Sure it shows me the fingerprint, but it doesn't tell me for sure if that's the
RIGHT fingerprint or the fingerprint of an imposter,
It's entirely possible that both myself and that site are BOTH falling victim
to a MITM attack.(routing attacks, DNS attacks, etc)
Proper host key verification (which nobody does) ideally means one or more of:
* Verification that the SSH host key is connected via certificate chain to a
trusted certificate,
* Comparison to a fingerprint being posted on the organization's OWN https site
* Comparison to a fingerprint provided with a GPG or S/MIME signature from the
administrator of the machine.
* Voice verification of the host public key or its fingerprint with the
administrator of the machine.
* Obtaining a printed copy of the host public key or its fingerprint directly
from the administrator.
Although this might be marginally better than trust on first contact (TOFC),
the danger of a false sense of security likely outweigh any potential security
gains over TOFC, particularly when more robust alternatives (MonkeySphere,
signed host keys, use of an organization's own HTTPS site) exist and are
clearly superior.
On Mon, Sep 1, 2014 at 12:41 AM, John Leo <johnleo@xxxxxxxxxxxx
<mailto:johnleo@xxxxxxxxxxxx>> wrote:
This tool displays SSH host key fingerprint - through HTTPS.
SSH is about security; host key matters a lot here; and you can know for
sure by using this tool. It means you know precisely how to answer this
question:
The authenticity of host 'blah.blah.blah (10.10.10.10)' can't be
established.
RSA key fingerprint is
a4:d9:a4:d9:a4:d9a4:d9:a4:__d9a4:d9a4:d9a4:d9a4:d9a4:d9.
Are you sure you want to continue connecting (yes/no)?
https://checkssh.com/
We hackers don't want to get hacked. :-) SSH rocks - when host key is
right. Enjoy!
Best Wishes,
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