{"id":617,"date":"2006-07-13T00:58:23","date_gmt":"2006-07-12T22:58:23","guid":{"rendered":"http:\/\/www.rare-it.com\/blog\/index.php\/2006\/07\/13\/rc5-72\/"},"modified":"2006-07-13T00:58:23","modified_gmt":"2006-07-12T22:58:23","slug":"rc5-72","status":"publish","type":"post","link":"https:\/\/www.switchbl8.nl\/blog\/2006\/07\/rc5-72\/","title":{"rendered":"RC5-72"},"content":{"rendered":"<p>I&#8217;m a participant in the <a href=\"http:\/\/stats.distributed.net\/projects.php?project_id=8\">RC5-72<\/a> attempt of <a href=\"http:\/\/www.distributed.net\/\">Distributed.NET<\/a>. For almost 4 years now. With about 72000 participants we came to a staggering 0.336% of the keyspace. Yup. That means with the current keyrate (speed of PC&#8217;s) we still have about 1100 years to go before we exausted the keyspace. If PCs become about 50 times faster than they are now (unlikely, but let&#8217;s assume they will), PC&#8217;s will still be crunching numbers for the next 21.8 years.<\/p>\n<p>The point of the game\/contest is to prove RC5 (we cracked the smaller ones) can be cracked with a brute force attack (just trying every key). I guess it&#8217;s safe to assume that RC5-72 or anything with an even higher number of key-bits can not be broken with brute force without some radical changes in hardware or software-algorithms.<\/p>\n<p>So&#8230;.I&#8217;m stopping my number crunchers: 2 laptops and 2 PC&#8217;s will have a cool CPU again. You can find the stats of <a href=\"http:\/\/stats.distributed.net\/team\/tmember.php?project_id=8&#038;team=1070\">my team here<\/a>.<\/p>\n<p>Moo!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m a participant in the RC5-72 attempt of Distributed.NET. For almost 4 years now. With about 72000 participants we came to a staggering 0.336% of the keyspace. Yup. That means with the current keyrate (speed of PC&#8217;s) we still have about 1100 years to go before we exausted the keyspace. If PCs become about 50 <a href='https:\/\/www.switchbl8.nl\/blog\/2006\/07\/rc5-72\/' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,20],"tags":[],"class_list":["post-617","post","type-post","status-publish","format-standard","hentry","category-internet","category-personal","category-14-id","category-20-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/posts\/617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/comments?post=617"}],"version-history":[{"count":0,"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/posts\/617\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/media?parent=617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/categories?post=617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.switchbl8.nl\/blog\/wp-json\/wp\/v2\/tags?post=617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}