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Chapter 33 Certificates
ZyWALL 110/310/1100 Series User’s Guide
415
• Binary PKCS#12: This is a format for transferring public key and private key certificates. The
private key in a PKCS #12 file is within a password-encrypted envelope. The file’s password is not
connected to your certificate’s public or private passwords. Exporting a PKCS #12 file creates this
and you must provide it to decrypt the contents when you import the file into the ZyWALL.
Note: Be careful not to convert a binary file to text during the transfer process. It is easy
for this to occur since many programs use text files by default.
Finding Out More
•See Section 33.4 on page 428 for certificate background information.
33.1.3 Verifying a Certificate
Before you import a trusted certificate into the ZyWALL, you should verify that you have the correct
certificate. You can do this using the certificate’s fingerprint. A certificate’s fingerprint is a message
digest calculated using the MD5 or SHA1 algorithm. 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.
Figure 273 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.