WhatsAppApi.WhatsApp.encryptPassword C# (CSharp) Method

        public string encryptPassword()
        {
            if (this.imei.Contains(":"))
            {
                this.imei = this.imei.ToUpper();
                return md5(this.imei + this.imei);
            }
            else
            {
                return md5(new string(this.imei.Reverse().ToArray()));
            }
        }