[openpgp] Re: multi-key collisions in OpenPGP

Daniel Huigens <[email protected]> Fri, 14 Nov 2025 17:34:35 +0000

Newsgroups	gmane.ietf.openpgp
Message-ID	<48Dxmn1Tukue-KxQypSOtPb7DgrgR6kYSBSftLg81yUhUKtXWj7qMdLTy-eIFftpFG2VKI9VjOh4KlaBdyfq898Nim-50uqBWC3ZCMEF2Lk=@protonmail.com>

On Friday, November 14th, 2025 at 18:00, Daniel Huigens wrote:

> Separately: I looked at the sage code for a multi-key collision against
> GCM, and it seems to assume that both messages have the same nonce.
> I tried to adapt it to use different nonces, but it didn't work;
> but maybe I missed something. Do you know if this is required for
> the attack to work?

Never mind, I did get the code to work, so ignore the second half
of my message :)

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