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NDefr
Visitor II
October 23, 2019
Question

Hardware accelerated Crypto: AES CTR mode

  • October 23, 2019
  • 0 replies
  • 891 views

I am using multiple MCUs: STM32F733, STM32L433, STM32L443.

In STM32CubeExpansion_Crypto_V3.1.0 I am using the software AES CTR encryption (Inc/AES/CTR/aes_ctr.h). I use AES_CTR_Encrypt_Init / AES_CTR_Encrypt_Append / AES_CTR_Encrypt_Finish methods. This works fine, though I would like to use the hardware AES for the MCU having it (F733, L443).

I did not find a CTR related file in the STM32_Crypto_AccHw folder or some AccHw_AES_CTR_Encrypt* methods.

Is there a way to use the HW acceleration for AES CTR more ?

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