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Re: [Sip] On the need for a visual identifier of trusted identity - Fwd: I-D Action:draft-york-sip-visual-identifier-trusted-identity-00.txt
Dan,
Thanks for writing this, which I believe is an important part of the
whole SIP Identity discussion going on at present. Even if (as is
likely) the IETF does not standardise such a visual indicator, the IETF
should still give consideration to what sort of indicators are needed
and ensure that its protocols are able to supply sufficient information
for a UA to be able to select the appropriate indicator.
The only other comment I have is that I didn't see anything about the
impact of PSTN interworking. So there would seem to be at least 3
elements that make up the security status of a call:
- the strength of authentication of the peer user or domain;
- the strength of encryption;
- whether the call is via PSTN.
John
> -----Original Message-----
> From: sip-bounces at ietf.org [mailto:sip-bounces at ietf.org] On
> Behalf Of Dan York
> Sent: 08 July 2008 00:46
> To: IETF SIP List
> Subject: [Sip] On the need for a visual identifier of trusted
> identity - Fwd: I-D
> Action:draft-york-sip-visual-identifier-trusted-identity-00.txt
>
> So after writing my response to Paul Kyzivat's response to Cullen, I
> thought about it some more and realized that I ought to
> collect those
> thoughts into an I-D, which I have now submitted. I did so
> primarily
> because I haven't really seen discussion of the end user's
> *experience* of working with "trusted identity" (if I missed such a
> discussion, please feel free to point it out to me). To the person
> using a SIP phone to call another SIP phone, how do they know that
> they can trust the identity of the caller on the other end? If we
> solve the various issues we are discussing related to RFC
> 4474, P-A-I,
> etc., what might the end user experience look like?
>
> As I note in the draft, it's not entirely clear to me that
> the IETF is
> the appropriate body to address this question. It's more of a "user
> interface" question that is more about how to have users
> adopt/accept
> a SIP feature and feels to me like it's something more
> appropriate for
> a more vendor-centric "industry consortium" type of entity.
> Something
> like the SIP Forum or some other similar entity. I'm certainly open
> to comments and feedback along those lines... In the meantime, I
> thought I'd at least throw something out there for discussion.
>
> Thanks,
> Dan
>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
>
> Title : The Importance of a Visual Identifier
> of Trusted
> Identity
> Author(s) : D. York
> Filename : draft-york-sip-visual-identifier-trusted-
> identity-00.txt
> Pages : 9
> Date : 2008-07-07
>
> This document discusses the need for a visual identifier in Session
> Initiation Protocol (SIP) endpoints to indicate to the end user that
> they are speaking with someone whose identity is trusted.
>
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-york-sip-visual-iden
tifier-trusted-identity-00.txt
>
> --
> Dan York, CISSP, Director of Emerging Communication Technology
> Office of the CTO Voxeo Corporation dyork at voxeo.com
> Phone: +1-407-455-5859 Skype: danyork http://www.voxeo.com
> Blogs: http://blogs.voxeo.com http://www.disruptivetelephony.com
>
> Build voice applications based on open standards.
> Find out how at http://www.voxeo.com/free
>
>
>
>
>
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>
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This list is for NEW development of the core SIP Protocol
Use sip-implementors at cs.columbia.edu for questions on current sip
Use sipping at ietf.org for new developments on the application of sip