Re: [Perc] Question on diet Design?

"Paul E. Jones" <paulej@packetizer.com> Thu, 23 March 2017 04:42 UTC

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From: "Paul E. Jones" <paulej@packetizer.com>
To: Eric Rescorla <ekr@rtfm.com>
Cc: perc@ietf.org
Date: Thu, 23 Mar 2017 04:42:07 +0000
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Subject: Re: [Perc] Question on diet Design?
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Eric,

>>I think what you propose would work, but each stream from a given 
>>endpoint would need to have a unique key since we do not want the any 
>>two media flows using the same key. Thus, I think we'd need:
>>   KDF(K_g, ID || stream_id)
>
>The SSRC addresses that, no?

Yeah, SSRC is fine for that.  We just need to ensure it is a part of the 
KDF input.

Paul