A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Requirements for IPsec Negotiation in the SIP Framework
Author(s) : M. Saito, S. Fujimoto
Filename : draft-saito-mmusic-ipsec-negotiation-req-01.txt
Pages : 16
Date : 2005-10-21
As the Internet grows, it becomes inevitable even for the general
users to take measures against the security risks such as tapping,
unauthorized access, and so on. For example, we can consider the use
case of networked home appliances which cannot have the rich
calculation resources and may use the dedicated transport protocol
for the media session. In such a case, it is effective to connect
such devices securely using IPsec [1] because it does not require the
rich resources, and is independent of the upper layer protocol. Also
from the viewpoint of implementation, IPsec is not only widespread in
IPv4, but also mandatory in IPv6 which is expected in the networked
home appliances region.
However, it is necessary to set up a lot of option parameters
properly in order to establish the IPsec connection. And it requires
the technical knowledge even if using IKE, which does it
automatically. At least, IKE is not so simple that the general users
who do not know the security well can handle.
By the way, SIP [2] mechanism, which has a function of flexible
negotiation, enables the different applications to connect to each
other easily by negotiating the codec, frame rate, and so on. On the
other hand, we found out the similarity between IPsec configuration
and parameter configuration for media session, and we thought to
negotiate the parameters for IPsec easily with using SIP.
Particularly, if the application itself supports SIP by nature, there
should be more merits.
In this document, we provide some use cases of IPsec communication
systems. Then we explain what kind of IPsec parameters should be
negotiated on SIP. Note that we assumed that the system users are
end-users who are not familiar with IPsec. This document also offers
the candidate methods to realize it, including the existing specs,
and which one we should take among them.
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