From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 10.50.43.228 with SMTP id z4mr55273774igl.4.1417506720545; Mon, 01 Dec 2014 23:52:00 -0800 (PST) X-Received: by 10.140.98.72 with SMTP id n66mr4877qge.29.1417506720514; Mon, 01 Dec 2014 23:52:00 -0800 (PST) Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!feeder.eternal-september.org!usenet.blueworldhosting.com!feeder01.blueworldhosting.com!peer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!h15no11795892igd.0!news-out.google.com!m4ni588qag.1!nntp.google.com!s7no3529556qap.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Mon, 1 Dec 2014 23:52:00 -0800 (PST) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=2001:470:9174:1:903e:e4d3:ddc9:dd1d; posting-account=r0RePAgAAABkc8iAou09Mtfbf-fnKQql NNTP-Posting-Host: 2001:470:9174:1:903e:e4d3:ddc9:dd1d References: <8f7e0b44-14a7-4e39-8910-d8f6e553b904@googlegroups.com> <2a3a193b-9ae3-421e-8017-972b926c5489@googlegroups.com> <216acc31-ae0f-48cd-bccb-2dd93d88791e@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <04c90919-c853-4e2a-9e45-28e562dbed16@googlegroups.com> Subject: Re: A matter of interest. From: mrvmurray@gmail.com Injection-Date: Tue, 02 Dec 2014 07:52:00 +0000 Content-Type: text/plain; charset=ISO-8859-1 X-Received-Bytes: 2242 X-Received-Body-CRC: 4254417150 Xref: news.eternal-september.org comp.lang.ada:23824 Date: 2014-12-01T23:52:00-08:00 List-Id: On Tuesday, 2 December 2014 02:24:54 UTC, David Botton wrote: > Austin, > > Have you considered creating a contest to break your encryption? > Enough prize money and you can get an entire convention of hackers > to validate your ideas. He did , and lost. In typical form, he did not recognise this. The cipher as stated is brute-forceable in seconds, but the contest as conducted by O'Byrne was flawed. In short, he cheated, and created a ciphergram that his "Bob" could not read using the agreed settings. However, his cipher creates output that heavily leaks the parameters that he was changing, so obtaining these are not hard work, just an irritant. M