[5886] in cryptography@c2.net mail archive
Re: "unbreakable code?" with cash prizes
daemon@ATHENA.MIT.EDU (Eugene Leitl)
Tue Oct 12 19:59:09 1999
From: Eugene Leitl <eugene.leitl@lrz.uni-muenchen.de>
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Message-ID: <14339.45807.950902.938933@lrz.uni-muenchen.de>
Date: Tue, 12 Oct 1999 15:15:11 -0700 (PDT)
To: staym@accessdata.com
Cc: John Gilmore <gnu@toad.com>, cryptography@c2.net
In-Reply-To: <3803A7FE.1777@accessdata.com>
staym@accessdata.com writes:
> I wrote the author of the challenge. He responded (quoted with
> permission):
> (((To be clear, the contents of message2.bin were created by xor-ing my
> English plain text with a chunk of a jpg file which is NOT on the web.
> It is a picture I took myself and scanned. I am interested to see if
> anyone can use statistical techniques or special knowledge of jpg's to
> crack this without the key.)))
One time pads are supposed to be random. If they are not, they are not
one time pads.
Ignore this fool and his challenge.