arc4random_stir();
if (key_type_name == NULL) {
if (key_type_name == NULL)
printf("You must specify a key type (-t).\n");
key_type_name = "rsa";
usage();
}
type = key_type_from_name(key_type_name);
if (type == KEY_UNSPEC) {
fprintf(stderr, "unknown key type %s\n", key_type_name);