ec) args=("${args[@]}" -pkeyopt "ec_paramgen_curve:$bits")
args=("${args[@]}" -pkeyopt ec_param_enc:named_curve);;
dsa) args=(-paramfile "$bits");;
+ ed25519) ;;
*) printf "Unsupported key algorithm: %s\n" "$alg" >&2; return 1;;
esac
stderr_onerror \