WhatsAppApi.WhatsApp.md5 C# (CSharp) Method

        private string md5(string pass)
        {
            MD5 md5 = MD5.Create();
            byte[] dataMd5 = md5.ComputeHash(this.sysEncoding.GetBytes(pass));
            var sb = new StringBuilder();
            for (int i = 0; i < dataMd5.Length; i++)
                sb.AppendFormat("{0:x2}", dataMd5[i]);
            return sb.ToString();
        }