AM3356: Crypto HW Accelerators

Here're some options to consider:
- Use Linux kernel crypto driver as a reference, and port it to bare-metal/RTOS.
https://software-dl.ti.com/processor-sdk-linux/esd/AM335X/latest/exports/docs/linux/Foundational_Components/Kernel/Kernel_Drivers/Crypto/SA2UL_OMAP.html
We don't have ready-to-use bare-metal/RTOS examples on AM335x HW crypto engine.

- Bypass the HW crypto engine, and cross-compile lightweight open-source embedded C libraries like mbed TLS or wolfSSL directly. The AM335x features a Cortex-A8 core running up to 1GHz with an integrated NEON SIMD co-processor. SW execution on a 1GHz ARM core would be compatible to performance of the 200MHz L3 hardware crypto block for small chunks of data or data packets

Best,
-Hong

Dear Hong,

Thanks for your suggestions.

- Documentation of how to use the crypto engine would be the next best thing I suppose.

- Can't by pass the crypto engine. I believe we already have a lightweight TLS implementation but the A8 core is running at 300Mhz due to industrial nature of the product. 
The part we use is AM3356BZCZD60 which limits how fast we can run the core.

We are looking to see if the TLS cipher implementation is implemented to use NEON instruction set which may help.
 

Please send the request via the link to get access to AM335x security resource portal
https://www.ti.com/drr/opn/AM335X-RESTRICTED-SW
Once you have access to the portal, AM335x HW Crypto TRM is accessible here
https://dr-download.ti.com/authenticated/secure/software-development/application-software-framework/MD-578HQ0v4Ir/07_03_00_005/SPRUHN1_AM335x_Crypto_Addendum_10-02-13.pdf

BTW, AM3356BZCZD60 has a maximum CPU clock speed of 600 MHz.

Best,
-Hong