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Status:

PROPOSED STANDARD

Obsoleted by:

RFC 8224

Authors:

J. Peterson
C. Jennings

Stream:

IETF

Source:

sip (rai)

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DOI:  https://doi.org/10.17487/RFC4474

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Abstract

The existing security mechanisms in the Session Initiation Protocol (SIP)are inadequate for cryptographically assuring the identity of the endusers that originate SIP requests, especially in an interdomaincontext. This document defines a mechanism for securely identifyingoriginators of SIP messages. It does so by defining two new SIPheader fields, Identity, for conveying a signature used forvalidating the identity, and Identity-Info, for conveying a referenceto the certificate of the signer. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.