Re: [secdir] Secdir review of draft-ietf-avtcore-monarch-17

Qin Wu <bill.wu@huawei.com> Wed, 22 August 2012 06:54 UTC

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From: Qin Wu <bill.wu@huawei.com>
To: Tina TSOU <Tina.Tsou.Zouting@huawei.com>
References: <D9F20FFCA69244C59DB1F3E69C2F48EB@china.huawei.com> <58D08DCC-37CD-4DE9-A574-719F5409153C@huawei.com>
Date: Wed, 22 Aug 2012 14:46:48 +0800
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Cc: The IESG <iesg@ietf.org>, draft-ietf-avtcore-monarch@tools.ietf.org, secdir@ietf.org
Subject: Re: [secdir] Secdir review of draft-ietf-avtcore-monarch-17
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----- Original Message ----- 
  From: Tina TSOU 
  To: Qin Wu 
  Cc: draft-ietf-avtcore-monarch@tools.ietf.org ; secdir@ietf.org ; The IESG 
  Sent: Wednesday, August 22, 2012 12:39 PM
  Subject: Re: [secdir] Secdir review of draft-ietf-avtcore-monarch-17


  Here is what I meant: which parties trust each other? The other parties
  will be excluded from receiving the measurements. What does each case
  imply in terms of requirements for key management?


[Qin]: If the other parties are allowed to receive the measurement, they should be authenticated using SRTP in RFC3711.
If the parties that are trusted access to some RTCP flows but not other, authentication using SRTP in RFC3711 also can be used.
Regarding key managment requirement,  RFC 3711 has already pointed out what key management standards can be used to 
establish an SRTP cryptographic context.