On Wed, Nov 13, 2013 at 3:03 PM, Christopher Kormanyos
2) Please, please please make them templates suitable for use in *all* systems including 8-bit through 64-bit microcontrollers. Thereby I explicitly mean making the so called "padding length" (of bits in your case) a template parameter. Hash algos with any kind of 64-bit use are can not be sensibly ported to a wide range of micros.
I'm not entirely sure how the padding length changes based on the processor upon which the routine is running. The pad length is spec'd to SHA, which I am sure you know, so I must be missing something here. Nevertheless I am willing to work with you to get things right on e.g., 8-bit micros.
Let me try to add a few details.
[ snip very helpful details] Yes, I see what you are saying now, thanks for the thorough explanation of the issue. I'll go back and chew on this idea, as I like it a lot (and wonder if there are other types that, if made native to the architecture on which the hash is running, would speed it up.) - foster