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Re: [TLS] Unifying tickets and sessions

Aaron Zauner <azet@azet.org> Thu, 23 October 2014 14:35 UTC

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From: Aaron Zauner <azet@azet.org>
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Date: Thu, 23 Oct 2014 16:35:27 +0200
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Subject: Re: [TLS] Unifying tickets and sessions
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> On 23.10.2014, at 16:22, Viktor Dukhovni <ietf-dane@dukhovni.org> wrote:
> 
> On Thu, Oct 23, 2014 at 03:34:01PM +0200, Aaron Zauner wrote:
> 
>>> Right now, RFC 5077 recommends: AES-128 with a 128-bit key and
>>> HMAC-SHA256 with a 256-bit key
>> 
>> hash functions have n/2 security.
> 
> The n/2 is collision resistance.  Here the hash function is used
> in an HMAC construction.  I don't believe that n/2 applies for
> HMAC-SHA2-256.

oh. that's true.

thanks for pointing that out.

Aaron
> 
> -- 
>    Viktor.
> 
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