using System;

using System.Security.Cryptography;

​

public class Program

{

    static void Main(string[] args)

    {

        var buffer = System.Text.Encoding.UTF8.GetBytes("richard");

        Console.WriteLine($"Sha1 gave {HashToString(new SHA1Managed().ComputeHash(buffer))}");

        Console.WriteLine($"Sha256 gave {HashToString(new SHA256Managed().ComputeHash(buffer))}");

        Console.WriteLine($"Sha512 gave {HashToString(new SHA512Managed().ComputeHash(buffer))}");

        Console.WriteLine($"Should give b6oys6fwmheio");

    }

​

    static string HashToString(byte[] hash, int length = 13)

    {

        string result = "";

        for (int i = 1; i <= length; i++)

        {

            var b = hash[i];

            var c = b > 48 && b < 57 ? Convert.ToChar(b) : Convert.ToChar((b % 26) + (byte)'a');

            result += c;

        }

​

        return result;

    }

}