Zyxel-communications 70 Series Manual de usuario descargar pdf (Pagina 361)

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ZyWALL 5/35/70 Series User’s Guide

361 Chapter 20 Certificates

20.12 Verifying a Trusted Remote Host’s Certificate

Certificates issued by certification authorities have the certification authority’s signature for

you to check. Self-signed certificates only have the signature of the host itself. This means that

you must be very careful when deciding to import (and thereby trust) a remote host’s self-

signed certificate.

20.12.1 Trusted Remote Host Certificate Fingerprints

A certificate’s fingerprints are message digests calculated using the MD5 or SHA1 algorithms.

The following procedure describes how to use a certificate’s fingerprint to verify that you have

the remote host’s actual certificate.

1 Browse to where you have the remote host’s certificate saved on your computer.

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

Figure 169 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.

Import Click Import to open a screen where you can save the certificate of a remote host

(which you trust) from your computer to the ZyWALL.

Refresh Click this button to display the current validity status of the certificates.

Table 117 Trusted Remote Hosts (continued)

LABEL DESCRIPTION

1 2 ... 356 357 358 359 360 361 362 363 364 365 366 ... 806 807

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Zyxel-communications 70 Series Manual de usuario Pagina 361

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