import 'dart:math';

/// Random hex id from a cryptographic RNG, e.g. for per-install identifiers.
String randomHexId({int bytes = 16}) {
  final random = Random.secure();
  return List<int>.generate(
    bytes,
    (_) => random.nextInt(256),
  ).map((b) => b.toRadixString(16).padLeft(2, '0')).join();
}