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+<?xml version="1.0" encoding="latin1" ?>
+<!DOCTYPE appref SYSTEM "appref.dtd">
+
+<appref>
+  <header>
+    <copyright>
+      <year>1999</year>
+      <year>2007</year>
+      <holder>Ericsson AB, All Rights Reserved</holder>
+    </copyright>
+    <legalnotice>
+  The contents of this file are subject to the Erlang Public License,
+  Version 1.1, (the "License"); you may not use this file except in
+  compliance with the License. You should have received a copy of the
+  Erlang Public License along with this software. If not, it can be
+  retrieved online at http://www.erlang.org/.
+
+  Software distributed under the License is distributed on an "AS IS"
+  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+  the License for the specific language governing rights and limitations
+  under the License.
+
+  The Initial Developer of the Original Code is Ericsson AB.
+    </legalnotice>
+
+    <title>crypto</title>
+    <prepared>Peter H&ouml;gfeldt</prepared>
+    <responsible>Peter H&ouml;gfeldt</responsible>
+    <docno></docno>
+    <approved>Peter H&ouml;gfeldt</approved>
+    <checked>Peter H&ouml;gfeldt</checked>
+    <date>2003-06-01</date>
+    <rev>B</rev>
+    <file>crypto_app.sgml</file>
+  </header>
+  <app>crypto</app>
+  <appsummary>The Crypto Application</appsummary>
+  <description>
+    <p>The purpose of the Crypto application is to provide message
+      digest and DES encryption for SMNPv3. It provides computation of
+      message digests MD5 and SHA, and CBC-DES encryption and
+      decryption.</p>
+    <p></p>
+  </description>
+
+  <section>
+    <title>Configuration</title>
+    <p>The following environment configuration parameters are defined
+      for the Crypto application. Refer to application(3) for more
+      information about configuration parameters.
+      </p>
+    <taglist>
+      <tag><c><![CDATA[debug = true | false <optional>]]></c></tag>
+      <item>
+        <p>Causes debug information to be written to standard
+          error or standard output. Default is <c>false</c>.
+          </p>
+      </item>
+    </taglist>
+  </section>
+
+  <section>
+    <title>OpenSSL libraries</title>
+    <p>The current implementation of the Erlang Crypto application is
+      based on the <em>OpenSSL</em> package version 0.9.7 or higher.
+      There are source and binary releases on the web.
+      </p>
+    <p>Source releases of OpenSSL can be downloaded from the <url href="http://www.openssl.org">OpenSSL</url> project home page,
+      or mirror sites listed there.
+      </p>
+    <p>The same URL also contains links to some compiled binaries and
+      libraries of OpenSSL (see the <c>Related/Binaries</c> menu) of
+      which the <url href="http://www.shininglightpro.com/search.php?searchname=Win32+OpenSSL">Shining Light Productions Win32 and OpenSSL</url> pages are of
+      interest for the Win32 user.
+      </p>
+    <p>For some Unix flavours there are binary packages available
+      on the net.
+      </p>
+    <p>If you cannot find a suitable binary OpenSSL package, you
+      have to fetch an OpenSSL source release and compile it.
+      </p>
+    <p>You then have to compile and install the library
+      <c>libcrypto.so</c> (Unix), or the library <c>libeay32.dll</c>
+      (Win32).
+      </p>
+    <p>For Unix The <c>crypto_drv</c> dynamic driver is delivered linked
+      to OpenSSL libraries in <c>/usr/local/lib</c>, but the default
+      dynamic linking will also accept libraries in <c>/lib</c> and
+      <c>/usr/lib</c>.
+      </p>
+    <p>If that is not applicable to the particular Unix operating
+      system used, the example <c>Makefile</c> in the Crypto
+      <c>priv/obj</c> directory, should be used as a basis for 
+      relinking the final version of the port program.
+      </p>
+    <p>For <c>Win32</c> it is only required that the library can be
+      found from the <c>PATH</c> environment variable, or that they
+      reside in the appropriate <c>SYSTEM32</c> directory; hence no
+      particular relinking is need. Hence no example <c>Makefile</c>
+      for Win32 is provided.</p>
+  </section>
+
+  <section>
+    <title>SEE ALSO</title>
+    <p>application(3)</p>
+  </section>
+</appref>
+