[lug] gpg question
Neal McBurnett
neal at bcn.boulder.co.us
Sat Jan 19 13:49:51 MST 2002
tmp:919)gpg --help | more
...
-s, --sign [file] make a signature
--clearsign [file] make a clear text signature
-b, --detach-sign make a detached signature
-e, --encrypt encrypt data
-c, --symmetric encryption only with symmetric cipher
So you want "-ba" rather than "-sa". "-s" puts the whole thing in one
base64-encoded file, as you would see if you did "gpg -o /tmp/q
foo.txt.asc" on the one our created.
Neal McBurnett <neal at bcn.boulder.co.us>
http://bcn.boulder.co.us/~neal/
GPG/PGP signed and/or sealed mail encouraged. Keyid: 2C9EBA60
On Fri, Jan 18, 2002 at 03:03:55PM -0700, Scott A. Herod wrote:
> Hello,
>
> I'm trying to figure out gnupg finally and was curious about signing
> files. Is there a way to generate an external signature file which
> verifies some file? In particular, I create a file foo.txt which I
> want to sign. I wish to send the file foo.txt and the signature file,
> presumably foo.txt.asc, so that the recipient can verify that yes,
> I sent them the files and furthermore the foo.txt they received is
> the one I sent.
>
> "gpg -sa foo.txt" appears to generate the signature file but
> "gpg --verify foo.txt.asc foo.txt" errors and
> "gpg --verify foo.txt.asc" says ok regardless of whether I edit
> foo.txt after creating the .asc file.
>
> What is the correct way to do this?
>
> Thanks
>
> Scott
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