diff -urN enlightenment-0.17.1/config.h.in enlightenment-0.17.1.pam/config.h.in
--- enlightenment-0.17.1/config.h.in	2013-02-12 12:28:43.000000000 +0200
+++ enlightenment-0.17.1.pam/config.h.in	2013-04-01 16:38:54.000000000 +0300
@@ -119,6 +119,9 @@
 /* PAM Authentication Support */
 #undef HAVE_PAM
 
+/* PAM Authentication helper Support */
+#undef USE_PAM_HELPER
+
 /* Define to 1 if you have the <security/pam_appl.h> header file. */
 #undef HAVE_SECURITY_PAM_APPL_H
 
diff -urN enlightenment-0.17.1/configure.ac enlightenment-0.17.1.pam/configure.ac
--- enlightenment-0.17.1/configure.ac	2013-02-12 12:28:43.000000000 +0200
+++ enlightenment-0.17.1.pam/configure.ac	2013-04-01 16:38:54.000000000 +0300
@@ -111,6 +111,16 @@
     fi
 fi
 
+use_pam_helper=no
+AC_ARG_WITH(pam-helper,
+  AC_HELP_STRING([--with-pam-helper], [with PAM helper @<:@default=no@:>@]),
+  [use_pam_helper=$withval],
+  [use_pam_helper=no]
+)
+if test "x$use_pam_helper" != "xno" ; then
+  AC_DEFINE_UNQUOTED(USE_PAM_HELPER, "$use_pam_helper", [PAM Authentication helper path])
+fi
+
 dnl AC_E_CHECK_PKG(VALGRIND, [valgrind >= 2.4.0], [], [:])
 AC_SUBST(VALGRIND_CFLAGS)
 AC_SUBST(VALGRIND_LIBS)
diff -urN enlightenment-0.17.1/src/bin/e_desklock.c enlightenment-0.17.1.pam/src/bin/e_desklock.c
--- enlightenment-0.17.1/src/bin/e_desklock.c	2013-02-12 12:28:43.000000000 +0200
+++ enlightenment-0.17.1.pam/src/bin/e_desklock.c	2013-04-01 17:18:36.000000000 +0300
@@ -1005,6 +1005,22 @@
         char *current_user, *p;
         struct sigaction action;
 
+#ifdef USE_PAM_HELPER
+        if (!access(USE_PAM_HELPER, X_OK)) {
+          FILE *fp = popen(USE_PAM_HELPER, "w");
+
+          if (fp)
+            {
+               int status;
+
+               fputs(passwd, fp);
+               status = pclose(fp);
+               if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
+                 exit(0);
+            }
+          exit(-1);
+        }
+#endif
         action.sa_handler = SIG_DFL;
         action.sa_flags = SA_ONSTACK | SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
         sigemptyset(&action.sa_mask);