openstack-manuals/doc/config-reference/identity/section_keystone-token-binding.xml
Andreas Jaeger 7eee093761 Whitespace patrol
Remove extra whitespace that slipped through.

Also, reformat config-reference/identity/section_keystone-token-binding.xml
since it was missing the usual indentations.

Change-Id: I7988f9ccaf738b6c15001947b993f0699e0a04be
2013-12-20 21:24:14 +01:00

57 lines
2.5 KiB
XML

<?xml version="1.0" encoding="UTF-8"?>
<section xmlns="http://docbook.org/ns/docbook"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0"
xml:id="keystone-token-binding">
<title>Configure the Identity Service for token binding</title>
<para>Token binding refers to the practice of embedding
information from external authentication providers (like a
company's Kerberos server) inside the token such that a client may
enforce that the token only be used in conjunction with that
specified authentication. This is an additional security mechanism
as it means that if a token is stolen it will not be usable
without also providing the external authentication.</para>
<para>To activate token binding you must specify the types of
authentication that token binding should be used for in
<filename>keystone.conf</filename>:
<programlisting language="ini">[token]
bind = kerberos</programlisting>
Currently only <literal>kerberos</literal> is supported.</para>
<para>
To enforce checking of token binding the <literal>enforce_token_bind</literal>
parameter should be set to one of the following modes:
<itemizedlist>
<listitem>
<para><literal>disabled</literal> disable token bind
checking</para>
</listitem>
<listitem>
<para><literal>permissive</literal> enable bind checking, if
a token is bound to a mechanism that is unknown to the server
then ignore it. This is the default.</para>
</listitem>
<listitem>
<para><literal>strict</literal> enable bind checking, if a
token is bound to a mechanism that is unknown to the server
then this token should be rejected.</para>
</listitem>
<listitem>
<para><literal>required</literal> enable bind checking and
require that at least 1 bind mechanism is used for
tokens.</para>
</listitem>
<listitem>
<para><literal>named</literal> enable bind checking and
require that the specified authentication mechanism is used:
<programlisting language="ini">[token]
enforce_token_bind = kerberos</programlisting>
</para>
</listitem>
</itemizedlist>
<note><para>Do not set <literal>enforce_token_bind =
named</literal> as there is not an authentication mechanism
called <literal>named</literal>.</para>
</note>
</para>
</section>