using System;

using System.Security.Cryptography;

using System.Text;

public class Program

{

    public static string Sha256(string input)

        {           

            using (var sha = SHA256.Create())

            {

                var bytes = Encoding.UTF8.GetBytes(input);

                PrintByteArray(bytes);

                var hash = sha.ComputeHash(bytes);

​

                return Convert.ToBase64String(hash);

            }

        }

    public static void PrintByteArray(byte[] bytes)

{

    var sb = new StringBuilder("new byte[] { ");

    foreach (var b in bytes)

    {

        sb.Append(b + "");

    }

    sb.Append("}");

    Console.WriteLine(sb.ToString());

}

    public static void Main()

    {

        var input = "15ad8bf87d26f62da953c4e225669e7e236d9fb631d10abdd83dda565486d08a3d26b4776ac99029";

        var hashed = Sha256(input);

        Console.WriteLine("Hashed value is {0}", hashed);

    }

}