MAX_FFDH_SIZE
size_t outlen = MAX_FFDH_SIZE;
loopargs[i].secret_ff_a = app_malloc(MAX_FFDH_SIZE, "FFDH secret a");
loopargs[i].secret_ff_b = app_malloc(MAX_FFDH_SIZE, "FFDH secret b");
if (secret_size > MAX_FFDH_SIZE) {