Is it possible to decide what is a gpg file?

[makrober]

Melikamp T. Medley wrote:
> Thanks for your answers, David, Timo.
> 
> A somewhat related question: is there a tool that is designed
> to produce "undetectable" encryption, i.e. something that is
> very plausibly random? I gather from your answers that gpg does
> not do that.
check out "Burp":
hyyp://www.geodyssey.com/cryptography
and read this:
http://www.geodyssey.com/cryptography/burp.txt
MacRober