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	<199711200756.QAA19238@nocs3.noc.titech.ac.jp>
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Date: Thu, 20 Nov 1997 17:36:29 +0900
From: Makoto MATSUSHITA (=?ISO-2022-JP?B?GyRCJF4kRCQ3JD8kXiQzJEgbKEI=?=) <matusita@ics.es.osaka-u.ac.jp>
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Subject: [FreeBSD-users-jp 21025] Re: [INFO] RC5-64 crack
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$B$h$/$o$+$C$F$J$$$N$G$$$$2C8:$J$3$H$r$+$/$N$G$9$,!E!E(B

aki>   $B0E9fGK$j$N%3%s%F%9%H$G$9!#0E9f(BRC5$B$r=jM-$7$F$$$k(B RSA Data
aki>   Security$B<R$,!"0E9f$N6/$5$r3N$+$a$k$?$a$K3+:E$7$^$7$?!#(B 

$B$=$l$O(B <URL:http://www.rsa.com/rsalabs/97challenge/> $BNc$($P$3$C$A$G$O(B ^_^;

***

$B$G!$(B<URL:http://www.rsa.com/rsalabs/97challenge/secret-key.htm> $B$K=P$F(B
$B$$$k$d$D$N$&$A!$(BRC5-32/12/8 $B$J$d$D(B (64bit key) $B$K$D$$$F!V$3$s$J$b$s!$(B
$B$_$s$J$,$F$s$G$P$i$P$i$K$d$C$?$C$FEXNO$NL5BL$J$N$G6(NO$7$F$d$m$&$<!W$H(B
$B$$$&$N$,(B

aki> 	see http://www.distributed.net/rc5/

$B$8$c$J$$$+$H;W$o$l$^$9(B($B2a5n$K(B 56bit $B$J$d$D$G<B:]$KF1$8$3$H$r$d$C$F!$<B(B
$B:]$K2r$$$?$_$?$$$G$9$M(B)$B!%(B

$B$G!$$?$@C1$K!V$5$"$d$m$&!W$J$s$F$N$O$=$l$O$=$l$GL5Cc$J$N$G!$7W;;$9$k$?(B
$B$a$N(B program $B$r=q$$$F!$$_$s$J$G$=$l$J$j$K$&$^$/<B9T$G$-$k$h$&$K(B key $B$r(B
$BJ,G[$7$F$+$D7W;;7k2L$r$,$,$C$H=87W$9$k;EAH$rAH$s$G!E!E$r>e5-(B Project(?)
$B$G$O$d$C$F$$$k$N$@$H(B($B$3$NJ8>O$rFI$s$G(B)$B;W$C$F$?$N$G$9$,!$$b$C$H>\$7$/$4(B
$BB8CN$NJ}$O$$$i$C$7$c$i$J$$$G$7$g$&$+(B?

-- -
Makoto `MAR' MATSUSHITA
