howto calculate fingerprints from ssh host keys?

Hi, this might be a stupid question but I did not find a quick answer by a google search or by reading the ssh faq: At the first ssh login the user is presented a fingerprint, e.g. DSA key fingerprint is df:c2:72:01:ee:0d:05:f9:a1:4f:de:56:a7:48:bd:90 I tried to figure out how to gather these

Re: howto calculate fingerprints from ssh host keys?

## Thomas Gebhardt ([EMAIL PROTECTED]): I tried to figure out how to gather these fingerprints from a bunch of servers. Obviously ssh-keyscan can be used to collect the public keys, but is there an easy way to calculate the fingerprints? $ ssh-keygen -l -f ssh_host_dsa_key.pub $ 1024

Re: howto calculate fingerprints from ssh host keys?

Hi, $ ssh-keygen -l -f ssh_host_dsa_key.pub $ 1024 97:46:de:e0:a1:71:76:6f:b6:e8:f1:40:2a:63:bc:18 ssh_host_dsa_key.pub HTH, yes :-) So I had missed two points: 1. ssh-keygen does more than generate keys. 2. the fingerprints are generated from the secret keys, not from the public keys.

Re: howto calculate fingerprints from ssh host keys?

## Thomas Gebhardt ([EMAIL PROTECTED]): $ ssh-keygen -l -f ssh_host_dsa_key.pub $ 1024 97:46:de:e0:a1:71:76:6f:b6:e8:f1:40:2a:63:bc:18 ssh_host_dsa_key.pub 2. the fingerprints are generated from the secret keys, not from the public keys. No, they are generated from the public keys. As