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 10.36.53.14 with SMTP id k14mr665848ita.14.1518131194207; Thu, 08 Feb 2018 15:06:34 -0800 (PST) X-Received: by 10.157.112.141 with SMTP id l13mr43894otj.1.1518131194123; Thu, 08 Feb 2018 15:06:34 -0800 (PST) Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!border1.nntp.ams1.giganews.com!nntp.giganews.com!peer01.ams1!peer.ams1.xlned.com!news.xlned.com!peer01.am4!peer.am4.highwinds-media.com!peer03.iad!feed-me.highwinds-media.com!news.highwinds-media.com!o66no927889ita.0!news-out.google.com!k194ni3125itb.0!nntp.google.com!w142no926162ita.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Thu, 8 Feb 2018 15:06:33 -0800 (PST) In-Reply-To: <3e52618c-09aa-4243-97a8-4f5d5dae4c1e@googlegroups.com> Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=2601:191:8303:2100:4c38:5a3b:cb75:ca75; posting-account=fdRd8woAAADTIlxCu9FgvDrUK4wPzvy3 NNTP-Posting-Host: 2601:191:8303:2100:4c38:5a3b:cb75:ca75 References: <87y3ki743m.fsf@jacob-sparre.dk> <40142b86-fdcf-49d3-bee7-2fdbb04c6db0@googlegroups.com> <8c806572-009d-4ba2-a20d-de1209e45ca6@googlegroups.com> <896717f8-74d0-414b-a0e5-b8eb87561776@googlegroups.com> <3e52618c-09aa-4243-97a8-4f5d5dae4c1e@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: Subject: Re: Card game deck but with trumps suit for tarot "divination" Is there a better way... From: Robert Eachus Injection-Date: Thu, 08 Feb 2018 23:06:34 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Received-Body-CRC: 373536283 X-Received-Bytes: 2667 Xref: reader02.eternal-september.org comp.lang.ada:50331 Date: 2018-02-08T15:06:33-08:00 List-Id: On Wednesday, February 7, 2018 at 4:10:05 PM UTC-5, Bojan Bozovic wrote: > True, but I was looking for Ada solution... Unfortunately you need a hardware solution to the problem of choosing seeds= . Ada does provide for a clock-based solution if the system has a clock. I= n theory Linux has a decent RNG built-in. But if you are building a single= purpose device that needs random bits, Linux becomes too predictable to us= e as a randomness source. Better solutions include timing keystrokes, reverse biased PN junctions, an= d lava lamps.* If you really need a hardware RNG for a system that is not = connected to the network, you can use a radio tuned to a frequency with no = stations, or a zener diode. I recommend: http://ubld.it/truerng_v3 * No kidding there is a lava lamp array on-line for generating seeds: https= ://www.youtube.com/watch?v=3D1cUUfMeOijg