using System;

using System.Security.Cryptography;

using System.Text;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(Hash512Util.CreateHash512("54321"));

    }

}

​

​

​

public static class Hash512Util

{

    public static string CreateHash512(string @value)

    {

        using (SHA512 shaM = new SHA512Managed())

        {

            byte[] bytes = Encoding.UTF8.GetBytes(@value);

            var hash = shaM.ComputeHash(bytes);

            return ObterStringDeHash(hash);

        }

    }

​

    private static string ObterStringDeHash(byte[] hash)

    {

        StringBuilder result = new StringBuilder();

​

        for (int i = 0; i < hash.Length; i++)

        {

            result.Append(hash[i].ToString("X2"));

        }

​

        return result.ToString();

    }

}

​

​