Decrypt Pre-shared key for Cisco IPSEC VPN

There are a couple ways to retrieve a pre-shared key for a Cisco IPSEC VPN. The easiest way is to actually get it from the running config on the ASA. Unfortunately using a show run will only give you asterisks for the PSK, but you can use this command to see the PSK in the config:

more system:/running-config

If you have access to a working PCF file, you can also retrieve the key from that. The PCF file can be opened in your favorite editor to view and edit configurations, but the PSK is still not in a human readable form, but it can be decrypted using the tool at this site:

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s