The IESG has received a request from an individual submitter to consider the following document: - 'Securing Session Initiation Protocol (SIP) based Messaging with S/MIME' <draft-campbell-sip-messaging-smime-03.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2018-10-10. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract Mobile messaging applications used with the Session Initiation Protocol (SIP) commonly use some combination of the SIP MESSAGE method and the Message Session Relay Protocol (MSRP). While these provide mechanisms for hop-by-hop security, neither natively provides end-to-end protection. This document offers guidance on how to provide end-to-end authentication, integrity protection, and confidentiality using the Secure/Multipurpose Internet Mail Extensions (S/MIME). It updates and provides clarifications for RFC 3261, RFC 3428, and RFC 4975. The file can be obtained via https://datatracker.ietf.org/doc/draft-campbell-sip-messaging-smime/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-campbell-sip-messaging-smime/ballot/ No IPR declarations have been submitted directly on this I-D.
