Re: [AVTCORE] I-D Action: draft-ietf-avtcore-srtp-encrypted-header-ext-02.txt

Hello, all --

This revision of the draft incorporates comments received during WGLC.

The main change in this version of the draft is that it now normatively updates RFC 3711 (SRTP), to state that all future SRTP encryption transforms MUST specify how they're to be used with header extension encryption.

The draft now also specifically defines how it's used with SEED (RFC 5669), as well as the NULL cipher.

There aren't any technical changes to the header extension mechanism, though there are a number of clarifications.  See Appendix B.1 for a full change log.

On Jul 16, 2012, at 12:14 PM, <internet-drafts@ietf.org> wrote:

> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Audio/Video Transport Core Maintenance Working Group of the IETF.
> 
> 	Title           : Encryption of Header Extensions in the Secure Real-Time Transport Protocol (SRTP)
> 	Author(s)       : Jonathan Lennox
> 	Filename        : draft-ietf-avtcore-srtp-encrypted-header-ext-02.txt
> 	Pages           : 15
> 	Date            : 2012-07-16
> 
> Abstract:
>   The Secure Real-Time Transport Protocol (SRTP) provides
>   authentication, but not encryption, of the headers of Real-Time
>   Transport Protocol (RTP) packets.  However, RTP header extensions may
>   carry sensitive information for which participants in multimedia
>   sessions want confidentiality.  This document provides a mechanism,
>   extending the mechanisms of SRTP, to selectively encrypt RTP header
>   extensions in SRTP.
> 
>   This document updates RFC 3711, the Secure Real-Time Transport
>   Protocol specification, to require that all SRTP encryption
>   transforms specify how RTP header extensions are to be encrypted.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-avtcore-srtp-encrypted-header-ext
> 
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-avtcore-srtp-encrypted-header-ext-02
> 
> A diff from previous version is available at:
> http://tools.ietf.org/rfcdiff?url2=draft-ietf-avtcore-srtp-encrypted-header-ext-02
> 
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> _______________________________________________
> Audio/Video Transport Core Maintenance
> avt@ietf.org
> https://www.ietf.org/mailman/listinfo/avt
> 

--
Jonathan Lennox
jonathan@vidyo.com