Question about: "gpg: WARNING: message was not integrity protected"

Zuxy zuxy.meng at
Tue Oct 19 15:50:07 CEST 2004

Yes you encrypted the file but symmetrically, i.e. you didn't encrypt
the file to someone's public key but to a passphrase. I don't if MDC
takes effect in such case.

And I don't know what that small security glitch was, either. Did that
allow bad men to alter encrypted packets without decrypting them?

On Tue, 19 Oct 2004 13:33:04 +0200, Scholz Ulrich
<scholz at> wrote:
> Hi everybody.  I'm using gnupg 1.2.2.
> When I encode a file with
>    gpg -c -s <file>
> and decode it with
>    gpg --decode <file>.gpg
> I get the message:
>    gpg: WARNING: message was not integrity protected

Beauty is truth,
While truth is beauty.
PGP KeyID: E8555ED6

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