Question about history of hash and cipher collections
Robert J. Hansen
rjh at sixdemonbag.org
Mon Jan 14 23:40:49 CET 2008
Jorgen Christiansen Lysdal wrote:
> Which leads me to a question. Since I don't like that gpg falls back to
> 3DES, if a cipher cannot be agreed opon. Would it be possible to change
> it to AES256 or something, in a relative easy way? Maybe a small change
> to source, and building myself? (BTW, thanks for gpg4win making it easy)
What's wrong with 3DES? It's ridiculously slow, of course, but even
after all these years it's still sturdy as a Soviet workers' housing bloc.
Anyway, to answer your question... not in a way which will interoperate
well. According to 2440, 3DES is the only MUST symmetric algorithm,
which means it will be supported by all clients.
If you're willing to take the interoperability hit, I would suggest
looking into g10/pkclist.c line 1263, "select_algo_from_prefs". That
appears to be the best place to hack in what you have in mind.
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