Entropy Source for Openssl 3.8

Manish Patidar mann.patidar at gmail.com
Sat Jun 24 21:34:15 UTC 2023

I am using Openssl 3.8 on rtos,  we have harware random entropy source for
RNG.   In our env, Openssl used entropy source is not available.

Look like  entropy callback which used to available in earlier versions, is
no more supported.  I am wondering how to plungin hardware entropy to

We are going to use h/w entropy in fips mode also, so we need solution
which works for both mode.

It will be really helpful if someone guide how to use h/w entropy source in
openssl 3.8

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