Date: Wed, 25 Oct 2000 17:15:58 -0400 (EDT) From: Wesley Morgan <morganw@chemicals.tacorp.com> To: Mark Murray <mark@grondar.za> Cc: =?koi8-r?B?4c7E0sXKIP7F0s7P1w==?= <ache@nagual.pp.ru>, current@FreeBSD.ORG Subject: Re: entropy reseeding is totally broken Message-ID: <Pine.BSF.4.21.0010251710270.3162-100000@volatile.chemicals.tacorp.com> In-Reply-To: <200010251737.e9PHbWR08465@grimreaper.grondar.za>
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I'm not knocking anyone or any code, especially considering this IS -current... BUT... I don't need to read the code to know that I am seeing the same fortunes on first login after reboot more often than I can attribute to random chance. Maybe nanotime is being harvested, but it seems that there is a time lag between system startup and reaching a state of "true pseudo-entropy". Also, every reboot has entropy caching failing to work. I don't know if this is a product of the broken reseeding or what, because the /etc/rc files seem to be fine. On Wed, 25 Oct 2000, Mark Murray wrote: > > 2) Reseeding state may not preserve across the boot due to various reasons > > like panic, etc. Since _time_ is ignored, all other data /etc/rc tries to > > collect now can be non-random _easily_! > > > > Unless _time_ will be used, /dev/random is plain unusable for production > > usage. > > Andrey, read the code; nanotime is all over the harvested entropy. > > M > -- > Mark Murray > Join the anti-SPAM movement: http://www.cauce.org > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > -- _ __ ___ ____ ___ ___ ___ Wesley N Morgan _ __ ___ | _ ) __| \ morganw@chemicals.tacorp.com _ __ | _ \._ \ |) | FreeBSD: The Power To Serve _ |___/___/___/ 6bone: 3ffe:1ce3:7::b4ff:fe53:c297 Hi! I'm a .signature virus! Copy me into your ~/.signature to help me spread! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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