openstack/openstack-manuals
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openstack-manuals/doc/admin-guide-cloud/source/keystone_token-binding.rst
Joseph Robinson 8e9507bf9a Moving .rst format files to main admin-guide-cloud folder 
This change moves the .rst files into the main adming-guide-cloud
folder now conversion is complete. changes to the project config
and to the openstack manuals to stop sync of .xml files
are also needed.

Change-Id: I498e8d6ac3cb80da413e23b14a0959abd58e7d79
Implements: blueprint reorganise-user-guides
2015-08-21 09:37:08 +02:00

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Configure Identity service for token binding

Token binding embeds information from an external authentication mechanism, such as a Kerberos server or X.509 certificate, inside a token. By using token binding, a client can enforce the use of a specified external authentication mechanism with the token. This additional security mechanism ensures that if a token is stolen, for example, it is not usable without external authentication.

You configure the authentication types for a token binding in the keystone.conf file:

[token]
bind = kerberos

or

[token]
bind = x509

Currently kerberos and x509 are supported.

To enforce checking of token binding, set the enforce_token_bind option to one of these modes:

  • disabled

    Disables token bind checking.

  • permissive

    Enables bind checking. If a token is bound to an unknown authentication mechanism, the server ignores it. The default is this mode.

  • strict

    Enables bind checking. If a token is bound to an unknown authentication mechanism, the server rejects it.

  • required

    Enables bind checking. Requires use of at least authentication mechanism for tokens.

  • kerberos

    Enables bind checking. Requires use of kerberos as the authentication mechanism for tokens:

    [token]
enforce_token_bind = kerberos
  • x509

    Enables bind checking. Requires use of X.509 as the authentication mechanism for tokens:

    [token]
enforce_token_bind = x509