AES and/or DES cryptography for KL16, or KL15 ?

[peteklammer]

Does Freescale provide or offer C-callable AES and/or DES cryptography functions, optimized for Freescale Kinetis L (Cortex M0) e.g. KL16 or KL15 ?

[Hui_Ma]

Hi Pete,

KL15/KL16 doesn't have hardware cryptographic acceleration unit, which only support software cryptography.

While Freescale doesn't provides related cryptography software so far.

I would recommend customer to use MK11 product, which includes CAU module and Freescale also provide related CAU software lib.

More detailed info, please check below link:

K11_50: Next-Generation Kinetis K11 Baseline 50 MHz MCUs

Wish it helps.

Best regards,
Ma Hui

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[peteklammer]

Well, if we could identify an MK11 that was drop-in replacement for KL16, with same pinout, cost, peripherals, and power, that would be a reasonable suggestion.

[Hui_Ma]

Hi Peter,

MK11 product is better than KL16 product, which also with higher price. MK11 is about 10000 @ US$2.57 each.

Wish it helps.

Best regards,
Ma Hui

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[peteklammer]

“Better” is not a single-dimensional scale in this market. If we plan to make 100K of these, then $2.00 apiece BOM throw is $200,000.00 we don’t get to take home. Not to mention battery life, layout real estate, timing and latency differences between Cortex M0 and M4, etc., etc. Better for you is not better for us.

[Hui_Ma · Accepted solution]

If so, the Cryptographic software library is a choice. I do a search and find below cryptographic software library for your reference:

http://www.discretix.com/accelarators/cryptographic-software-librarys/

OpenSSL: The Open Source toolkit for SSL/TLS

Wish it helps.

Best regards,
Ma Hui

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