIPTION

 

 

Certificate Path

Click the Refresh button to have this read-only text box display the hierarchy of

 

certification authorities that validate the certificate (and the certificate itself).

 

If the issuing certification authority is one that you have imported as a trusted

 

certification authority, it may be the only certification authority in the list (along

 

with the certificate itself). If the certificate is a self-signed certificate, the

 

certificate itself is the only one in the list. The ZyAIR does not trust the certificate

 

and displays “Not trusted” in this field if any certificate on the path has expired or

 

been revoked.

Refresh

Click Refresh to display the certification path.

 

 

Certificate

These read-only fields display detailed information about the certificate.

Information

 

Type

This field displays general information about the certificate. CA-signed means

 

that a Certification Authority signed the certificate. Self-signed means that the

 

certificate’s owner signed the certificate (not a certification authority). “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 certification

 

authority or generated by the ZyAIR.

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 certificate’s 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

 

ZyAIR uses rsa-pkcs1-sha1 (RSA public-private key encryption algorithm and

 

the SHA1 hash algorithm). Some certification authorities may use ras-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

 

certificate’s key pair (the ZyAIR uses RSA encryption) and the length of the key

 

set in bits (1024 bits for example).

Subject Alternative

This field displays the certificate owner‘s IP address (IP), domain name (DNS) or

Name

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 ZyAIR calculated using the MD5

 

algorithm.

138

Chapter 11 Certificates