> In our application we are accessing BIGNUM member top as bn->top. Now we are trying > > to migrate to OPENSSL 3.0. I am unable to find API to access this member. > > Please let me know if there is any get API to get the “top” member of BIGNUM. Since the structure is opaque, I can't imagine _really_ needing access to ->top since that is a BIGNUM-internal concept. Can you give a MWE for what you are trying to achieve? Cheers, BBB