SecureRandom constructor
      
      SecureRandom(
    
    
- int length
Implementation
SecureRandom(int length)
    : _bytes = Uint8List.fromList(
          List.generate(length, (i) => _generator.nextInt(256)));SecureRandom(int length)
    : _bytes = Uint8List.fromList(
          List.generate(length, (i) => _generator.nextInt(256)));