S32K3 HSE

[NiLonghui]

Will there be a problem if I call HSE's aes encryption and decryption interface in two threads at the same time? Assume that both threads use the same secret key.

[lukaszadrapa · Accepted solution]

Hi @NiLonghui 

due to nature of the HSE interface (Messaging Unit) it is not a problem to call more service requests at the same time. The requests are processed sequentially, not in parallel.
For more details, you can check following sections in the HSE-B Reference Manual:

3.5 The HSE interface
6.4.1 Service execution order

Regards,
Lukas

[NiLonghui]

Thank you for your answer. I also want to ask, can I export the ECC private key stored in HSE to an array in C language?

[NiLonghui]

Thank you very much!