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Title : Authentication between the Inbound Proxy and the UAS for Protecting SPIT in the Session Initiation Protocol (SIP)
Author(s) : S. Jung, et al.
Filename : draft-jung-sipping-authentication-spit-00.txt
Pages : 10
Date : 2006-10-17
This memo proposes to add a digest message authentication scheme
between the inbound proxy and the UAS for protecting SPIT. Spammers
can directly send SIP calls (such as call spam and IM spam) to the
UAS using P2P call signaling. For rejecting the SPIT, the UAS should
be able to verify that the SIP messages are forwarded by the proxy
server, not directly from spammers. By applying the message digest
scheme similar to the HTTP digest, the UAS processes the request
after assuring that the INVITE message comes through the inbound
proxy server. The main advantage of this scheme is to protect SPIT by
adding a very simple message authentication scheme between the proxy
server and the UAS.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-jung-sipping-authentication-spit-00.txt
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