topic s32k1 csec trng prng in S32K

s32k1 csec trng prng

AmitoYao — Tue, 17 May 2022 07:53:07 GMT

I want to know how to generate the trng and prng for s32k144.

Their is only one api called CSEC_DRV_GenerateRND in the sdk drivers.

How to generate the trng and prng separately ? Could you give me a code sample? Thank you.

Re: s32k1 csec trng prng

lukaszadrapa — Wed, 18 May 2022 05:24:19 GMT

Hi Amito,

it's not possible to access TRNG and PRNG separately. There's only one command CMD_RND which is used by SDK function CSEC_DRV_GenerateRND. That's all you can use.

Regards,

Lukas

Re: s32k1 csec trng prng

AmitoYao — Wed, 18 May 2022 06:47:29 GMT

Hi Lukas

If there is only one command CMD_RND, then how to get the trng and prng separately?

Re: s32k1 csec trng prng

lukaszadrapa — Wed, 18 May 2022 10:22:34 GMT

You can get PRNG only. It is not possible to get TRNG.

Regards,

Lukas