using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading;

using System.Threading.Tasks;

​

public class Program

{

    public static void Main()

    {

        var pwds = GenerateLowSecurityPasswords(4, 10);

        foreach (var p in pwds)

            Console.WriteLine(p);

    }

​

    public static List<String> GenerateLowSecurityPasswords(int numOfChars, int numOfPasswords)

    {

        Random rnd = new Random(DateTime.Now.Millisecond);

        List<String> passwords = new List<String>();

        for (int i = 0; i < numOfPasswords; i++)

        {

            passwords.Add(GenerateLowSecurityPassword(numOfChars, rnd));

        }

​

        return passwords;

    }

​

    private static String GenerateLowSecurityPassword(int numOfChars, Random rnd)

    {

        char[] passwd = new char[numOfChars];

        string allowedChars = "abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUVWXYZ0123456789";

        for (int i = 0; i < numOfChars; i++)

        {

            passwd[i] = allowedChars[rnd.Next(0, allowedChars.Length)];

        }

​

        return new String(passwd);

    }

}