[Cryptech Core] arm

[Joachim Strömbergson]

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Aloha!

Leif Johansson wrote:
> I believe the "there is an ARM on our prototype board" will be
> enough for now...
> 
> but yes - we should think about this from a technical perspective
> too

FWIW, ARM is increasingly replacing 8 bit MCUs even in very low cost
embedded systems. I'm currently working with these babies (that even
includes TRNG and AES support) and other Cortex M0+ based MCUs. Price is
sub 1 USD:

http://www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1817

Having 32-bit data and operand size is imho baseline and the reason why
when implementing the core wrappers and interfaces, I use 32 bits by
default. (But not for core internal interfaces that instead use the
intrinsic data sizes, for example 128 bits for AES blocks.)

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
========================================================================
 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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