Multiple signatures

Boris koushkov at
Fri Jun 18 15:14:40 CEST 2010

Ok, Thanks David,

But what if the file is signed by people working on different computers?
So they will had their signature on the current separate file
(correesponding to the people who already signed a specific file).


2010/6/18 David Shaw <dshaw at>

> On Jun 17, 2010, at 11:33 PM, Boris wrote:
> > Hi,
> >
> > I would like to know if there is a way to add multiple signatures for a
> file (in a separate file) and check who signed with just one command (so not
> by signing a signed file...).
> Sure.
>   gpg -u signer_1 -u signer_2 -u signer_3 --detach-sign file-to-sign
> You'll end up with a file-to-sign.sig that contains all three signatures.
>  When you verify file-to-sign.sig, all three signatures will be checked.
> Alternately, you can do the same "multiple signer" trick with regular
> --sign if you want the data and signatures to be put together into a single
> file.
> David
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