1 Reply Latest reply on Jul 3, 2018 6:58 AM by RaktimR_11

    [SDK 6.2][43903] Unexpected behavior when trying to use secure pRNG (Fortuna)

      Hi all,

      I'm facing the problem of unexpected behavior (mostly system freeze) when trying to initialize secure pRNG (Fortuna) with:




      1. SDK

      2. HW: ISM43903 module


      In my case freeze happens when SDK is internally calling:


      Looks like more or less memory leak, but I might be wrong (didn't trace it carefully).


      I saw that since SDK introduced (enabled by default) alternative crypto functionalities basing on HW (eg. sha256_alt.c etc.).

      Disabling usage of HW crypto alts fixes described problem:




      Is it possible to use HW crypto functionalities using 43903 platform and SDK 6.2?