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Date: Mon, 29 Mar 1999 20:14:25 +0900
From: Masahiro Sekiguchi <seki@ma.neweb.ne.jp>
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# $B$9$4!<$/=PCY$l$F$F$4$a$s$J$5$$!#(B

> vanitas> $B!&(B50(98):
> vanitas>    hashing MD5 with a counter and an undisclosed secret
> vanitas>    $B!X%+%&%s%?$H$P$l$F$$$J$$HkL)$N(B MD5 $B%O%C%7%s%0!Y(B

$B"*(B $B%+%&%s%?$HHs8x3+$NHkL)>pJs$H$r(B MD5 $B$G%O%C%7%e$7$?$b$N(B

$B$H$+$G$O$$$+$,$G$7$g$&$+!#(B

> vanitas>    $BC1$J$k5?Ld$J$s$G$9$,!"$3$3$N(B undisclosed secret $B$C$F(B
> vanitas>    $B6qBNE*$K$O2?$N$3$H$J$s$G$7$g$&!D!)(B
> vanitas>    MD5 $B$NHkL)80$+2?$+$N$3$H$G$7$g$&$+!)(B

$B$$$$$(!#(B

$B$3$N(B secret $B$O0E9f20$5$s$N;H$&=R8l$G!"Bh;0<T$,CN$i$J$$!"2?$+HkL)$N>p(B
$BJs!"$H$$$&DxEY$N0UL#$G$9!#0E9f$N!VHkL)80!W$N$h$&$J$b$N$O3N$+$K(B secret
$B$NNc$G$9$,!"$b$C$HMp?t$N$h$&$J!VFC$K0UL#$N$J$$!W$b$N!"$H$$$&%K%e%"%s(B
$B$,6/$$$H;W$$$^$9!#(B

$B!V$3$3$N(B undisclosed secret$B!W$H$$$&$N$O!V%(%s%H%m%T!<%W!<%k$NFbMF$NOB!W(B
$B$G$9!#$D$^$j!"%(%s%H%m%T!<$,ITB-$7$?>l9g$K$O!"!VHs8x3+$@$,C1$J$kDj?t$G(B
$B$"$k$h$&$JCM!W$H%+%&%s%?$H$N(B MD5 $B$K$J$C$F$7$^$&$N$@!"$H$$$&$3$H$r8@$C(B
$B$F$^$9!#(B 

secret $B$H$$$&8l$NK]Lu$G$9$,!"<j85$K652J=q$,$J$$$N$G!"?H6a$J?M$,=q$$$?(B
$B%a%b$r$A$i$A$i8+$?$H$3$m!"HkL)!"%7!<%/%l%C%H!"HkL)>pJs!"HkL)CM!"$J$I(B
$B$,MQ$$$i$l$F$$$k$h$&$G$7$?!#HkL)>pJs$H$$$&8l$,!"$3$NCf$G!"0E9fM}O@$K(B
$B>\$7$/$J$$?M$K$H$C$F!"$b$C$H$b0cOB46$,$J$$$+$J!"$H;W$C$?$N$G!"A0=R$N(B
$BLu$rDs0F$7$^$7$?!#(B

