A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Extensible Messaging and Presence Protocol Working Group of the IETF.
Title : PKIX over Secure HTTP (POSH)
Authors : Matthew Miller
Peter Saint-Andre
Filename : draft-ietf-xmpp-posh-00.txt
Pages : 16
Date : 2014-02-04
Abstract:
Experience has shown that it is extremely difficult to deploy proper
PKIX certificates for TLS in multi-tenanted environments, since
certification authorities will not issue certificates for hosted
domains to hosting services, hosted domains do not want hosting
services to hold their private keys, and hosting services wish to
avoid liability for holding those keys. As a result, domains hosted
in multi-tenanted environments often deploy non-HTTP applications
such as email and instant messaging using certificates that identify
the hosting service, not the hosted domain. Such deployments force
end users and peer services to accept a certificate with an improper
identifier, resulting in obvious security implications. This
document defines two methods that make it easier to deploy
certificates for proper server identity checking in non-HTTP
application protocols. The first method enables the TLS client
associated with a user agent or peer application server to obtain the
end-entity certificate of a hosted domain over secure HTTP as an
alternative to standard PKIX techniques. The second method enables a
hosted domain to securely delegate a non-HTTP application to a
hosting service using redirects provided by HTTPS itself or by a
pointer in a file served over HTTPS at the hosted domain. While this
approach is developed for use in the Extensible Messaging and
Presence Protocol (XMPP) as a Domain Name Association prooftype, it
can be applied to any non-HTTP application protocol.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-xmpp-posh/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-xmpp-posh-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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