Re: [stir] I-D Action: draft-ietf-stir-passport-divert-05.txt

["Peterson, Jon" <[e-mail]>]

Hello,

There's been a lot ongoing industry interest in the diversion mechanism for PASSporT - enough that it has been kind of a moving target since the last IETF. But here is a revision which has a few major changes:

First, the mechanism is now split into two PASSporT types: "div" and "div-o." The first is for inbound SIP, and is non-nested - it requires multiple Identity headers. The second, "div-o", uses the "opt" element to allow PASSporT nesting, and thus could be used in out-of-band or non-SIP use cases. Splitting this into two separate PASSporT extensions hopefully avoids the sort of compatibility problems that had been raised as we sort of vacillated between nested and non-nested in the past.

Second, there's a lot more text about authentication and verification service behavior around "div", mostly inspired by some of the ongoing discussions with ATIS about how to make "div" work with SHAKEN. I hope the behavior is much more clear in this version.

There are smaller fixes, but it is a pretty extensive overhaul, and it would benefit from some eyeballs to make sure we're ready to advance with the draft.

Thanks,

Jon Peterson
Neustar, Inc.

On 2/19/19, 1:59 PM, "stir on behalf of [e-mail]" <[e-mail] on behalf of [e-mail]> wrote:

    
    A New Internet-Draft is available from the on-line Internet-Drafts directories.
    This draft is a work item of the Secure Telephone Identity Revisited WG of the IETF.
    
            Title           : PASSporT Extension for Diverted Calls
            Author          : Jon Peterson
    	Filename        : draft-ietf-stir-passport-divert-05.txt
    	Pages           : 16
    	Date            : 2019-02-19
    
    Abstract:
       This document extends PASSporT, which conveys cryptographically-
       signed information about the people involved in personal
       communications, to include an indication that a call has been
       diverted from its original destination to a new one.  This
       information can greatly improve the decisions made by verification
       services in call forwarding scenarios.  Also specified here is an
       encapsulation mechanism for nesting a PASSporT within another
       PASSporT that assists relying parties in some diversion scenarios.
    
    
    The IETF datatracker status page for this draft is:
    https://datatracker.ietf.org/doc/draft-ietf-stir-passport-divert/
    
    There are also htmlized versions available at:
    https://tools.ietf.org/html/draft-ietf-stir-passport-divert-05
    https://datatracker.ietf.org/doc/html/draft-ietf-stir-passport-divert-05
    
    A diff from the previous version is available at:
    https://www.ietf.org/rfcdiff?url2=draft-ietf-stir-passport-divert-05
    
    
    Please note that it may take a couple of minutes from the time of submission
    until the htmlized version and diff are available at tools.ietf.org.
    
    Internet-Drafts are also available by anonymous FTP at:
    ftp://ftp.ietf.org/internet-drafts/
    
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