Date: 10 Mar 2001 14:25:45 +0100 From: Dag-Erling Smorgrav <des@ofug.org> To: Mark Murray <markm@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/random randomdev.h harvest.c hash.c hash.h randomdev.c yarrow.c yarrow.h Message-ID: <xzpr905u55y.fsf@flood.ping.uio.no> In-Reply-To: Mark Murray's message of "Sat, 10 Mar 2001 04:51:57 -0800 (PST)" References: <200103101251.f2ACpv610133@freefall.freebsd.org>
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Mark Murray <markm@FreeBSD.org> writes: > o Bug fixes. The streamlining of the crypto stuff enabled me to > find and fix some bugs. DES also found a bug in the reseed routine > which is fixed. That bug essentially made the reseed routine useless, as the entropy harvested from interrupts etc. was never hashed into random_state. The only entropy you ever got was 32 bytes of whatever was on the stack when reseed() was called. > o Change the way reseeds clear "used" entropy. Previously, only the > source(s) that caused a reseed were cleared. Now all sources in the > relevant pool(s) are cleared. Clarification: what is now getting cleared (and didn't use to) are the entropy estimates for the various entropy sources. Since all sources in a given time bin feed their entropy into the same pool, once that pool has been hashed into random_state the total entropy estimate for that pool should be reset to zero DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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