Synnefo » Pithos MS Client

using System.IO;

using System.Security.Cryptography;

using System.Text;

public static class Signature

{

    public static string CalculateHash(string path)

    {

        string hash;

        using (var hasher = MD5.Create())

        using (var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, 4096, true))

        {

            var hashBytes = hasher.ComputeHash(stream);

            var hashBuilder = new StringBuilder();

            foreach (byte b in hashBytes)

                hashBuilder.Append(b.ToString("x2").ToLower());

            hash = hashBuilder.ToString();

        }

        return hash;

    }

}