[Cfrg] SRTP with SHA2?

"Severns-Williams, Christine E (Christine)" <Christine.SevernsWilliams@lsi.com> Thu, 30 June 2011 17:40 UTC

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From: "Severns-Williams, Christine E (Christine)" <Christine.SevernsWilliams@lsi.com>
To: "cfrg@irtf.org" <cfrg@irtf.org>
Date: Thu, 30 Jun 2011 13:40:08 -0400
Thread-Topic: SRTP with SHA2?
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Subject: [Cfrg] SRTP with SHA2?
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Hi All,
  I'm not sure this is really the right mail list for this question.  But I see SHA2 being added to many security protocols (IPsec, TLS, etc) and discussion of other algorithms fading such as MD5.

I know SRTP supports AES-CM (128, 192, 256), AES-f8, and there is a draft for AES-CCM and AES-GCM (128 and 256).

Has anyone considered or is looking at using/adding SHA2 to the SRTP protocol?     Just curious.

I know the digest size is larger but it could still be truncated.

Christine Severns                                               Phone: + 1 651-675-2987
System, Processor and Security Architecture      Mobile: + 1 612 309-6969
LSI Corporation                                                 Email: Christine.SevernsWilliams@lsi.com<mailto:Christine.SevernsWilliams@lsi.com>
St. Paul, MN 55120 USA