GnuPG is broken when used as filter :-((

[Khimenko Victor]

On Sun, 15 Aug 1999 zander at microweb.nl wrote:

> 
> 
> gpg -aes xmms-icons.tar.gz
> gpg -o- -aes xmms-icons.tar.gz 2>/dev/null >file2
> 
> diff xmms-icons.tar.gz.asc file2
> 
> whole lot of differences..
> 
Please, please, PLEASE try to find some information about PGP/GPG
internals before doing such stupid test! You should NOT get identical
files! This is true for PGP and it's true for GPG as well... Two
invocations of PGP/GPG (even with the same options!) MUST do different
results. Even more: if you DO NOT get different result you are in danger!
Very hard, real danger! It's not a bug... It's a feature...

> 
> ls -al
> 
> 
> -rw-r--r--   1 zander   users      122570 Aug 15 17:25 file2
> -rw-r--r--   1 zander   users      122570 Aug 15 17:27 xmms-icons.tar.gz.asc
> 
> same size.
> 
> My conclusion would be that this is ready for a bug report.
> 
Not at all. It's just normal expected PGP/GPG behaviour. But AFTER
decryption you should get identical results in both cases. And it's not so
here. This is bug.