[Cfrg] draft-mcgrew-hash-sigs

Jim Schaad <ietf@augustcellars.com> Wed, 06 February 2019 04:07 UTC

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From: Jim Schaad <ietf@augustcellars.com>
To: <draft-mcgrew-hash-sigs@ietf.org>
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Date: Tue, 5 Feb 2019 20:07:07 -0800
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Subject: [Cfrg] draft-mcgrew-hash-sigs
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In trying to do a fast implementation of this draft I ended up with the
following question:

In section 4.5 there is a byte string append operation between Q and
Cksm(Q).  The problem is that the result of Cksm appears to be a 16-bit
unsigned integer.  Should there be a u16str inserted in the function?

a = coef(Q || u16str(Cksm(Q)), i, w)

Jim