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Re: [TLS] Suite B compliance of TLS 1.2

Vipul Gupta <Vipul.Gupta@sun.com> Fri, 28 July 2006 01:35 UTC

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Date: Thu, 27 Jul 2006 18:36:16 -0700
From: Vipul Gupta <Vipul.Gupta@sun.com>
Subject: Re: [TLS] Suite B compliance of TLS 1.2
In-reply-to: <44C96749.4040604@redhat.com>
To: Wan-Teh Chang <wtchang@redhat.com>
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In RFC 4231 (standards track), we already have a
precedence for the IETF embracing HMAC-SHA-256 etc
so there might not be any controversy after all.

vipul

On Jul 27, 2006, at 6:24 PM, Wan-Teh Chang wrote:

> I'd like to explain why I said it may be controversial
> to define new cipher suites whose MAC algorithm is Suite
> B compliant.
>
> HMAC-SHA-1 is still considered secure in spite of the
> recent collision attack against SHA-1.  So I suspect
> that some people may object to defining new HMAC-SHA-256
> and HMAC-SHA-384 cipher suites simply because HMAC-SHA-1,
> or rather SHA-1, is not in Suite B.
>
> Wan-Teh Chang

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