On Sep 10, 2008, at 4:15 PM, Jack Kaye wrote:

Greetings all,

I have what is probably a very basic question but for some reason I
can't seem
to find the answer anywhere online and was hoping one of you GnuPG
boffins could
assist here.

I am trying to digitally sign a file as I encrypt it.

The encryption part is easy:

gpg -r <their key> -e <file>

Signing it is also easy:

gpg -r <their key> -se <file>

But when I sign it this way, it just seems to take the first key in my
keyring.
I have generated different public keys to send to different people and
would like
to sign the encrypted file with a key of my choice. Is that possible or
am I just
not understanding the process of creating a digital signature?

gpg -u <your key you want to sign with> -r <their key> -se <file>

It's the -u flag.

David

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