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    SubjectRe: [PATCH] xfrm: fix hmac(sha256) truncation length
    Herbert Xu wrote:
    > On Wed, Mar 07, 2012 at 03:12:37PM -0500, Jarod Wilson wrote:
    >> Commit bc74b0c8af17458ecae77f725e507ab5fd100105 added proper hmac sha384
    >> and sha512 variants with truncation lengths of 192 and 256 respectively,
    >> per RFC4868:
    >
    > No, it was done deliberately to maintain backwards compatibility.
    > Userspace should set the truncbits explicitly from now on.

    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?

    --
    Jarod Wilson
    jarod@redhat.com.




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