Cisco Cisco Web Security Appliance S360 User Guide

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AsyncOS 9.1.1 for Cisco Web Security Appliances User Guide
 
Chapter 22      Perform System Administration Tasks
  Certificate Management
Step 3
In the Key field, click Browse; locate the file to upload.
Note
The key length must be 512, 1024, or 2048 bits. The private key file must be in PEM format. DER format 
is not supported.
Step 4
If the key is encrypted, select Key is Encrypted
Step 5
Click Upload Files.
Generating a Certificate and Key
Step 1
Select Use Generated Certificate and Key.
Step 2
Click Generate New Certificate and Key.
a.
In the Generate Certificate and Key dialog box, enter the necessary generation information. 
Note
You can enter any ASCII character except the forward slash ( / ) in the Common Name field.
b.
Click Generate in the Generate Certificate and Key dialog box. 
When generation is complete, the certificate information is displayed in the Certificate section, 
along with two links: Download Certificate and Download Certificate Signing Request. In 
addition, there is a Signed Certificate option that is used to upload the signed certificate when you 
receive it from the Certificate Authority (CA).
Step 3
Click Download Certificate to download the new certificate for upload to the appliance.
Step 4
Click Download Certificate Signing Request to download the new certificate file for transmission to a 
Certificate Authority (CA) for signing. See 
 for more 
information about this process.
a.
When the CA returns the signed certificate, click Browse in the Signed Certificate portion of the 
Certificate field to locate the signed-certificate file, and then click Upload File to upload it to 
the appliance.
b.
Ensure the CA’s root certificate is present in the appliance’s list of trusted root certificates. If it is 
not, add it. See 
 for more information.
Certificate Signing Requests
The Web Security appliance cannot generate Certificate Signing Requests (CSR) for certificates 
uploaded to the appliance. Therefore, to have a certificate created for the appliance, you must issue the 
signing request from another system. Save the PEM-formatted key from this system because you will 
need to install it on the appliance later.
You can use any UNIX machine with a recent version of OpenSSL installed. Be sure to put the appliance 
hostname in the CSR. Use the guidelines at the following location for information on generating a CSR 
using OpenSSL: 
http://www.modssl.org/docs/2.8/ssl_faq.html#ToC28