SSH - RSA fingerprint

Unanswered Question
Jul 7th, 2007

When I make a ssh connection (5510, pix 7) PuTTY gives a security alert to confirm the pix rsa key fingerprint. Is there a way to see the fingerprint of the pix generated rsa key?

I have this problem too.
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JBDanford2002 Sat, 07/07/2007 - 05:23

sh cry key mypubkey rsa will show you the public key. The fingerprint should be displayed when you first connect via putty. Did the ssh key recently change?

ctctech Sat, 07/07/2007 - 07:38

I would like to know if the fingerprint shown by PuTTY matches the pix public key fingerprint.

JBDanford2002 Sun, 07/08/2007 - 03:52

I dont know of any way other than to zeroize the rsa key, generate a new key and document the fingerprint when you reconnect.

ERAJAB Wed, 01/11/2012 - 01:35

Yes, the need to document the SSH fingerprints after install have been a bit of a pain for quite some time.

Dont know how popular external links are in this forum, but Didier Stevens seem to have solved this

problem for us, and even provided a Python script for it:

http://blog.didierstevens.com/2012/01/01/calculating-a-ssh-fingerprint-from-a-cisco-public-key/

Regards,

Jan

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Posted July 7, 2007 at 5:10 AM
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