A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : TLS Inner Application Extension (TLS/IA)
Author(s) : P. Funk, et al.
Filename : draft-funk-tls-inner-application-extension-02.txt
Pages : 32
Date : 2006-3-7
This document defines a new TLS extension called "Inner
Application". When TLS is used with the Inner Application extension
(TLS/IA), additional messages are exchanged after completion of the
TLS handshake, in effect providing an extended handshake prior to
the start of upper layer data communications. Each TLS/IA message
contains an encrypted sequence of Attribute-Value-Pairs (AVPs) from
the RADIUS/Diameter namespace. Hence, the AVPs defined in RADIUS and
Diameter have the same meaning in TLS/AI; that is, each attribute
code point refers to the same logical attribute in any of these
protocols. Arbitrary "applications" may be implemented using the AVP
exchange. Possible applications include EAP or other forms of user
authentication, client integrity checking, provisioning of
additional tunnels, and the like. Use of the RADIUS/Diameter
namespace provides natural compatibility between TLS/IA applications
and widely deployed AAA infrastructures.
It is anticipated that TLS/IA will be used with and without
subsequent protected data communication within the tunnel
established by the handshake. For example, TLS/IA may be used to
secure an HTTP data connection, allowing more robust password-based
user authentication to occur than would otherwise be possible using
mechanisms available in HTTP. TLS/IA may also be used for its
handshake portion alone; for example, EAP-TTLSv1 encapsulates a
TLS/IA handshake in EAP as a means to mutually authenticate a client
and server and establish keys for a separate data connection.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-funk-tls-inner-application-extension-02.txt
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