+PGG \e$B$G\e(B @code{gpg-agent}\e$B$r;H$&$K$O!"Bh0l$K\e(B @code{gpg-agent} \e$B$,3N<B$K2TF/\e(B
+\e$B$7$F$$$k$h$&$K$7$F$/$@$5$$!#Nc$($P\e(B X Window System \e$B$rAv$i$;$F$$$k$N$G$"\e(B
+\e$B$l$P!"0J2<$N9T$r$"$J$?$N\e(B @file{.xsession} \e$B%U%!%$%k$KCV$/$3$H$K$h$C$F!"$=\e(B
+\e$B$l$r3N<B$K$9$k$3$H$,$G$-$^$9\e(B:
+
+@smallexample
+eval "$(gpg-agent --daemon)"
+@end smallexample
+
+@code{gpg-agent} \e$B$N5/F0$K4X$9$k$5$i$K>\$7$$$3$H$O!"\e(B@xref{Invoking
+GPG-AGENT,,,gnupg,Using the GNU Privacy Guard}.
+
+GnuPG \e$B$N%Q%9%U%l!<%:$rI,MW$H$9$k\e(B PGG \e$B$N5!G=$r<B9T$9$k$H$-$O$$$D$b!"\e(B
+GnuPG \e$B$O\e(B @code{gpg-agent} \e$B$H$d$j<h$j$r9T$J$$!"$=$l$O$"$J$?$K%Q%9%U%l!<%:\e(B
+\e$B$rF~NO$9$k$3$H$rMW5a$7$^$9!#$7$+$7\e(B @code{gpg-agent} \e$B$,$=$N7k2L$r!V%-%c%C\e(B
+\e$B%7%e!W$9$k$N$G!"<!2s0J9_$N<B9T$G$O:F$S%Q%9%U%l!<%:$NF~NO$OMW$j$^$;$s!#\e(B
+(\e$BDL>o$3$N%-%c%C%7%e$O0lDj;~4V7P2a8e$K4|8B@Z$l>C5n$5$l$^$9!#$3$l$rJQ99$9\e(B
+\e$B$k$K$O!"\e(B@code{gpg-agent} \e$B$r5/F0$9$k$H$-$K\e(B @code{--default-cache-ttl} \e$B%*\e(B
+\e$B%W%7%g%s$r;H$C$F$/$@$5$$!#\e(B)
+
+X Window System \e$B$N4D6-$G$O\e(B @code{gpg-agent} \e$B$O%Q%9%U%l!<%:$NF~NO$rMW5a$9\e(B
+\e$B$k$?$a$K%0%i%U%#%C%/$J%&%#%s%I%&$r3+$-$^$9!#$7$+$7J8;zC<Kv$G\e(B Emacs \e$B$r;H$C\e(B
+\e$B$F$$$k>l9g$O!"\e(B@code{gpg-agent} \e$B$OC<Kv$+$i$NF~NO$r<u$1<h$k>e$GLdBj$,$"$j\e(B
+\e$B$^$9!#$=$l$,\e(B Emacs \e$B$KAw$i$l$F$7$^$&$+$i$G$9!#$3$NLdBj$KBP=h$9$k$?$a$N;C\e(B
+\e$BDjE*$JBP:v$N$R$H$D$O!"\e(B@code{gpg-agent} \e$B$r\e(B @code{--keep-tty} \e$B%*%W%7%g%s$H\e(B
+\e$B$H$b$K\e(B Emacs \e$B$H$OJL$NC<Kv$GAv$i$;$k$3$H$G$9!#$3$l$O\e(B @code{gpg-agent} \e$B$K!"\e(B
+\e$B%Q%9%U%l!<%:$NF~NO$K$=$l<+?H$NC<Kv$r;H$&$h$&$K$5$;$^$9!#\e(B
+
+@code{gpg-agent} \e$B$r;H$o$J$$>l9g!"\e(BPGG \e$B$O\e(B Emacs \e$B$r2p$7$F%Q%9%U%l!<%:$NF~NO\e(B
+\e$B$rMW5a$7$^$9!#$3$l$K$O%Q%9%U%l!<%:$r%-%c%C%7%e$9$k;EAH$_$,$"$j!"$=$l$OJQ\e(B
+\e$B?t\e(B @code{pgg-cache-passphrase} \e$B$G@)8f$5$l$^$9\e(B (\e$B2<5-;2>H\e(B)\e$B!#\e(B
+
+@code{gpg-agent} \e$B$G$O$J$/\e(B PGG \e$B$G%Q%9%U%l!<%:$r07$&>l9g$K$O0BA4>e$N%j%9%/\e(B
+\e$B$,$"$j$^$9!#\e(BEmacs \e$B$NMW5a$K=>$C$F%Q%9%U%l!<%:$rF~NO$9$k$H!"$=$l$O0l;~E*\e(B
+\e$B$K\e(B Emacs \e$B$,<B9T$7$F$$$k%a%b%j!<$K\e(B cleartext \e$BJ8;zNs$H$7$F3JG<$5$l$^$9!#$b\e(B
+\e$B$7$=$N%a%b%j!<$,%G%#%9%/$H$N4V$G\e(B swap \e$B$5$l$k$H!"M}O@>e\e(B root \e$B%f!<%6!<$O%Q\e(B
+\e$B%9%U%l!<%:$r\e(B swap \e$B%U%!%$%k$+$iCj=P$9$k$3$H$,$G$-$^$9!#$=$N>e!"$=$N%7%9%F\e(B
+\e$B%`$,GQ4~$5$l$?$jEpFq$K2q$C$?8e$b!"$=$N\e(B cleartext \e$B$N%Q%9%U%l!<%:$,4^$^$l\e(B
+\e$B$F$$$k\e(B swap \e$B%U%!%$%k$O%G%#%9%/$K;D$C$F$$$k$+$b$7$l$J$$$N$G$9!#\e(B
+@code{gpg-agent} \e$B$O%a%b%j!<$r\e(B lock \e$B$9$k$h$&$J:v$r$b$C$F!"$3$NLdBj$r2sHr\e(B
+\e$B$7$F$$$^$9!#$=$l$O\e(B Emacs \e$B$K$O<BAu$5$l$F$$$^$;$s!#\e(B