BN_native2bn
b = BN_native2bn(p->data, (int)p->data_size, *val);
BIGNUM *BN_native2bn(const unsigned char *s, int len, BIGNUM *ret);
if (!TEST_ptr(obj->p3 = BN_native2bn(params->data,
|| !TEST_ptr(BN_native2bn(bignumbin, p->return_size, app_p3))
|| !TEST_ptr(BN_native2bn(bignumbin, p->return_size, app_p3))