Re: [Gen-art] [avtext] Genart LC review: draft-ietf-avtext-rtp-grouping-taxonomy-06

Magnus and Robert: Is there an action implied here? I see that Magnus 
agreed that there was an oversight in regards to security, but it's not 
clear to me what action (if any) is planned.

Thanks!

Ben.

On 18 May 2015, at 4:38, Magnus Westerlund wrote:

> Robert Sparks skrev den 2015-05-14 21:21:
>
>> Major issues:
>>
>> I'm surprised that there is no mention of how SRTP fits into the
>> vocabulary this
>> document builds. Would it be a mistake for someone to think of SRTP 
>> as what
>> this document calls a transformation? Are there any consequences of
>> using SRTP
>> on one or more of the streams being associated that impact how you 
>> would
>> talk about
>> the association? (There are certainly consequences about which 
>> elements
>> can see
>> into the various streams).
>>
>
> Yes, encryption is clearly a transformation. And there are cases where 
> the order of the encryption and other transformations, like FEC, do 
> matter. Thus, I agree that it is an significant oversight to not 
> include security.
>
> So SRTP is an Securing / Protection (as it is not only Encryption) 
> transformation that operates on Source RTP Streams or Redundancy RTP 
> Streams to create Secured Source RTP Streams or Secured Redundancy RTP 
> Stream.
>
> If one looks on something like ISMAcrypt that operates on a special 
> form of packetized encoded streams, i.e. payload created, but not RTP 
> headers, we get into further distinctions that we so far haven't 
> needed to have.
>
> I don't know how well we must ensure that something like ISMAcrypt is 
> clearly defined, because then we do need to split the RTP 
> packetization transformation into two parts.
>
> Cheers
>
> Magnus Westerlund
>
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