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Message-ID: <3804B764.6FB8@earthlink.net> Date: Wed, 13 Oct 1999 12:46:28 -0400 From: Greg Reynolds <gregreynolds@earthlink.net> Reply-To: gregreynolds@earthlink.net MIME-Version: 1.0 To: staym@accessdata.com Cc: John Gilmore <gnu@toad.com>, cryptography@c2.net Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Might be better off having another crack at the Beale Cipher instead: http://www.und.nodak.edu/org/crypto/crypto/resources.html Regards, Greg Reynolds Compucom staym@accessdata.com wrote: > > I wrote the author of the challenge. He responded (quoted with > permission) > > <quote> > > If you had received my previous email, with accompnaying URL (below), > you would know how I encrypted this message and have my source code. > > > Will you provide source to the encryption code? > > Yes. See: > > http://www.well.com/user/abs/Crypto/ > > > Avoid software which uses secret algorithms. This is not considered a > > safe means of protecting data. If the vendor isn't confident that its > > encryption method can withstand scrutiny, then you should be wary of > > trusting it. > > I couldn't agree more. That's why I'm inviting attack. > > 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. > </quote> > > -- > Mike Stay > Programmer / Crypto guy > AccessData Corp. > mailto:staym@accessdata.com
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