ZyXEL Communications MAX-306, User Manual, Page: 201 / 405

Chapter 15 The Certificates Screens
User’s Guide
201
15.4.2.1 Checking the Fingerprint of a Certificate on Your Computer
A certificate’s fingerprints are message digests calculated using the MD5 or SHA1
algorithms. The following procedure describes how to check a certificate’s
fingerprint to verify that you have the actual certificate.
1
Browse to where you have the certificate saved on your computer.
2
Make sure that the certificate has a “.cer” or “.crt” file name extension. (On some
Linux distributions, the file extension may be “.der”.)
Figure 90 Remote Host Certificates
3
Double-click the certificate’s icon to open the Certificate window. Click the
Details tab and scroll down to the Thumbprint Algorithm and Thumbprint
fields.
Figure 91 Certificate Details
4
Use a secure method to verify that the certificate owner has the same information
in the Thumbprint Algorithm and Thumbprint fields. The secure method may
very based on your situation. Possible examples would be over the telephone or
through an HTTPS connection.