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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:01:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:01:30 +0000 |
| commit | 6beeb1b708550be0d4a53b272283e17e5e35fe17 (patch) | |
| tree | 1ce8673d4aaa948e5554000101f46536a1e4cc29 /docs/manual/mod/mod_session_crypto.html.en | |
| parent | Initial commit. (diff) | |
| download | apache2-upstream/2.4.57.tar.xz apache2-upstream/2.4.57.zip | |
Adding upstream version 2.4.57.upstream/2.4.57
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'docs/manual/mod/mod_session_crypto.html.en')
| -rw-r--r-- | docs/manual/mod/mod_session_crypto.html.en | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/docs/manual/mod/mod_session_crypto.html.en b/docs/manual/mod/mod_session_crypto.html.en new file mode 100644 index 0000000..8319db4 --- /dev/null +++ b/docs/manual/mod/mod_session_crypto.html.en @@ -0,0 +1,266 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!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=UTF-8" 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="<-" alt="<-" src="../images/left.gif" /></a></div> +<div id="path"> +<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <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"> en </a> | +<a href="../fr/mod/mod_session_crypto.html" hreflang="fr" rel="alternate" title="Français"> fr </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__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_session_crypto">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&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>SessionCryptoCipher 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 class="prettyprint lang-config">#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"><a href="#sessioncryptopassphrase">SessionCryptoPassphrase</a></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"> en </a> | +<a href="../fr/mod/mod_session_crypto.html" hreflang="fr" rel="alternate" title="Français"> fr </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&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed 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 Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div> +<script type="text/javascript"><!--//--><![CDATA[//><!-- +var comments_shortname = 'httpd'; +var comments_identifier = 'http://httpd.apache.org/docs/2.4/mod/mod_session_crypto.html'; +(function(w, d) { + if (w.location.hostname.toLowerCase() == "httpd.apache.org") { + d.write('<div id="comments_thread"><\/div>'); + var s = d.createElement('script'); + s.type = 'text/javascript'; + s.async = true; + s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; + (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); + } + else { + d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); + } +})(window, document); +//--><!]]></script></div><div id="footer"> +<p class="apache">Copyright 2023 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> +<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></div><script type="text/javascript"><!--//--><![CDATA[//><!-- +if (typeof(prettyPrint) !== 'undefined') { + prettyPrint(); +} +//--><!]]></script> +</body></html>
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