Correct HAL APIs for Crypto AES mode

[Jumshed Akhtar]

Posted on July 12, 2018 at 13:43

Hi, I am trying to use CRYP_AES_GCM example from STM32Cube_FW_F7_V1.11.0 for stm32f769I-eval.  I see, stm32f7xx_hal_cryp.c has two set of APIs. By default the APIs under ' &sharpif defined (CRYP)  ' are enabled. and these APIs seem not supporting GCM mode as HAL_CRYP_Init() is not even setting chaining mode. but 

HAL_CRYP_Init() under

' 

&sharpif defined (AES)  ' has some code to set chaining mode.

Are APIs under 

' 

&sharpif defined (AES)  ' are also well tested?

But Other extended APIs for AES GCM mode are under ' 

&sharpif defined (CRYP)  ' in stm32f7xx_hal_cryp_ex.c  file.

So I  could not conclude which one is right option either ' 

&sharpif defined (CRYP)  ' or ' 

&sharpif defined (AES)  '. Can any one help if some one has used these APIs.

Thanks,

#stm32f7-hal #crypto #crypto-aes-encrypt-stm32 #stm32f769i

[Tesla DeLorean]

Posted on July 12, 2018 at 14:16

You would need an F779 part which support crypto hardware, the F769 is the part without it.

The STM32F769I-EVAL board and the STM32F779I-EVAL share a common BSP and examples.