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Re: [tram] Stephen Farrell's Discuss on draft-ietf-tram-turn-third-party-authz-13: (with DISCUSS and COMMENT)

"Salz, Rich" <rsalz@akamai.com> Wed, 22 April 2015 02:22 UTC

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From: "Salz, Rich" <rsalz@akamai.com>
To: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>, "Williams, Brandon" <bowill@akamai.com>, Martin Thomson <martin.thomson@gmail.com>
Thread-Topic: [tram] Stephen Farrell's Discuss on draft-ietf-tram-turn-third-party-authz-13: (with DISCUSS and COMMENT)
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Date: Wed, 22 Apr 2015 02:22:07 +0000
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References: <913383AAA69FF945B8F946018B75898A4120E0BD@xmb-rcd-x10.cisco.com> <55369856.7050203@akamai.com> <913383AAA69FF945B8F946018B75898A41214674@xmb-rcd-x10.cisco.com>
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Cc: "rlb@ipv.sx" <rlb@ipv.sx>, "tram-chairs@ietf.org" <tram-chairs@ietf.org>, "tram@ietf.org" <tram@ietf.org>, "Stephen Farrell (stephen.farrell@cs.tcd.ie)" <stephen.farrell@cs.tcd.ie>
Subject: Re: [tram] Stephen Farrell's Discuss on draft-ietf-tram-turn-third-party-authz-13: (with DISCUSS and COMMENT)
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> HKDF https://tools.ietf.org/html/rfc5869 can be used to derive the key for
> SHA1 from 256-bit key

Too complicated.  Just do a SHA1 on the 256 bit key.

--  
Senior Architect, Akamai Technologies
IM: richsalz@jabber.at Twitter: RichSalz

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