RSA_get0_crt_params
void RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,
RSA_get0_crt_params(key->rsa, NULL, NULL, &rsa_iqmp);
void RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,