This allows SP to support:
- DH parameter checking
- DH parameter generation
- RSA key generation
Improved performance of sp_mod operation.
Reworked some functions to have one exit point (return statement).
Fixed sp_sub_d().
Changed tests to perform 2048-bit RSA key generation only when using SP
math.
Fixed Intel x86_64 C file to not have DH specific functions available
unless WOLFSSL_HAVE_SP_DH is defined.
Fixed tfm to return an error when t is not the correct size in
fp_isprime_ex().
0bc16d47e2