secure_nonce #

A simple nonce generator for Dart using cryptographically secure randomness.

Installation #

dependencies:
  secure_nonce: ^1.0.0

Usage #

import 'package:secure_nonce/secure_nonce.dart';

void main() {
  final nonce = SecureNonce();

  // hex string (32 chars from 16 bytes)
  final token = nonce.generate(16);

  // raw bytes
  final iv = nonce.generateBytes(16);

  // base64 encoded
  final key = nonce.generateBase64(32);

  // url-safe base64
  final urlToken = nonce.generateBase64Url(24);

  // alphanumeric only
  final code = nonce.generateAlphanumeric(8);
}

Methods #

Security #

Uses Random.secure() which pulls from the OS cryptographic RNG (/dev/urandom on Linux, CryptGenRandom on Windows).

License #

MIT