Name: draft-ono-sipping-end2middle-security-03
Title: End-to-middle security in the Session Initiation Protocol(SIP)
State: Active
Authors: Kinji Ono, Shinya Tachimoto
Group: Individual Submissions (none)
Date: 2004-10-25
Some services provided by intermediaries depend on the ability to inspect
the message bodies in the Session Initiation Protocol (SIP). When sensitive
information is included in these bodies, a SIP User Agent (UA) needs to
protect it from all intermediaries except for certain selected ones. This
document proposes a mechanism for securing information passed between an
end user and a selected intermediary using S/MIME. It also proposes
mechanisms for notifying the UA that an intermediary needs to inspect an
S/MIME-secured message body, and that the message body needs to be
transmitted securely.
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