[openssl-users] DRBG and prediction resistance

Bala Duvvuri b_duvvuri at yahoo.com
Thu May 7 09:41:17 UTC 2015

Hi All,

What is the reason that the DRBG random generation function- fips_drbg_bytes does not consider prediction resistance as input? 

Inside  fips_drbg_bytes
rv = FIPS_drbg_generate(dctx, out, rcnt, 0, adin, adinlen); //prediction resistance disabled

And as a result the entropy generation callback - get_entropy , is never invoked.

How can we enable prediction resistance when using fips_drbg_bytes?


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