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VPN SSL certificate ASA

Posted on 2014-10-28
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Last Modified: 2014-12-10
I was notified by GoDaddy that I needed to re-key my SSL since they are moving to SHA-2. The SSL is for VPN access through the firewall which is a Cisco ASA5510. To re-key I need a CSR. I do not have the original. The SSL was installed by a consultant.

How do I get the CSR from the ASA to populate the SSL key?
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Question by:Jennifer
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Expert Comment

by:auctionpay
ID: 40409194
Yes,
You need to generate a new Cert request in-order to have the cert regenerated with the new hash. Even with the original key you would still have to regenerate the key in order to use the new hash. So even if you had the original key you would still be doing this work.
James
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by:auctionpay
auctionpay earned 250 total points
ID: 40409213
From the Cisco Adaptive Security Device Manager (ASDM), select "Configuration" and then "Device Management."
Expand "Certificate Management," then select "Identity Certificates," and then "Add."
Select the button to "Add a new identity certificate" and click the "New..." link for the Key Pair.
Select the option to "Enter new key pair name" and enter a name (any name) for the key pair. Next, click the "Generate Now" button to create your key pair.
Change the key size to 2048 and leave Usage on General purpose.
Next you will define the "Certificate Subject DN" by clicking the Select button to the right of that field. In the Certificate Subject DN window, configure the following values by selecting each from the "Attribute" drop-down list, entering the appropriate value, and clicking "Add."
CN - The name through which the firewall will be accessed (usually the fully-qualified domain name, e.g., vpn.domain.com).
OU - The name of your department within the organization (frequently this entry will be listed as "IT," "Web Security," or is simply left blank).
O - The legally registered name of your organization/company.
C - If you do not know your country's two digit code
ST - The state in which your organization is located.
L - The city in which your organization is located.
Please note: None of the above fields should exceed a 64 character limit. Exceeding that limit could cause problems later on while trying to install your certificate.
Next, click "Advanced" in the "Add Identity Certificate" window.
In the FQDN field, type in the fully-qualified domain name through which the device will be accessed externally, e.g., vpn.domain.com (or the same name as was entered in the CN value in step 5).
Click "OK" and then "Add Certificate." You will then be prompted to save your newly created CSR information as a text file (.txt extension).
Remember the filename that you choose and the location to which you save it. You will need to send this file or the entirety of the text to go daddy haven't done there process so I don't know.
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by:Jennifer
ID: 40409337
Thank you very much. I will try this tomorrow.
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Pete Long earned 250 total points
ID: 40409419
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Author Comment

by:Jennifer
ID: 40421723
Thank you, I will check out the link as well.
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Author Closing Comment

by:Jennifer
ID: 40492750
Thank you, I was able to get this to work.
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