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<manualpage metafile="ssl_intro.xml.meta">
<parentdocument href="./">SSL/TLS</parentdocument>

  <title>SSL/TLS $B0E9f2=(B: $B$O$8$a$K(B</title>

<summary>
<blockquote>
<p>$BI8=`5,3J$NNI$$=j$O!"$?$/$5$s$N5,3J$+$iA*$Y$k$H$$$&$3$H$@!#(B
$B$=$7$F!"$b$7K\Ev$K$I$N5,3J$b5$$KF~$i$J$1$l$P!"(B
$B0lG/BT$D$@$1$GC5$7$F$$$?5,3J$,8=$l$k!#(B</p>

<p class="cite">-- <cite>A. Tanenbaum</cite>, "Introduction to
Computer Networks"</p>
</blockquote>

<p>
$BF~Lg$H$$$&$3$H$G!"$3$N>O$O(B Web$B!"(BHTTP$B!"(BApache $B$KDL$8$F$$$k(B
$BFI<T8~$1$G$9$,!"%;%-%e%j%F%#@lLg2H8~$1$G$O$"$j$^$;$s!#(B
SSL $B%W%m%H%3%k$N7hDjE*$J<j0z$-$G$"$k$D$b$j$O$"$j$^$;$s!#(B
$B$^$?!"AH?%Fb$NG'>Z4IM}$N$?$a$NFCDj$N%F%/%K%C%/$d!"(B
$BFC5v$dM"=P5,@)$J$I$N=EMW$JK!E*$JLdBj$K$D$$$F$b07$$$^$;$s!#(B
$B$`$7$m!"99$J$k8&5f$X$N=PH/E@$H$7$F?'!9$J35G0!"Dj5A!"Nc$rJB$Y$k$3$H$G(B
 mod_ssl $B$N%f!<%6$K4pACCN<1$rDs6!$9$k;v$rL\E*$H$7$F$$$^$9!#(B</p>

<p>$B$3$3$K<($5$l$?FbMF$O<g$K!"86Cx<T$N5v2D$N2<(B
The Open Group Research Institute $B$N(B <a
href="http://home.earthlink.net/~fjhirsch/">Frederick J. Hirsch</a>
 $B;a$N5-;v(B <a
href="http://home.earthlink.net/~fjhirsch/Papers/wwwj/article.html">
Introducing SSL and Certificates using SSLeay</a> $B$r4p$K$7$F$$$^$9!#(B
$B;a$N5-;v$O(B <a
href="http://www.ora.com/catalog/wjsum97/">Web Security: A Matter of
Trust</a>, World Wide Web Journal, Volume 2, Issue 3, Summer 1997
$B$K7G:\$5$l$^$7$?!#(B
$B9NDjE*$J0U8+$O(B <a
href="mailto:hirsch@fjhirsch.com">Frederick Hirsch</a> $B;a(B
 ($B855-;v$NCx<T(B) $B$XA4$F$N6l>p$O(B <a
href="mailto:rse@engelschall.com">Ralf S. Engelschall</a> (
<module>mod_ssl</module> $B$N:n<T(B) $B$X$*4j$$$7$^$9!#(B
[$BLuCm(B: $BLu$K$D$$$F$O(B <a
href="mailto:apache-docs@ml.apache.or.jp">
Apache $B%I%-%e%a%s%HK]Lu%W%m%8%'%/%H(B</a>
$B$X$*4j$$$7$^$9!#(B]</p>
</summary>

<section id="cryptographictech">
<title>$B0E9f2=5;=Q(B</title>
<p>SSL $B$rM}2r$9$k$K$O!"0E9f%"%k%4%j%:%`!"(B
$B%a%C%;!<%8%@%$%8%'%9%H4X?t(B($BJLL>(B: $B0lJ}8~4X?t!"%O%C%7%e4X?t(B)$B!"(B
$BEE;R=pL>$J$I$X$NM}2r$,I,MW$G$9!#(B
$B$3$l$i$N5;=Q$OK\$,4]$4$HI,MW$JBjL\$G(B
($BNc$($P(B [<a href="#AC96">AC96</a>] $B$r;2>H(B)$B!"(B
$B%W%i%$%P%7!<!"?.MQ!"G'>Z$J$I$N5;=Q$N4pAC$H$J$C$F$$$^$9!#(B</p>

<section id="cryptographicalgo">
<title>$B0E9f%"%k%4%j%:%`(B</title>
    <p>$BNc$($P!"%"%j%9$,Aw6b$N$?$a$K6d9T$K%a%C%;!<%8$rAw$j$?$$$H$7$^$9!#(B
    $B8}:BHV9f$dAw6b$N6b3[$,4^$^$l$k$?$a!"(B
    $B%"%j%9$O$=$N%a%C%;!<%8$rHkL)$K$7$?$$$H;W$$$^$9!#(B
    $B2r7hJ}K!$N0l$D$O0E9f%"%k%4%j%:%`$r;H$C$F!"%a%C%;!<%8$r(B
    $BFI$^$;$?$$?M0J30$OFI$`$3$H$,$G$-$J$$0E9f2=$5$l$?(B
    $B7ABV$KJQ$($F$7$^$&$3$H$G$9!#(B
    $B$=$N7ABV$K$J$k$H!"(B
    $B%a%C%;!<%8$OHkL)$N80$K$h$C$F$N$_2r<a$9$k$3$H$,$G$-$^$9!#(B
    $B80$J$7$G$O!"%a%C%;!<%8$OLr$KN)$A$^$;$s!#(B
    $BNI$$0E9f%"%k%4%j%:%`$O!"?/F~<T$,85$N%F%-%9%H$r2rFI$9$k$3$H$r(B
    $BHs>o$KFq$7$/$9$k$?$a!"EXNO$,3d$K9g$o$J$/$5$;$^$9!#(B</p>

    <p>$B0E9f%"%k%4%j%:%`$K$O(B
    $B=>Mh7?$H8x3+80$NFs$D$N<oN`$,$"$j$^$9!#(B</p>

    <dl>
    <dt>$B=>Mh7?0E9f(B</dt>
    <dd>$BBP>N0E9f$H$7$F$bCN$i$l!"(B
    $BAw?.<T$H<u?.<T$,80$r6&M-$9$k$3$H$,I,MW$G$9!#(B
    $B80$H$O!"%a%C%;!<%8$r0E9f2=$7$?$jI|9f$9$k$N$K;H$o$l$kHkL)(B
    $B$N>pJs$N$3$H$G$9!#(B
    $B$b$7!"$3$N80$,HkL)$J$i!"Aw?.<T$H<u?.<T0J30$OC/$b%a%C%;!<%8$rFI(B
    $B$`$3$H$,$G$-$^$;$s!#(B
    $B$b$7$b!"%"%j%9$H6d9T$,HkL)$N80$rCN$C$F$$$k$J$i!"(B
    $BH`$i$O$*8_$$$KHkL)$N%a%C%;!<%8$rAw$k$3$H$,$G$-$k$G$7$g$&!#(B
    $B$?$@$7!";vA0$KFbL)$K80$rA*$V$H$$$&;E;v$OLdBj$r4^$s$G$$$^$9!#(B</dd>

    <dt>$B8x3+800E9f(B</dt>
    <dd>$BHsBP>N0E9f$H$7$F$bCN$i$l!"(B
    $B%a%C%;!<%8$r0E9f2=$9$k$3$H$N$G$-$kFs$D$N80(B
    $B$r;HMQ$9$k%"%k%4%j%:%`$rDj5A$9$k$3$H$G80$N$d$j<h$j$NLdBj$r2r7h(B
    $B$7$^$9!#(B
    $B$b$7!"$"$k80$,0E9f2=$K;H$o$l$?$J$i!"(B
    $B$b$&JRJ}$N80$GI|9f$7$J$1$l$P$$$1$^$;$s!#(B
    $B$3$NJ}<0$K$h$C$F!"0l$D$N80$r8xI=$7$F(B($B8x3+80(B)$B!"(B
    $B$b$&JRJ}$rHkL)$K$7$F$*$/(B($BHkL)80(B)$B$@$1$G!"(B
    $B0BA4$J%a%C%;!<%8$r<u$1<h$k$3$H$,$G$-$^$9!#(B</dd>
    </dl>

    <p>$BC/$b$,0E9f2=$5$l$?%a%C%;!<%8$r8x3+80$K$h$C$F0E9f2=(B
    $B$9$k$3$H$,$G$-$^$9$,!"HkL)80$N;}$A<g$@$1$,$=$l$rFI$`$3$H$,(B
    $B$G$-$^$9!#(B
    $B$3$NJ}K!$G!"6d9T$N8x3+80$r;H$C$F0E9f2=$9$k$3$H$G!"(B
    $B%"%j%9$OHkL)$N%a%C%;!<%8$rAw$k$3$H$,$G$-$^$9!#(B
    $B6d9T$N$_$,I|9f$9$k$3$H$,$G$-$^$9!#(B</p>
</section>

<section id="messagedigests">
<title>$B%a%C%;!<%8%@%$%8%'%9%H(B</title>
    <p>$B%"%j%9$O%a%C%;!<%8$rHkL)$K$9$k$3$H$,$G$-$^$9$,!"(B
    $BC/$+$,Nc$($P<+J,$KAw6b$9$k$h$&$K%a%C%;!<%8$rJQ99$7$?$j!"(B
    $BJL$N$b$N$KCV$-49$($F$7$^$&$+$b$7$l$J$$$H$$$&LdBj$,$"$j$^$9!#(B
    $B%"%j%9$N%a%C%;!<%8$N?.MQ$rJ]>Z$9$kJ}K!$N0l$D$O!"(B
    $B%a%C%;!<%8$N4J7i$J%@%$%8%'%9%H$r:n$C$F!"$=$l$b6d9T$KAw$k$H$$$&$b$N$G$9!#(B
    $B%a%C%;!<%8$r<u$1<h$k$H6d9T$b%@%$%8%'%9%H$r:n@.$7!"(B
    $B%"%j%9$,Aw$C$?$b$N$HHf$Y$^$9!#$b$70lCW$7$?$J$i!"(B
    $B<u$1<h$C$?%a%C%;!<%8$OL5=}$@$H$$$&$3$H$K$J$j$^$9!#(B</p>

    <p>$B$3$N$h$&$JMWLs$O(B<dfn>$B%a%C%;!<%8%@%$%8%'%9%H(B</dfn>$B!"(B
    <em>$B0lJ}9T4X?t(B</em>$B!"$^$?$O(B<em>$B%O%C%7%e4X?t(B</em>$B$H8F$P$l$^$9!#(B
    $B%a%C%;!<%8%@%$%8%'%9%H$OD9$$2DJQD9$N%a%C%;!<%8$+$i(B
    $BC;$$8GDjD9$NI=8=$r:n$k$N$K;H$o$l$^$9!#(B
    $B%@%$%8%'%9%H%"%k%4%j%:%`$O%a%C%;!<%8$+$i(B
    $B0l0U$J%@%$%8%'%9%H$r@8@.$9$k$h$&$K:n$i$l$F$$$^$9!#(B
    $B%a%C%;!<%8%@%$%8%'%9%H$O%@%$%8%'%9%H$+$i85$N%a%C%;!<%8$r(B
    $BH=Dj$9$k$N$,$H$F$bFq$7$$$h$&$K$G$-$F$$$^$9!#(B
    $B$^$?!"F1$8MWLs$r:n@.$9$kFs$D$N%a%C%;!<%8$rC5$9$N$OIT2DG=$G$9!#(B
    $B$h$C$F!"F1$8MWLs$r;H$C$F%a%C%;!<%8$rCV$-49$($k$H$$$&(B
    $B2DG=@-$rGS=|$7$F$$$^$9!#(B</p>

<p>$B%"%j%9$X$N$b$&0l$D$NLdBj$O!"$3$N%@%$%8%'%9%H$r0BA4$KAw$kJ}K!$rC5$9$3$H$G$9!#(B
$B$3$l$,$G$-$l$P!"%a%C%;!<%8$N?.MQ$,J]>Z$5$l$^$9!#(B
$B0l$D$NJ}K!$O$3$N%@%$%8%'%9%H$KEE;R=pL>$r4^$`$3$H$G$9!#(B</p>
</section>

<section id="digitalsignatures"><title>$BEE;R=pL>(B</title>
<p>$B%"%j%9$,6d9T$K%a%C%;!<%8$rAw$C$?$H$-!"6d9T$O!"(B
$B?/F~<T$,H`=w$K$J$j$9$^$7$FH`=w$N8}:B$X$N<h0z$r?=@A$7$F$$$J$$$+!"(B
$B%a%C%;!<%8$,K\Ev$KH`=w$+$i$N$b$N$+3N<B$KJ,$+$i$J$1$l$P$$$1$^$;$s!#(B
$B%"%j%9$K$h$C$F:n@.$5$l!"%a%C%;!<%8$K4^$^$l$?(B
<em>$BEE;R=pL>(B</em>$B$,$3$3$GLr$KN)$A$^$9!#(B</p>

<p>$BEE;R=pL>$O%a%C%;!<%8$N%@%$%8%'%9%H$d$=$NB>$N>pJs(B($B=hM}HV9f$J$I(B)$B$r(B
$BAw?.<T$NHkL)80$G0E9f2=$9$k$3$H$G:n$i$l$^$9!#(B
$BC/$b$,8x3+80$r;H$C$F=pL>$r(B<em>$BI|9f(B</em>$B$9$k$3$H$,$G$-$^$9$,!"(B
$B=pL><T$N$_$,HkL)80$rCN$C$F$$$^$9!#(B
$B$3$l$O!"H`$i$N$_$,=pL>$7$($?$3$H$r0UL#$7$^$9!#(B
$B%@%$%8%'%9%H$rEE;R=pL>$K4^$`$3$H$O!"(B
$B$=$N=pL>$,$=$N%a%C%;!<%8$N$_$KM-8z$G$"$k$3$H$r0UL#$7$^$9!#(B
$B$3$l$O!"C/$b%@%$%8%'%9%H$rJQ$($F=pL>$r$9$k$3$H$,$G$-$J$$$?$a!"(B
$B%a%C%;!<%8$N?.MQ$bJ]>Z$7$^$9!#(B</p>

<p>$B?/F~<T$,=pL>$rK5<u$7$F8eF|$K:FMxMQ$9$k$N$rKI$0$?$a(B
$BEE;R=pL>$K$O0l0U$J=hM}HV9f$,4^$^$l$^$9!#(B
$B$3$l$O!"%"%j%9$,$=$s$J%a%C%;!<%8$OAw$C$F$$$J$$$H8@$&:>5=(B
$B$+$i6d9T$r<i$j$^$9!#(B
$BH`=w$@$1$,=pL>$7$($?$+$i$G$9!#(B($BH]G'KI;_(B)</p>
</section>
</section>
<!-- /cryptographictech -->

<section id="certificates">
<title>$B>ZL@=q(B</title>
<p>$B%"%j%9$OHkL)$N%a%C%;!<%8$r6d9T$KAw$j!"(B
$B=pL>$r$7$F!"%a%C%;!<%8$N?.MQ$rJ]>Z$9$k$3$H$,$G$-$k$*$&$K$J$j$^$7$?$,!"(B
$BDL?.$7$F$$$kAj<j$,K\Ev$K6d9T$J$N$+3N$+$a$J$/$F$O$$$1$^$;$s!#(B
$B$3$l$O!"H`=w$,;H$&8x3+80$,6d9T$NHkL)80$HBP$K$J$C$F$$$k$b$N$+!"(B
$BH`=w$O3N$+$a$J$/$F$O$$$1$J$$$H$$$&$3$H$r0UL#$7$^$9!#(B
$BF1MM$K!"6d9T$O%a%C%;!<%8$N=pL>$,K\Ev$K%"%j%9$N=pL>$+3NG'$9$kI,MW$,(B
$B$"$j$^$9!#(B</p>

<p>$B$b$7N><T$K?H85$r>ZL@$7!"8x3+80$r3NG'$7!"$^$??.Mj$5$l$?5!4X$,=pL>(B
$B$7$?>ZL@=q$,$"$l$P!"N><T$H$bDL?.Aj<j$K$D$$$F@5$7$$Aj<j$@$H(B
$B3N?.$9$k$3$H$,$G$-$^$9!#(B
$B$=$N$h$&$J?.Mj$5$l$?5!4X$O(B<em>$BG'>Z6I(B</em>
 (Certificate Authority $B$^$?$O(B CA) $B$H8F$P$l!"(B
$B>ZL@=q(B (certificate) $B$,G'>Z(B (authentication) $B$K;H$o$l$^$9!#(B</p>

<section id="certificatecontents">
<title>$B>ZL@=q$NFbMF(B</title>
    <p>$B>ZL@=q$O8x3+80$H8D?M!"%5!<%P!"$=$NB>$N<gBN$N<B:_$N?H85$r(B
    $B4XO"IU$1$^$9!#(B
    <a href="#table1">$BI=(B1</a>$B$K<($5$l$k$h$&$K>ZL@BP>]$N>pJs$O(B
    $B?H85>ZL@$N>pJs(B($B<1JLL>(B)$B$H8x3+80$,4^$^$l$^$9!#(B
    $B>ZL@=q$O$^$?!"G'>Z6I$N?H85>ZL@$H=pL>!"$=$7$F>ZL@=q$NM-8z4|4V$r(B
    $B4^$_$^$9!#(B
    $B%7%j%"%k%J%s%P!<$J$I$NG'>Z6I$N4IM}>e$N>pJs$d(B
    $B$=$NB>$NDI2C$N>pJs$,4^$^$l$F$$$k$+$b$7$l$^$;$s!#(B</p>

    <section id="table1">
    <title>$BI=(B1: $B>ZL@=q>pJs(B</title>
    <table>
    <columnspec><column width=".35"/><column width=".35"/>
    </columnspec>
    <tr><th>$B>ZL@BP>](B</th>
        <td>$B<1JLL>!"8x3+80(B</td></tr>
    <tr><th>$BH/9T<T(B</th>
        <td>$B<1JLL>!"8x3+80(B</td></tr>
    <tr><th>$BM-8z4|4V(B</th>
        <td>$B3+;OF|!"<:8zF|(B</td></tr>
    <tr><th>$B4IM}>pJs(B</th>
        <td>$B%P!<%8%g%s!"%7%j%"%k%J%s%P!<(B</td></tr>
    <tr><th>$B3HD%>pJs(B</th>
        <td>$B4pK\E*$J@)Ls!"%M%C%H%9%1!<%W%U%i%C%0!"$=$NB>(B</td></tr>
    </table>
    </section>

    <p>$B<1JLL>(B($B%G%#%9%F%#%s%0%$%C%7%e!&%M!<%`(B)$B$OFCDj$N>u67$K$*$1$k(B
    $B?HJ,>ZL@$rDs6!$9$k$N$K;H$o$l$F$$$^$9!#Nc$($P!"$"$k?M$O(B
    $B;dMQ$H2q<R$H$GJL!9$N?HJ,>ZL@$r;}$D$+$b$7$l$^$;$s!#(B
    
    $B<1JLL>$O(B X.509 $BI8=`5,3J(B [<a
    href="#X509">X509</a>] $B$GDj5A$5$l$F$$$^$9!#(B
    X.509 $BI8=`5,3J$O!"9`L\!"9`L\L>!"$=$7$F9`L\$NN,>N$rDj5A$7$F$$$^$9!#(B(<a href="#table2">$BI=(B
    2</a> $B;2>H(B)</p>

    <section id="table2">
    <title>$BI=(B 2: $B<1JLL>>pJs(B</title>
    <table border="1">
    <columnspec><column width=".25"/><column width=".15"/>
      <column width=".3"/><column width=".25"/></columnspec>
    <tr><th>$B<1JLL>9`L\(B</th>
        <th>$BN,>N(B</th>
        <th>$B@bL@(B</th>
        <th>$BNc(B</th></tr>
    <tr><td>Common Name ($B%3%b%s%M!<%`(B)</td>
        <td>CN</td>
        <td>$BG'>Z$5$l$kL>A0(B<br />
        SSL$B@\B3$9$k(BURL</td>
        <td>CN=www.example.com</td></tr>
    <tr><td>Organization or Company ($BAH?%L>(B)</td>
        <td>O</td>
        <td>$BCDBN$N@5<01Q8lAH?%L>(B</td>
        <td>O=Example Japan K.K.</td></tr>
    <tr><td>Organizational Unit ($BItLgL>(B)</td>
        <td>OU</td>
        <td>$BIt=pL>$J$I(B</td>
        <td>OU=Customer Service</td></tr>
    <tr><td>City/Locality ($B;T6hD.B<(B)</td>
        <td>L</td>
        <td>$B=j:_$7$F$k;T6hD.B<(B</td>
        <td>L=Sapporo</td></tr>
    <tr><td>State/Province ($BETF;I\8)(B)</td>
        <td>ST</td>
        <td>$B=j:_$7$F$kETF;I\8)(B</td>
        <td>ST=Hokkaido</td></tr>
    <tr><td>Country($B9q(B)</td>
        <td>C</td>
        <td>$B=j:_$7$F$$$k9qL>$N(B ISO $B%3!<%I(B<br />
        $BF|K\$N>l9g(B JP
        </td>
        <td>C=JP</td></tr>
    </table>
    </section>

    <p>$BG'>Z6I$O$I$N9`L\$,>JN,2DG=$G$I$l$,I,?\$+$NJ}?K$rDj5A$9$k(B
    $B$+$b$7$l$^$;$s!#9`L\$NFbMF$K$D$$$F$bG'>Z6I$d>ZL@=q$N%f!<%6$+$i$N(B
    $BMW7o$,$"$k$+$b$7$l$^$;$s!#(B
    $BNc$($P!"%M%C%H%9%1!<%W$N%V%i%&%6$O%5!<%P$N>ZL@=q$N(B
     Common Name ($B%3%b%s%M!<%`(B)$B$,%5!<%P$N%I%a%$%sL>$N(B
     <code>*.example.com</code> 
    $B$H$$$&$h$&$J%o%$%k%I%+!<%I$N%Q%?!<%s$K%^%C%A$9$k$3$H(B
    $B$rMW5a$7$^$9!#(B</p>

    <p>$B%P%$%J%j7A<0$N>ZL@=q$O(B ASN.1 $BI=5-K!(B
     [<a href="#X208">X208</a>] [<a href="#PKCS">PKCS</a>] $B$G(B
    $BDj5A$5$l$F$$$^$9!#(B
    $B$3$NI=5-K!$OFbMF$r$I$N$h$&$K5-=R$9$k$+$rDj5A$7!"(B
    $BId9f2=$N5,Dj$,$3$N>pJs$,$I$N$h$&$K%P%$%J%j7A<0$KJQ49$5$l$k$+$r(B
    $BDj5A$7$^$9!#(B
    $B>ZL@=q$N%P%$%J%jId9f2=$O(B Distinguished Encoding
    Rules (DER) $B$GDj5A$5$l!"$=$l$O$h$j0lHLE*$J(B Basic Encoding Rules
    (BER) $B$K4p$E$$$F$$$^$9!#(B
    $B%P%$%J%j7A<0$r07$&$3$H$N$G$-$J$$Aw?.$G$O!"(B
    $B%P%$%J%j7A<0$O(B Base64 $BId9f2=(B [<a href="#MIME">MIME</a>] $B$G(B
    ASCII $B7A<0$KJQ49$5$l$k$3$H$,$"$j$^$9!#(B
    $B$3$N$h$&$KId9f2=$5$l!"0J2<$NNc$K<($5$l$k$h$&$K6h@Z$j9T$K(B
    $B64$^$l$?$b$N$O(B PEM $BId9f2=$5$l$?$H8@$$$^$9!#(B
    (PEM $B$NL>A0$O(B "Privacy Enhanced Mail" $B$KM3Mh$7$^$9(B)</p>

    <example>
    <title>PEM $BId9f2=$5$l$?>ZL@=q$NNc(B (example.crt)</title>
    <pre>-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----</pre>
    </example>
</section>

<section id="certificateauthorities">
<title>$BG'>Z6I(B</title>
    <p>$B$^$:>ZL@=q$N?=@A$N>pJs$r3NG'$9$k$3$H$G!"(B
    $BG'>Z6I$OHkL)80$N;}$A<g$N?H85$rJ]>Z$7$^$9!#(B
    $BNc$($P!"%"%j%9$,8D?M>ZL@=q$r?=@A$7$?$H$9$k$H!"(B
    $BG'>Z6I$O%"%j%9$,>ZL@=q$N?=@A$,<gD%$9$kDL$j$N(B
    $B?MJ*$@$H$$$&$3$H$r3NG'$7$J$/$F$O$$$1$^$;$s!#(B</p>

    <section id="certificatechains">
    <title>$B>ZL@=q3,AX9=B$(B</title>
        <p>$BG'>Z6I$OB>$NG'>Z6I$X$N>ZL@=q$rH/9T$9$k$3$H$,$G$-$^$9!#(B
        $BL$CN$N>ZL@=q$rD4$Y$k;~$K!"%"%j%9$O$=$N>ZL@=q$NH/9T<T(B
        $B$K<+?.$,;}$F$k$^$G!"H/9T<T$N>ZL@=q$r(B
        $B$=$N>e0L3,AX$NG'>Z6I$r$?$I$C$FD4$Y$kI,MW$,$"$j$^$9!#(B
        $B!V0-<A$J!W>ZL@=q$N4m81@-$r8:$i$9$?$a!"(B
        $BH`=w$O8B$i$l$?O":?$NH/9T<T$N$_?.Mj$9$k$h$&$K(B
        $B7h$a$k$3$H$b$G$-$^$9!#(B</p>
    </section>

    <section id="rootlevelca">
    <title>$B:G>e0LG'>Z6I$N:n@.(B</title>
        <p>$BA0$K=R$Y$?$h$&$K!"A4$F$N>ZL@=q$K$D$$$F!"(B
        $B:G>e0L$NG'>Z6I(B(CA)$B$^$G$=$l$>$l$NH/9T<T$,(B
        $BBP>]$N?H85>ZL@$NM-8z@-$rL@$i$+$K$9$kI,MW$,$"$j$^$9!#(B
        $BLdBj$O!"C/$,$=$N:G>e0L$NG'>Z5!4X$N>ZL@=q$rJ]>Z$9$k$N$+!"(B
        $B$H$$$&$3$H$G$9!#(B
        $B$3$N$h$&$J>l9g$K8B$j!">ZL@=q$O!V<+8J=pL>!W$5$l$^$9!#(B
        $B$D$^$j!">ZL@=q$NH/9T<T$H>ZL@BP>]$,F1$8$H$$$&$3$H$K$J$j$^$9!#(B
        $B$=$N7k2L!"<+8J=pL>$5$l$?>ZL@=q$r?.MQ$9$k$K$O(B
        $B:Y?4$NCm0U$,I,MW$G$9!#(B
        $B:G>e0LG'>Z6I$,8x3+80$r9-$/8xI=$9$k$3$H$G!"(B
        $B$=$N80$r?.Mj$9$k%j%9%/$rDc$/$9$k$3$H$,$G$-$^$9!#(B
        $B$b$7!"B>?M$,$=$NG'>Z6I$K$J$j$9$^$7$?;~$K!"$=$l$,O*8+$7$d(B
        $B$9$$$+$i$G$9!#(B
        $BB?$/$N%V%i%&%6$OM-L>$JG'>Z6I$r?.Mj$9$k$h$&$K(B
        $B@_Dj$5$l$F$$$^$9!#(B</p>

        <p><a href="http://www.thawte.com/">Thawte</a> 
        $B$d(B <a href="http://www.verisign.com/">VeriSign</a> 
        $B$N$h$&$JB?$/$N2q<R$,G'>Z6I$H$7$F3+@_$7$^$7$?!#(B
        $B$3$N$h$&$J2q<R$O0J2<$N%5!<%S%9$rDs6!$7$^$9(B:</p>

        <ul>
        <li>$B>ZL@=q?=@A$N3NG'(B</li>
        <li>$B>ZL@=q?=@A$N=hM}(B</li>
        <li>$B>ZL@=q$NH/9T$H4IM}(B</li>
        </ul>

        <p>$B<+J,$GG'>Z6I$r:n$k$3$H$b2DG=$G$9!#(B
        $B%$%s%?!<%M%C%H4D6-$G$O4m81$G$9$,!"(B
        $B8D?M$d%5!<%P$N?H85>ZL@$,4JC1$K9T$($kAH?%$N(B
        $B%$%s%H%i%M%C%HFb$G$OLr$KN)$D$+$b$7$l$^$;$s!#(B</p>
    </section>

    <section id="certificatemanagement">
    <title>$B>ZL@=q4IM}(B</title>
        <p>$BG'>Z6I$N3+@_$OE0Dl$7$?4IM}!"5;=Q!"1?MQ$NBN@)$rI,MW$H$9$k(B
        $B@UG$$N$"$k;E;v$G$9!#(B
        $BG'>Z6I$O>ZL@=q$rH/9T$9$k$@$1$G$J$/!"(B
        $B4IM}$b$7$J$1$l$P$J$j$^$;$s!#(B
        $B6qBNE*$K$O!">ZL@=q$,$$$D$^$GM-8z$+$r7hDj$7!"99?7$7!"(B
        $B$^$?4{$KH/9T$5$l$?$,<:8z$7$?>ZL@=q$N%j%9%H(B
        (Certificate Revocation Lists $B$^$?$O(B CRL)
        $B$r4IM}$7$J$1$l$P$$$1$^$;$s!#(B
        $BNc$($P!"%"%j%9$,2q<R$+$i<R0w$H$7$F>ZL@=q$rM?$($i$l$?$H$7$^$9!#(B
        $B$=$7$F!"%"%j%9$,2q<R$r<-$a$k$H$-$K$O>ZL@=q$r<h$j>C$5$J$1$l$P(B
        $B$$$1$J$$$H$7$^$9!#(B
        $B>ZL@=q$O<!!9$H?M$KEO$5$l$F$$$/$b$N$J$N$G!"(B
        $B>ZL@=q$=$N$b$N$+$i!"$=$l$,<h$j>C$5$l$?$+H=CG$9$k$3$H$O(B
        $BIT2DG=$G$9!#(B
        $B$h$C$F!">ZL@=q$NM-8z@-$rD4$Y$k$H$-$K$O!"(B
        $BG'>Z6I$KO"Mm$7$F(B CRL $B$r>H9g$9$kI,MW$,$"$j$^$9!#(B
        $BIaDL$3$N2aDx$O<+F02=$5$l$F$$$k$b$N$G$O$"$j$^$;$s!#(B</p>

        <note><title>$BCm0U(B</title>
        <p>$B%G%U%)%k%H$G%V%i%&%6$K@_Dj$5$l$F$$$J$$G'>Z6I$r;H$C$?>l9g!"(B
        $BG'>Z6I$N>ZL@=q$r%V%i%&%6$KFI$_9~$s$G!"(B
        $B%V%i%&%6$,$=$NG'>Z6I$K$h$C$F=pL>$5$l$?%5!<%P$N>ZL@=q$r(B
        $BM-8z2=$9$kI,MW$,$"$j$^$9!#(B
        $B0lEYFI$_9~$^$l$k$H!"$=$NG'>Z6I$K$h$C$F=pL>$5$l$?A4$F$N(B
        $B>ZL@=q$r<u$1F~$l$k$?$a!"4m81$rH<$$$^$9!#(B</p>
        </note>
    </section>
</section>
<!-- /certificateauthorities -->
</section>
<!-- /certificates -->

<section id="ssl">
<title>Secure Sockets Layer (SSL)</title>
<p>Secure Sockets Layer $B%W%m%H%3%k$O?.Mj@-$N$"$k%3%M%/%7%g%s7?$N(B
$B%M%C%H%o!<%/AX$N%W%m%H%3%k(B($BNc$($P!"(BTCP/IP)$B$H(B
$B%"%W%j%1!<%7%g%sAX$N%W%m%H%3%k(B($BNc$($P!"(BHTTP)
$B$N4V$KCV$/$3$H$,$G$-$^$9!#(B
SSL $B$O!"Aj8_G'>Z$K$h$C$F%5!<%P$H%/%i%$%"%s%H4V$N0BA4$JDL?.$r!"(B
$BEE;R=pL>$K$h$C$F%G!<%?$N40A4@-$r!"(B
$B$=$7$F0E9f2=$K$h$C$F%W%i%$%P%7$rDs6!$7$^$9!#(B</p>

<p>SSL $B%W%m%H%3%k$O0E9f2=!"%@%$%8%'%9%H!"EE;R=pL>$K$D$$$F!"(B
$BMM!9$J%"%k%4%j%:%`$r%5%]!<%H$9$k$h$&$K$G$-$F$$$^$9!#(B
$B$3$&$9$k$3$H$G!"K!$dM"=P$N5,@)$r9MN8$KF~$l$F!"%5!<%P$K9g$o$;$?(B
$B%"%k%4%j%:%`$rA*$V$3$H$,$G$-!"$^$?!"?7$7$$%"%k%4%j%:%`$r(B
$BMxMQ$7$F$$$/$3$H$b2DG=$K$7$F$$$^$9!#(B
$B%"%k%4%j%:%`$NA*Br$O%W%m%H%3%k%;%C%7%g%s3+;O;~$K(B
$B%5!<%P$H%/%i%$%"%s%H4V$G<h$j7h$a$i$l$^$9!#(B</p>

<section id="table4">
<title>$BI=(B4: SSL $B%W%m%H%3%k$N%P!<%8%g%s(B</title>
    <table border="1">
    <columnspec><column width=".15"/><column width=".2"/>
     <column width=".30"/><column width=".25"/></columnspec>
    <tr><th>$B%P!<%8%g%s(B</th>
        <th>$B=PE5(B</th>
        <th>$B@bL@(B</th>
        <th>$B%V%i%&%6$N%5%]!<%H(B</th></tr>
    <tr><td>SSL v2.0</td>
        <td>Vendor Standard (Netscape Corp. $B$h$j(B) [<a href="#SSL2"
        >SSL2</a>]</td>
        <td>$B<BAu$,8=B8$9$k=i$a$F$N(B SSL $B%W%m%H%3%k(B</td>
        <td>- NS Navigator 1.x/2.x<br />
        - MS IE 3.x<br />
        - Lynx/2.8+OpenSSL</td></tr>
    <tr><td>SSL v3.0</td>
        <td>Expired Internet Draft (Netscape Corp. $B$h$j(B) [<a href="#SSL3"
        >SSL3</a>]</td>
        <td>$BFCDj$N%;%-%e%j%F%#967b$rKI$0$?$a$N2~D{!"(B
        $BHs(BRSA $B0E9f$NDI2C!">ZL@=q3,AX9=B$$N%5%]!<%H(B</td>
        <td>- NS Navigator 2.x/3.x/4.x<br />
        - MS IE 3.x/4.x<br />
        - Lynx/2.8+OpenSSL</td></tr>
    <tr><td>TLS v1.0</td>
        <td>Proposed Internet Standard (IETF $B$h$j(B) [<a href="#TLS1"
        >TLS1</a>]</td>
        <td>MAC $B%l%$%d$r(B HMAC $B$X99?7!"%V%m%C%/0E9f$N(B block
        padding$B!"%a%C%;!<%8=g=x$NI8=`2=!"7Y9pJ8$N=<<B$J$I$N$?$a(B
        SSL 3.0 $B$r2~D{!#(B</td>
        <td>- Lynx/2.8+OpenSSL</td></tr>
    </table>
</section>

<p><a href="#table4">$BI=(B4</a>$B$K<($5$l$k$H$*$j!"(BSSL $B%W%m%H%3%k$K$O(B
$B$$$/$D$b$N%P!<%8%g%s$,$"$j$^$9!#(B
$BI=$K$b=q$+$l$F$$$k$h$&$K!"(BSSL 3.0 $B$NMxE@$N0l$D$O(B
$B>ZL@=q3,AX9=B$$r%5%]!<%H$9$k$3$H$G$9!#(B
$B$3$N5!G=$K$h$C$F!"%5!<%P$O<+J,$N>ZL@=q$K2C$($F!"(B
$BH/9T<T$N>ZL@=q$r%V%i%&%6$KEO$9$3$H$,$G$-$^$9!#(B
$B>ZL@=q3,AX9=B$$K$h$C$F!"(B
$B%V%i%&%6$KH/9T<T$N>ZL@=q$,D>@\EPO?$5$l$F$$$J$/$F$b!"(B
$B3,AX$NCf$K4^$^$l$F$$$l$P!"(B
$B%V%i%&%6$O%5!<%P$N>ZL@=q$rM-8z2=$9$k$3$H$,$G$-$^$9!#(B
SSL 3.0 $B$O8=:_(B Internet Engineering Task Force (IETF) 
$B$K$h$C$F3+H/$5$l$F$$$k(B Transport Layer Security 
[<a href="#TLS1">TLS</a>] $B%W%m%H%3%kI8=`5,3J$N4pAC$H$J$C$F$$$^$9!#(B</p>

<section id="session">
<title>$B%;%C%7%g%s$N3NN)(B</title>
    <p><a href="#figure1">$B?^(B1</a>$B$G<($5$l$k$h$&$K!"(B
    $B%;%C%7%g%s$N3NN)$O%/%i%$%"%s%H$H%5!<%P4V$N(B
    $B%O%s%I%7%'!<%/%7!<%/%(%s%9$K$h$C$F9T$J$o$l$^$9!#(B
    $B%5!<%P$,>ZL@=q$rDs6!$9$k$+!"%/%i%$%"%s%H$N>ZL@=q$r%j%/%(%9%H$9$k$+(B
    $B$H$$$&%5!<%P$N@_Dj$K$h$j!"$3$N%7!<%/%(%s%9$O0[$J$k$b$N$H$J$j$^$9!#(B
    $B0E9f>pJs$N4IM}$N$?$a$K!"DI2C$N%O%s%I%7%'!<%/2aDx$,I,MW$K$J$k(B
    $B>l9g$b$"$j$^$9$,!"$3$N5-;v$G$O(B
    $B$h$/$"$k%7%J%j%*$r<jC;$K@bL@$7$^$9!#(B
    $BA4$F$N2DG=@-$K$D$$$O!"(BSSL $B;EMM=q$r;2>H$7$F$/$@$5$$!#(B</p>

    <note><title>$BCm0U(B</title>
    <p>$B0lEY(B SSL $B%;%C%7%g%s$,3NN)$9$k$H!"%;%C%7%g%s$r:FMxMQ$9$k$3$H$G!"(B
    $B%;%C%7%g%s$r3+;O$9$k$?$a$NB?$/$N2aDx$r7+$jJV$9$H$$$&(B
    $B%Q%U%)!<%^%s%9$NB;<:$rKI$.$^$9!#(B
    $B$=$N$?$a!"%5!<%P$OA4$F$N%;%C%7%g%s$K0l0U$J%;%C%7%g%s<1JLL>$r(B
    $B3d$jEv$F!"%5!<%P$K%-%c%C%7%e$7!"%/%i%$%"%s%H$O<!2s$+$i(B
    ($B<1JLL>$,%5!<%P$N%-%c%C%7%e$G4|8B@Z$l$K$J$k$^$G$O(B)
    $B%O%s%I%7%'!<%/$J$7$G@\B3$9$k$3$H$,$G$-$^$9!#(B</p>
    </note>

    <p class="figure">
    <img 
    src="../images/ssl_intro_fig1.gif" alt="" width="423" height="327" /><br />
    <a id="figure1" name="figure1"><dfn>$B?^(B1</dfn></a>: SSL
    $B%O%s%I%7%'!<%/%7!<%/%(%s%935N,(B</p>

    <p>$B%5!<%P$H%/%i%$%"%s%H$G;H$o$l$k(B
    $B%O%s%I%7%'!<%/%7!<%/%(%s%9$NMWAG$r0J2<$K<($7$^$9(B:</p>

    <ol>
    <li>$B%G!<%?DL?.$K;H$o$l$k0E9f%9%$!<%H$N<h$j7h$a(B</li>
    <li>$B%/%i%$%"%s%H$H%5!<%P4V$G$N%;%C%7%g%s80$N3NN)$H6&M-(B</li>
    <li>$B%*%W%7%g%s$H$7$F!"%/%i%$%"%s%H$KBP$9$k%5!<%P$NG'>Z(B</li>
    <li>$B%*%W%7%g%s$H$7$F!"%5!<%P$KBP$9$k%/%i%$%"%s%H$NG'>Z(B</li>
    </ol>

    <p>$BBh0l%9%F%C%W$N0E9f%9%$!<%H<h$j7h$a$K$h$C$F!"(B
    $B%5!<%P$H%/%i%$%"%s%H$O$=$l$>$l$K$"$C$?(B
    $B0E9f%9%$!<%H$rA*$V$3$H$,$G$-$^$9!#(B
    SSL3.0 $B%W%m%H%3%k$N;EMM=q$O(B 31 $B$N0E9f%9%$!<%H$rDj5A$7$F$$$^$9!#(B
    $B0E9f%9%$!<%H$O0J2<$N%3%s%]!<%M%s%H$K$h$jDj5A$5$l$F$$$^$9(B:</p>

    <ul>
    <li>$B80$N8r49<jCJ(B</li>
    <li>$B%G!<%?DL?.$N0E9f=Q(B</li>
    <li>Message Authentication Code (MAC) $B:n@.$N$?$a$N(B
    $B%a%C%;!<%8%@%$%8%'%9%H(B</li>
    </ul>

    <p>$B$3$l$i$N;0$D$NMWAG$O0J2<$N%;%/%7%g%s$G@bL@$5$l$F$$$^$9!#(B</p>
</section>

<section id="keyexchange">
<title>$B80$N8r49<jCJ(B</title>
    <p>$B80$N8r49<jCJ$O%"%W%j%1!<%7%g%s$N%G!<%?DL?.$K;H$o$l!"(B
    $B6&M-$5$l$kBP>N0E9f80$r$I$N$h$&$K$,%/%i%$%"%s%H$H%5!<%P$G(B
    $B<h$j7h$a$k$+$rDj5A$7$^$9!#(B
    SSL 2.0 $B$O(B RSA $B808r49$7$+;H$$$^$;$s$,!"(B
    SSL 3.0 $B$O>ZL@=q$,;H$o$l$k$H$-$O(B RSA $B808r49$r;H$$!"(B
    $B>ZL@=q$,L5$/!"%/%i%$%"%s%H$H%5!<%P$N;vA0$NDL?.$,L5$$>l9g$O(B
    Diffie-Hellman $B808r49$r;H$&(B
    $B$J$IMM!9$J808r49%"%k%4%j%:%`$r%5%]!<%H$7$^$9!#(B</p>

    <p>$B80$N8r49J}K!$K$*$1$k0l$D$NA*Br;h$OEE;R=pL>$G$9!#(B
    $BEE;R=pL>$r;H$&$+$I$&$+!"$^$?!"(B
    $B$I$N<oN`$N=pL>$r;H$&$+$H$$$&A*Br$,$"$j$^$9!#(B
    $BHkL)80$G=pL>$9$k$3$H$G6&M-80$r@8@.$9$7!">pJs8r49$9$k;~$N(B
    $B%^%s!&%$%s!&%6!&%_%I%k967b$rKI$0$3$H$,$G$-$^$9!#(B
    [<a href="#AC96">AC96</a>, p516]</p>
</section>

<section id="ciphertransfer">
<title>$B%G!<%?DL?.$N0E9f=Q(B</title>
    <p>SSL $B$O%;%C%7%g%s$N%a%C%;!<%8$N0E9f2=$KA0=R$7$?(B
    $B=>Mh7?0E9f(B($BBP>N0E9f(B)$B$rMQ$$$^$9!#(B
    $B0E9f2=$7$J$$$H$$$&A*Br;h$b4^$a6e$D$NA*Br;h$,$"$j$^$9(B:</p>

    <ul>
    <li>$B0E9f2=$J$7(B</li>
    <li>$B%9%H%j!<%`0E9f(B
        <ul>
        <li>40-bit $B80$G$N(B RC4</li>
        <li>128-bit $B80$G$N(B RC4</li>
        </ul></li>
    <li>CBC $B%V%m%C%/0E9f(B
        <ul><li>40 bit $B80$G$N(B RC2</li>
        <li>40 bit $B80$G$N(B DES</li>
        <li>56 bit $B80$G$N(B DES</li>
        <li>168 bit $B80$G$N(B Triple-DES</li>
        <li>Idea (128 bit $B80(B)</li>
        <li>Fortezza (96 bit $B80(B)</li>
        </ul></li>
    </ul>

    <p>$B$3$3$G$N(B CBC $B$H$O0E9f%V%m%C%/O":?(B (Cipher Block Chaining)
     $B$NN,$G!"0l$DA0$N0E9f2=$5$l$?0E9fJ8$N0lIt$,(B
    $B%V%m%C%/$N0E9f2=$K;H$o$l$k$3$H$r0UL#$7$^$9!#(B
    DES $B$O%G!<%?0E9f2=I8=`5,3J(B (Data Encryption Standard)
     [<a href="#AC96">AC96</a>, ch12] $B$NN,$G!"(B
    DES40 $B$d(B 3DES_EDE $B$r4^$`$$$/$D$b$N<oN`$,$"$j$^$9!#(B
    Idea $B$O:G9b$J$b$N$N0l$D$G!"0E9f=QE*$K$O8=:_$"$kCf$G(B
    $B:G$b6/NO$J$b$N$G$9!#(B
    RC2 $B$O(B RSA DSI $B$K$h$kFH@jE*$J%"%k%4%j%:%`$G$9!#(B
     [<a href="#AC96">AC96</a>,
    ch13]</p>
</section>

<section id="digestfuntion">
<title>$B%@%$%8%'%9%H4X?t(B</title>
    <p>
    $B%@%$%8%'%9%H4X?t$NA*Br$O%l%3!<%I%f%K%C%H$+$i$I$N$h$&$K%@%$%8%'%9%H$,@8@.$5$l$k$+$r7hDj$7$^$9!#(B
    SSL $B$O0J2<$r%5%]!<%H$7$^$9(B:</p>

    <ul>
    <li>$B%@%$%8%'%9%H$J$7(B</li>
    <li>MD5 (128-bit $B%O%C%7%e(B)</li>
    <li>Secure Hash Algorithm (SHA-1) (160-bit $B%O%C%7%e(B)</li>
    </ul>

    <p>$B%a%C%;!<%8%@%$%8%'%9%H$O(B Message Authentication Code (MAC) 
    $B$N@8@.$K;H$o$l!"%a%C%;!<%8$H6&$K0E9f2=$5$l!"%a%C%;!<%8$N?.MQ$r(B
    $BDs6!$7!"%j%W%l%$967b$rKI$.$^$9!#(B</p>
</section>

<section id="handshake">
<title>$B%O%s%I%7%'!<%/%7!<%/%(%s%9%W%m%H%3%k(B</title>
    <p>$B%O%s%I%7%'!<%/%7!<%/%(%s%9$O;0$D$N%W%m%H%3%k$r;H$$$^$9(B:</p>

    <ul>
    <li><dfn>SSL $B%O%s%I%7%'!<%/%W%m%H%3%k(B</dfn>$B$O(B
    $B%/%i%$%"%s%H$H%5!<%P4V$G$N(B SSL $B%;%C%7%g%s$N3NN)$K;H$o$l$^$9!#(B</li>
    <li><dfn>SSL $B0E9f;EMMJQ99%W%m%H%3%k(B</dfn>$B$O(B
    $B%;%C%7%g%s$G$N0E9f%9%$!<%H$N<h$j7h$a$K;H$o$l$^$9!#(B</li>
    <li><dfn>SSL $B7Y9p%W%m%H%3%k(B</dfn>$B$O(B
    $B%/%i%$%"%s%H%5!<%P4V$G(B SSL $B%(%i!<$rEAC#$9$k$N$K;H$o$l$^$9!#(B</li>
    </ul>

    <p>$B;0$D$N%W%m%H%3%k$O!"%"%W%j%1!<%7%g%s%W%m%H%3%k%G!<%?$H$H$b$K!"(B
    <a href="#figure2">$B?^(B2</a>$B$K<($9$H$*$j(B <dfn>SSL $B%l%3!<%I%W%m%H%3%k(B</dfn>
    $B$G%+%W%;%k2=$5$l$^$9!#(B
    $B%+%W%;%k2=$5$l$?%W%m%H%3%k$O%G!<%?$r8!::$7$J$$(B
    $B2<AX$N%W%m%H%3%k$K$h$C$F%G!<%?$H$7$FEAC#$5$l$^$9!#(B
    $B%+%W%;%k2=$5$l$?%W%m%H%3%k$O2<AX$N%W%m%H%3%k$K4X$7$F0l@Z4XCN$7$^$;$s!#(B</p>

    <p class="figure">
    <img src="../images/ssl_intro_fig2.gif" alt="" width="428"
        height="217" /><br />
    <a id="figure2" name="figure2"><dfn>$B?^(B2</dfn></a>: SSL $B%W%m%H%3%k%9%?%C%/(B
    </p>

    <p>
    $B%l%3!<%I%W%m%H%3%k$K$h$k(B SSL $B%3%s%H%m!<%k%W%m%H%3%k$N%+%W%;%k2=$O!"(B
    $B%"%/%F%#%V$J%;%C%7%g%s$NFs2sL\$NDL?.$,$"$C$?>l9g!"(B
    $B%3%s%H%m!<%k%W%m%H%3%k$,0BA4$G$"$k$3$H$r0UL#$7$^$9!#(B
    $B4{$K%;%C%7%g%s$,L5$$>l9g$O!"(BNull $B0E9f%9%$!<%H$,;H$o$l!"(B
    $B0E9f2=$O9T$J$o$l$:!"%;%C%7%g%s$,3NN)$9$k$^$G$O(B
    $B%@%$%8%'%9%H$bL5$$>uBV$H$J$j$^$9!#(B</p>
</section>

<section id="datatransfer">
<title>$B%G!<%?DL?.(B</title>
    <p><a href="#figure3">$B?^(B3</a>$B$K<($5$l$k(B SSL $B%l%3!<%I%W%m%H%3%k(B
    $B$O%/%i%$%"%s%H$H%5!<%P4V$N%"%W%j%1!<%7%g%s$d(B
    SSL $B%3%s%H%m!<%k%G!<%?$NDL?.$K;H$o$l$^$9!#(B
    $B$3$N%G!<%?$O$h$j>.$5$$%f%K%C%H$KJ,$1$i$l$?$j!"(B
    $B$$$/$D$+$N9b5i%W%m%H%3%k$r$^$H$a$F0l%f%K%C%H$H$7$FDL?.$,(B
    $B9T$J$o$l$k$3$H$b$"$j$^$9!#(B
    $B%G!<%?$r05=L$7!"%@%$%8%'%9%H=pL>$rE:IU$7$F!"(B
    $B$3$l$i$N%f%K%C%H$r0E9f2=$7$?$N$A!"%Y!<%9$H$J$C$F$$$k(B
    $B?.Mj@-$N$"$k%H%i%s%9%]!<%H%W%m%H%3%k$rMQ$$$k$+$b$7$l$^$;$s!#(B
    ($BCm0U(B: $B8=:_%a%8%c!<$J(B SLL $B<BAu$G05=L$r%5%]!<%H$7$F$$$k$b$N$O$"$j$^$;$s(B)</p>

    <p class="figure">
    <img src="../images/ssl_intro_fig3.gif" alt="" width="423"
        height="323" /><br />
    <a id="figure3" name="figure3"><dfn>$B?^(B 3</dfn></a>: SSL $B%l%3!<%I%W%m%H%3%k(B
    </p>
</section>

<section id="securehttp">
<title>HTTP $BDL?.$N0BA42=(B</title>
    <p>$B$h$/$"$k(B SSL $B$N;H$$J}$O%V%i%&%6$H%&%'%V%5!<%P4V$N(B HTTP $BDL?.(B
    $B$N0BA42=$G$9!#(B
    $B$3$l$O!"=>Mh$N0BA4$G$O$J$$(B HTTP $B$N;HMQ$r=|30$9$k$b$N$G$O$"$j$^$;$s!#(B
    $B0BA42=$5$l$?$b$N$O<g$K(B SSH $B>e$NIaDL$N(B HTTP $B$G!"(BHTTPS $B$H8F$P$l$^$9!#(B
    $BBg$-$J0c$$$O!"(BURL $B%9%-!<%`$K(B <code>http</code> $B$NBe$o$j$K(B <code>https</code>
    $B$rMQ$$!"%5!<%P$,JL$N%]!<%H$r;H$&$3$H$G$9(B ($B%G%U%)%k%H$G$O(B443)$B!#(B
    $B$3$l$,<g$K(B <module
    >mod_ssl</module> $B$,(B Apache $B%&%'%V%5!<%P$KDs6!$9$k5!G=$G$9!#(B</p>
</section>
</section>
<!-- /ssl -->

<section id="references">
<title>$B;29MJ88%(B</title>
<dl>
<dt><a id="AC96" name="AC96">[AC96]</a></dt>
<dd>Bruce Schneier, <q>Applied Cryptography</q>, 2nd Edition, Wiley,
1996. See <a href="http://www.counterpane.com/"
>http://www.counterpane.com/</a> for various other materials by Bruce
Schneier.</dd>

<dt><a id="X208" name="X208">[X208]</a></dt>
<dd>ITU-T Recommendation X.208, <q>Specification of Abstract Syntax Notation
One (ASN.1)</q>, 1988. See for instance <a
href="http://www.itu.int/rec/recommendation.asp?type=items&amp;lang=e&amp;parent=T-REC-X.208-198811-I"
>http://www.itu.int/rec/recommendation.asp?type=items&amp;lang=e&amp;parent=T-REC-X.208-198811-I</a>.
</dd>

<dt><a id="X509" name="X509">[X509]</a></dt>
<dd>ITU-T Recommendation X.509, <q>The Directory - Authentication
Framework</q>. See for instance <a
href="http://www.itu.int/rec/recommendation.asp?type=folders&amp;lang=e&amp;parent=T-REC-X.509"
>http://www.itu.int/rec/recommendation.asp?type=folders&amp;lang=e&amp;parent=T-REC-X.509</a>.
</dd>

<dt><a id="PKCS" name="PKCS">[PKCS]</a></dt>
<dd><q>Public Key Cryptography Standards (PKCS)</q>, 
RSA Laboratories Technical Notes, See <a
href="http://www.rsasecurity.com/rsalabs/pkcs/"
>http://www.rsasecurity.com/rsalabs/pkcs/</a>.</dd>

<dt><a id="MIME" name="MIME">[MIME]</a></dt>
<dd>N. Freed, N. Borenstein, <q>Multipurpose Internet Mail Extensions
(MIME) Part One: Format of Internet Message Bodies</q>, RFC2045.
See for instance <a href="http://ietf.org/rfc/rfc2045.txt"
>http://ietf.org/rfc/rfc2045.txt</a>.</dd>

<dt><a id="SSL2" name="SSL2">[SSL2]</a></dt>
<dd>Kipp E.B. Hickman, <q>The SSL Protocol</q>, 1995. See <a
href="http://www.netscape.com/eng/security/SSL_2.html"
>http://www.netscape.com/eng/security/SSL_2.html</a>.</dd>

<dt><a id="SSL3" name="SSL3">[SSL3]</a></dt>
<dd>Alan O. Freier, Philip Karlton, Paul C. Kocher, <q>The SSL Protocol
Version 3.0</q>, 1996. See <a
href="http://www.netscape.com/eng/ssl3/draft302.txt"
>http://www.netscape.com/eng/ssl3/draft302.txt</a>.</dd>

<dt><a id="TLS1" name="TLS1">[TLS1]</a></dt>
<dd>Tim Dierks, Christopher Allen, <q>The TLS Protocol Version 1.0</q>,
1999. See <a href="http://ietf.org/rfc/rfc2246.txt"
>http://ietf.org/rfc/rfc2246.txt</a>.</dd>
</dl>
</section>
<!-- /references -->

</manualpage>