[email protected] wrote:
> Just don't laugh, Intel curie, but they are not selling then yet tho..

Heh, now that would be the mother of all drastic design changes :)

Speaking of new chips, NXP aka Freescale have released full
documentation for the KL8x I mentioned a while ago:
http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/l-series/kinetis-kl8x-72-mhz-low-power-secure-microcontrollers-mcus:KL8x

Some observations:

- not available in QFN (only BGA or, if you have the space, LQFP).
  So that puts it beyond the technology range of Anelok Mk 3.

- it has sort of an FPU for Elliptic Curves. While they don't mention
  it explicitly, it seems that it should be able to support also
  Curve25519. This FPU is fully documented.

  Note: the optimized Curve25519 implementation from uNaCl is already
  pretty fast, but hardware acceleration could be interesting in cases
  where more than a very small number of keys has to be used/tried.

- has a memory protection unit. I'd still have to examine the details,
  but this might allow merging cMCU and sMCU functionality on the same
  chip with the security of the resulting solution between the old
  single-MCU design and the current two-MCU design.

So, might be interesting chip for a future design variant.

- Werner

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