rsa_gen_set_params
static OSSL_FUNC_keymgmt_gen_set_params_fn rsa_gen_set_params;
if (!rsa_gen_set_params(gctx, params))
(void (*)(void))rsa_gen_set_params },
{ OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))rsa_gen_set_params },