Date: Mon, 21 Jul 2008 21:57:30 +0000 (UTC) From: "Andrey A. Chernov" <ache@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/lib/libc/gen arc4random.c Message-ID: <200807212157.m6LLviBJ095778@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
ache 2008-07-21 21:57:30 UTC
FreeBSD src repository
Modified files:
lib/libc/gen arc4random.c
Log:
SVN rev 180676 on 2008-07-21 21:57:30Z by ache
1) Use __packed attr on rdat structure to make it exact 128 bytes.
2) Use gettimeofday() and getpid() only if reading from /dev/urandom
fails or impossible.
3) Discard N bytes on very first initialization only (i.e. don't
discard on re-stir).
4) Reduce N from 1024 to 512 as really suggested in the
"(Not So) Random Shuffles of RC4" paper:
http://research.microsoft.com/users/mironov/papers/rc4full.pdf
Revision Changes Path
1.17 +17 -10 src/lib/libc/gen/arc4random.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200807212157.m6LLviBJ095778>