S32KのトピックS32K3 HSE

S32K3 HSE

NiLonghui — Thu, 12 Oct 2023 01:42:27 GMT

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.

Re: S32K3 HSE

lukaszadrapa — Thu, 12 Oct 2023 08:05:02 GMT

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

Re: S32K3 HSE

NiLonghui — Sun, 19 Nov 2023 03:44:56 GMT

Thank you very much!

Re: S32K3 HSE

NiLonghui — Sun, 19 Nov 2023 03:49:33 GMT

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?