Chapter 41 Certificates

•PEM (Base-64) encoded PKCS#7: This Privacy Enhanced Mail (PEM) format uses lowercase letters, uppercase letters and numerals to convert a binary PKCS#7 certificate into a printable form.

•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.

"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 5.5 on page 121 for related information on these screens.

•See Section 41.4 on page 655 for certificate background information.

41.1.3Verifying 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.

1Browse to where you have the certificate saved on your computer.

2Make sure that the certificate has a “.cer” or “.crt” file name extension.

Figure 473 Remote Host Certificates

3Double-click the certificate’s icon to open the Certificate window. Click the Details tab and scroll down to the Thumbprint Algorithm and Thumbprint fields.

 

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ZyWALL USG 100/200 Series User’s Guide