Re: [PATCH] xfrm: fix hmac(sha256) truncation length

From: Herbert Xu
Date: Fri Mar 09 2012 - 08:45:47 EST


On Fri, Mar 09, 2012 at 08:41:10AM -0500, Jarod Wilson wrote:
>
> Okay, I suspected that might be the case. No plans to ever invert that,
> so that userspace has to explicitly set the shorter truncbits for
> backwards compat?

That's up to the userspace implementation. If its configuration
allows explicit trunc bits then just use whatever the user says.
Otherwise it'll have to make a policy decision. For example, a
big warning when upgrading and changing the default to the correct
value.

Cheers,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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