using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Security.Cryptography;

using System.Text;

​

​

public class CriarMD5

{

    public string RetornarMD5(string Senha)

    {

        using (MD5 md5Hash = MD5.Create())

        {

            return RetonarHash(md5Hash, Senha);

        }

    }

​

    public bool ComparaMD5(string senhabanco, string Senha_MD5)

    {

        using (MD5 md5Hash = MD5.Create())

        {

            var senha = RetornarMD5(senhabanco);

            if (VerificarHash(md5Hash, Senha_MD5, senha))

            {

                return true;

            }

            else

            {

                return false;

            }

        }

    }

​

    private string RetonarHash(MD5 md5Hash, string input)

    {

        byte[] data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input));

​

        StringBuilder sBuilder = new StringBuilder();

​

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

        {

            sBuilder.Append(data[i].ToString("x2"));

        }

​

        return sBuilder.ToString();

    }

​

    private bool VerificarHash(MD5 md5Hash, string input, string hash)

    {

        StringComparer compara = StringComparer.OrdinalIgnoreCase;

​

        if (0 == compara.Compare(input, hash))

        {

            return true;

        }

        else

        {

            return false;

        }

    }

}

public class Program

{

    public static void Main()

    {

        CriarMD5 md5 = new CriarMD5();

        var senhabanco = "827ccb0eea8a706c4c34a16891f84e7b"; 

        var Senha = "12345";

        Boolean ComparaSenha = md5.ComparaMD5(Senha, senhabanco);

        Console.WriteLine(ComparaSenha.ToString());

    }

}