Can GPG decrypt a signed message and preserve the signature?
Werner Koch
wk@gnupg.org
Tue Feb 26 08:59:01 2002
On Mon, 25 Feb 2002 17:59:18 -0500 (EST), ddcc said:
> I cannot seem to figure out how to decrypt a signed and encrypted message
> in such a way that the signature stays attached. I would need such a
> feature to prove to a third party that the sender actually signed a
The suggested way to do this is by using PGP/MIME in the regular mode;
i.e. encapsulating the message in a multipart/signed MIME object and
then wrapping this with a multipart/encrypted MIME object. Better
MUAs do just this thing.
IIRC, there is no instant way to do this with gpg. Well, we could add
such an option of course but I can't promise you that this will happen
any time soon.
Werner
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