Adding upstream version 2.4.38.upstream/2.4.38

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-07 02:04:06 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-07 02:04:06 +0000
commit: 5dff2d61cc1c27747ee398e04d8e02843aabb1f8 (patch)
tree: a67c336b406c8227bac912beb74a1ad3cdc55100 /docs/manual/mod/mod_session_crypto.html.en
parent: Initial commit. (diff)
download: apache2-5dff2d61cc1c27747ee398e04d8e02843aabb1f8.tar.xz
apache2-5dff2d61cc1c27747ee398e04d8e02843aabb1f8.zip
1 files changed, 265 insertions, 0 deletions
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+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>
+<meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type" />
+<!--
+        XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+              This file is generated from xml source: DO NOT EDIT
+        XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+      -->
+<title>mod_session_crypto - Apache HTTP Server Version 2.4</title>
+<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
+<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
+<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" />
+<script src="../style/scripts/prettify.min.js" type="text/javascript">
+</script>
+
+<link href="../images/favicon.ico" rel="shortcut icon" /></head>
+<body>
+<div id="page-header">
+<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
+<p class="apache">Apache HTTP Server Version 2.4</p>
+<img alt="" src="../images/feather.png" /></div>
+<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
+<div id="path">
+<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.4</a> &gt; <a href="./">Modules</a></div>
+<div id="page-content">
+<div id="preamble"><h1>Apache Module mod_session_crypto</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_session_crypto.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_session_crypto.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Session encryption support</td></tr>
+<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
+<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>session_crypto_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_session_crypto.c</td></tr>
+<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3 and later</td></tr></table>
+<h3>Summary</h3>
+
+    <div class="warning"><h3>Warning</h3>
+      <p>The session modules make use of HTTP cookies, and as such can fall
+      victim to Cross Site Scripting attacks, or expose potentially private
+      information to clients. Please ensure that the relevant risks have
+      been taken into account before enabling the session functionality on
+      your server.</p>
+    </div>
+
+    <p>This submodule of <code class="module"><a href="../mod/mod_session.html">mod_session</a></code> provides support for the
+    encryption of user sessions before being written to a local database, or
+    written to a remote browser via an HTTP cookie.</p>
+
+    <p>This can help provide privacy to user sessions where the contents of
+    the session should be kept private from the user, or where protection is
+    needed against the effects of cross site scripting attacks.</p>
+
+    <p>For more details on the session interface, see the documentation for
+    the <code class="module"><a href="../mod/mod_session.html">mod_session</a></code> module.</p>
+
+</div>
+<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#basicusage">Basic Usage</a></li>
+</ul><h3 class="directives">Directives</h3>
+<ul id="toc">
+<li><img alt="" src="../images/down.gif" /> <a href="#sessioncryptocipher">SessionCryptoCipher</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#sessioncryptodriver">SessionCryptoDriver</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#sessioncryptopassphrase">SessionCryptoPassphrase</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#sessioncryptopassphrasefile">SessionCryptoPassphraseFile</a></li>
+</ul>
+<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_session_crypto">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_session_crypto">Report a bug</a></li></ul><h3>See also</h3>
+<ul class="seealso">
+<li><code class="module"><a href="../mod/mod_session.html">mod_session</a></code></li>
+<li><code class="module"><a href="../mod/mod_session_cookie.html">mod_session_cookie</a></code></li>
+<li><code class="module"><a href="../mod/mod_session_dbd.html">mod_session_dbd</a></code></li>
+<li><a href="#comments_section">Comments</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="basicusage" id="basicusage">Basic Usage</a></h2>
+
+      <p>To create a simple encrypted session and store it in a cookie called
+      <var>session</var>, configure the session as follows:</p>
+
+      <div class="example"><h3>Browser based encrypted session</h3><pre class="prettyprint lang-config">Session On
+SessionCookieName session path=/
+SessionCryptoPassphrase secret</pre>
+</div>
+
+      <p>The session will be encrypted with the given key. Different servers can
+      be configured to share sessions by ensuring the same encryption key is used
+      on each server.</p>
+
+      <p>If the encryption key is changed, sessions will be invalidated
+      automatically.</p>
+
+      <p>For documentation on how the session can be used to store username
+      and password details, see the <code class="module"><a href="../mod/mod_auth_form.html">mod_auth_form</a></code> module.</p>
+
+    </div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="SessionCryptoCipher" id="SessionCryptoCipher">SessionCryptoCipher</a> <a name="sessioncryptocipher" id="sessioncryptocipher">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The crypto cipher to be used to encrypt the session</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SessionCryptoCipher <var>name</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>aes256</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_session_crypto</td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.0 and later</td></tr>
+</table>
+    <p>The <code class="directive">SessionCryptoCipher</code> directive allows the cipher to
+    be used during encryption. If not specified, the cipher defaults to
+    <code>aes256</code>.</p>
+
+    <p>Possible values depend on the crypto driver in use, and could be one of:</p>
+
+    <ul><li>3des192</li><li>aes128</li><li>aes192</li><li>aes256</li></ul>
+
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="SessionCryptoDriver" id="SessionCryptoDriver">SessionCryptoDriver</a> <a name="sessioncryptodriver" id="sessioncryptodriver">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The crypto driver to be used to encrypt the session</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SessionCryptoDriver <var>name</var> <var>[param[=value]]</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>none</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_session_crypto</td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.0 and later</td></tr>
+</table>
+    <p>The <code class="directive">SessionCryptoDriver</code> directive specifies the name of
+    the crypto driver to be used for encryption. If not specified, the driver defaults
+    to the recommended driver compiled into APR-util.</p>
+
+    <p>The <var>NSS</var> crypto driver requires some parameters for configuration,
+    which are specified as parameters with optional values after the driver name.</p>
+
+    <div class="example"><h3>NSS without a certificate database</h3><pre class="prettyprint lang-config">SessionCryptoDriver nss</pre>
+</div>
+
+    <div class="example"><h3>NSS with certificate database</h3><pre class="prettyprint lang-config">SessionCryptoDriver nss dir=certs</pre>
+</div>
+
+    <div class="example"><h3>NSS with certificate database and parameters</h3><pre class="prettyprint lang-config">SessionCryptoDriver nss dir=certs key3=key3.db cert7=cert7.db secmod=secmod</pre>
+</div>
+
+    <div class="example"><h3>NSS with paths containing spaces</h3><pre class="prettyprint lang-config">SessionCryptoDriver nss "dir=My Certs" key3=key3.db cert7=cert7.db secmod=secmod</pre>
+</div>
+
+    <p>The <var>NSS</var> crypto driver might have already been
+    configured by another part of the server, for example from
+    <code>mod_nss</code> or <code class="module"><a href="../mod/mod_ldap.html">mod_ldap</a></code>. If found to
+    have already been configured, a warning will be logged, and the
+    existing configuration will have taken affect.  To avoid this
+    warning, use the noinit parameter as follows.</p>
+
+    <div class="example"><h3>NSS with certificate database</h3><pre class="prettyprint lang-config">SessionCryptoDriver nss noinit</pre>
+</div>
+
+    <p>To prevent confusion, ensure that all modules requiring NSS are configured with
+    identical parameters.</p>
+
+    <p>The <var>openssl</var> crypto driver supports an optional parameter to specify
+    the engine to be used for encryption.</p>
+
+    <div class="example"><h3>OpenSSL with engine support</h3><pre class="prettyprint lang-config">SessionCryptoDriver openssl engine=name</pre>
+</div>
+
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="SessionCryptoPassphrase" id="SessionCryptoPassphrase">SessionCryptoPassphrase</a> <a name="sessioncryptopassphrase" id="sessioncryptopassphrase">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The key used to encrypt the session</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SessionCryptoPassphrase <var>secret</var> [ <var>secret</var> ... ] </code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>none</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_session_crypto</td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.0 and later</td></tr>
+</table>
+    <p>The <code class="directive">SessionCryptoPassphrase</code> directive specifies the keys
+    to be used to enable symmetrical encryption on the contents of the session before
+    writing the session, or decrypting the contents of the session after reading the
+    session.</p>
+
+    <p>Keys are more secure when they are long, and consist of truly random characters.
+    Changing the key on a server has the effect of invalidating all existing sessions.</p>
+
+    <p>Multiple keys can be specified in order to support key rotation. The first key
+    listed will be used for encryption, while all keys listed will be attempted for
+    decryption. To rotate keys across multiple servers over a period of time, add a new
+    secret to the end of the list, and once rolled out completely to all servers, remove
+    the first key from the start of the list.</p>
+
+    <p>As of version 2.4.7 if the value begins with <var>exec:</var> the resulting command
+    will be executed and the first line returned to standard output by the program will be
+    used as the key.</p>
+<div class="example"><pre>#key used as-is
+SessionCryptoPassphrase secret
+
+#Run /path/to/program to get key
+SessionCryptoPassphrase exec:/path/to/program
+
+#Run /path/to/otherProgram and provide arguments
+SessionCryptoPassphrase "exec:/path/to/otherProgram argument1"</pre></div>
+
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="SessionCryptoPassphraseFile" id="SessionCryptoPassphraseFile">SessionCryptoPassphraseFile</a> <a name="sessioncryptopassphrasefile" id="sessioncryptopassphrasefile">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>File containing keys used to encrypt the session</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SessionCryptoPassphraseFile <var>filename</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>none</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_session_crypto</td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.0 and later</td></tr>
+</table>
+    <p>The <code class="directive">SessionCryptoPassphraseFile</code> directive specifies the
+    name of a configuration file containing the keys to use for encrypting or decrypting
+    the session, specified one per line. The file is read on server start, and a graceful
+    restart will be necessary for httpd to pick up changes to the keys.</p>
+
+    <p>Unlike the <code class="directive">SessionCryptoPassphrase</code> directive, the keys are
+    not exposed within the httpd configuration and can be hidden by protecting the file
+    appropriately.</p>
+
+    <p>Multiple keys can be specified in order to support key rotation. The first key
+    listed will be used for encryption, while all keys listed will be attempted for
+    decryption. To rotate keys across multiple servers over a period of time, add a new
+    secret to the end of the list, and once rolled out completely to all servers, remove
+    the first key from the start of the list.</p>
+
+
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_session_crypto.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_session_crypto.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
+</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
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+\ No newline at end of file
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-07 02:04:06 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-07 02:04:06 +0000
commit	5dff2d61cc1c27747ee398e04d8e02843aabb1f8 (patch)
tree	a67c336b406c8227bac912beb74a1ad3cdc55100 /docs/manual/mod/mod_session_crypto.html.en
parent	Initial commit. (diff)
download	apache2-5dff2d61cc1c27747ee398e04d8e02843aabb1f8.tar.xz apache2-5dff2d61cc1c27747ee398e04d8e02843aabb1f8.zip