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Re: [openpgp] Fingerprint requirements for OpenPGP

Vincent Breitmoser <look@my.amazin.horse> Tue, 12 April 2016 13:15 UTC

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Date: Tue, 12 Apr 2016 15:15:45 +0200
From: Vincent Breitmoser <look@my.amazin.horse>
To: Joseph Lorenzo Hall <joe@cdt.org>
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Subject: Re: [openpgp] Fingerprint requirements for OpenPGP
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Joseph Lorenzo Hall(joe@cdt.org)@Tue, Apr 12, 2016 at 09:06:11AM -0400:
> If you have two keys that map to the same fingerprint, then an
> attacker can decide to serve you whichever is in their best interest.

The premise of your scenario is that you are already using a key
generated by the attacker. What could an attacker possibly gain by
possessing a second key with the same fingerprint?

 - V

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