From owner-FreeBSD-users-jp@jp.FreeBSD.org Wed Jun 19 19:59:18 2002
Received: (from daemon@localhost)
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) id g5JAxIG57926;
	Wed, 19 Jun 2002 19:59:18 +0900 (JST)
	(envelope-from owner-FreeBSD-users-jp@jp.FreeBSD.org)
Received: from sraigw.sra.co.jp (sraigw.sra.co.jp [202.32.10.2])
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) with ESMTP/inet id g5JAxHc57919
	for <freebsd-users-jp@jp.freebsd.org>; Wed, 19 Jun 2002 19:59:17 +0900 (JST)
	(envelope-from oishi@sra.co.jp)
Received: from srascb.sra.co.jp (srascb [133.137.8.65])
	by sraigw.sra.co.jp (8.9.3/3.7W-sraigw) with ESMTP id TAA23396
	for <freebsd-users-jp@jp.freebsd.org>; Wed, 19 Jun 2002 19:59:17 +0900 (JST)
Received: (from root@localhost)
	by srascb.sra.co.jp (8.11.6/8.11.6) id g5JAx3F27194
	for freebsd-users-jp@jp.freebsd.org; Wed, 19 Jun 2002 19:59:03 +0900 (JST)
	(envelope-from oishi@sra.co.jp)
Received: from sranhc.sra.co.jp (sranhc [133.137.160.16])
	by srascb.sra.co.jp (8.11.6/8.11.6av) with ESMTP id g5JAx2V27186
	for <FreeBSD-users-jp@jp.FreeBSD.org>; Wed, 19 Jun 2002 19:59:02 +0900 (JST)
	(envelope-from oishi@sra.co.jp)
Received: from localhost (dhcp-173-118 [133.137.173.118])
	by sranhc.sra.co.jp (8.8.7/3.6Wbeta7-srambox) with ESMTP id TAA15154
	for <FreeBSD-users-jp@jp.FreeBSD.org>; Wed, 19 Jun 2002 19:59:16 +0900 (JST)
Date: Wed, 19 Jun 2002 19:59:08 +0900 (JST)
Message-Id: <20020619.195908.71080343.oishi@sra.co.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
From: OISHI Masakuni <oishi@sra.co.jp>
In-Reply-To: <200206190441.NAA24799@pon.nintendo.co.jp>
References: <20020619022158.GB11819%ginga-freebsd@ginganet.org>
	<200206190441.NAA24799@pon.nintendo.co.jp>
X-Mailer: Mew version 2.2 on Emacs 21.2 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Transfer-Encoding: 7bit
Reply-To: FreeBSD-users-jp@jp.FreeBSD.org
Precedence: list
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+020611
X-Sequence: FreeBSD-users-jp 69433
Subject: [FreeBSD-users-jp 69433] Re: [info] Updated FreeBSD QandA
Errors-To: owner-FreeBSD-users-jp@jp.FreeBSD.org
Sender: owner-FreeBSD-users-jp@jp.FreeBSD.org
X-Originator: oishi@sra.co.jp

$BBg@P$G$9!#(B

# $B;d$bAG?M$G$9$,!D!D(B

From: Takashi SHIRAI <shirai@nintendo.co.jp>
Subject: [FreeBSD-users-jp 69420] Re: [info] Updated FreeBSD QandA
Date: Wed, 19 Jun 2002 13:41:19 +0900
> $B!!$7$i$$$G$9!#(B

> $B!!<B:]$N(B QandA $B$NJ8LL$G$O0J2<$N$h$&$J$3$H$,=q$$$F$"$k$H$$$$(B
> $B$s$8$c$J$$$G$7$g$&$+!#$=$l$r(B TPO $B$K1~$8$FA*$S$J$5$$$H$$$&$3(B
> $B$H$G$$$$$H;W$$$^$9!#(B
> 	1.rand() $B$h$j(B random() $B$NJ}$,$h$jNI$$!#(B
> 	2.random() $B$h$j(B rand48() $B$NJ}$,>0NI$$!#(B
> 	3.rand()/random()/rand48() $B$N7k2L$O7Q>5@-$d<~4|@-$,(B
> 	  $B$"$k$N$G!"$=$l$,5$$K$J$k>l9g$O2C9)$7$FMQ$$$k!#(B
> 	4.arc4random() $B$r;H$&$H:F2C9)L5$7$G$bIJ<A$NNI$$Mp?t(B
> 	  $B$,F@$i$l$k!#(B
> $B!!2?$NA0Ds>r7o$bL5$/!V(Brand() $B$h$j(B random() $B$r;H$(!W$@$1$G$O(B
> $BMpK=2a$.$k$7!"$=$NDxEY$N$3$H$J$i$o$6$o$6(B QandA $B$K=q$/$^$G$b(B
> $B$J$$$H;W$$$^$9!#(B

$B>/$J$/$H$b!"7W;;5!%7%_%e%l!<%7%g%sMQ$NMp?t$H(B
$B0E9fMQ$NMp?t$O6hJL$7$F9M$($k$Y$-$G$7$g$&!#(B

$B7W;;5!%7%_%e%l!<%7%g%s$G$O!"D9$$<~4|$d0lMMJ,I[@-$NB>$K$b!"(B
$BBgNL$NMp?tNs$r9bB.$KF@$i$l$k$3$H$dF10l$N=i4|CM$+$i(B
$BF1$8Mp?tNs$r7+$jJV$7F@$i$l$k$3$H(B($B:F8=@-(B)$B$J$I$,=EMW$K$J$C$F$-$^$9!#(B

$B0lJ}!"0E9f$KMQ$$$kMp?t$G:G$b=EMW$J$N$O!"2a5n$K=PNO$5$l$?Mp?tNs$+$i(B
$B<!$K=PNO$5$l$kMp?t$rM=B,$9$k$3$H$,;v<B>eIT2DG=$G$"$k$3$H$G$9!#(B
$B$3$N>r7o$rK~$?$9$?$a$K!"(Barc4random()$B$J$I$G8+$i$l$k$h$&$J(B
hash$B4X?t$rMQ$$$?<BAu$,$h$/;H$o$l$F$$$^$9!#(B

$B$^$?!"DL>o$NMp?tH/@84o$G$O!"M-8B$NFbIt>uBV$+$i7hDjE*$K(B
$B<!$NFbIt>uBV$H=PNOMp?t$,7h$^$k$?$a!"D9$$Mp?tNs$r=PNO$7$?$H$-$K(B
$B$I$&$7$F$bFbIt>uBV$r?dB,$5$l$k62$l$,=P$F$-$^$9!#(B
$B$=$3$G!"(B/dev/random$B$N$h$&$K3d$j9~$_$J$I$N>pJs$r(B
entropy pool$B$H$7$FCy$a$F$*$/$3$H$G!"Hs7hDjE*$KFbIt>uBV$,(B
$B99?7$5$l$F$$$k$h$&$K$_$($kMp?tH/@84o$b$"$j$^$9!#(B
$B$=$N$?$a!"(B/dev/random$B$O0E9fMQ$H$7$F$OHs>o$K<A$N$h$$(B
$BMp?tNs$r=PNO$7$^$9$,!":F8=@-$r;}$?$J$$$?$a(B
$B7W;;5!%7%_%e%l!<%7%g%sMQ$NMp?t$H$7$F$OITE,@Z$G$9!#(B

$B8DJL$N>r7o$K$b$h$j$^$9$,!"0E9fMQ$J$i(B/dev/{random,urandom}$B$,!"(B
$B7W;;5!%7%_%e%l!<%7%g%sMQ$J$i(BMersenne Twister
http://www.math.keio.ac.jp/matumoto/mt.html
$B$,$*4+$a$J$N$G$O$J$$$+$H;d$O;W$$$^$9!#(B

---
$BBg@P>-K.(B
oishi@sra.co.jp
