public ApproverResponseBase DoAuth(ApproverRequestBase requestIn) { bool isMagStripe; EMVApproverRequest request = ((EMVApproverRequest)requestIn); TLV cryptogram = request.EMV_Data.Children.Get(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag); if (cryptogram != null) { isMagStripe = false; } else { isMagStripe = true; } TransactionTypeEnum tt = (TransactionTypeEnum)Formatting.GetEnum(typeof(TransactionTypeEnum), request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag).Value[0]); TransactionBase np; switch (tt) { case TransactionTypeEnum.PurchaseGoodsAndServices: np = new F00_NormalPurchase(); break; case TransactionTypeEnum.PurchaseWithCashback: np = new F08_PurchaseWithCashBack(); break; case TransactionTypeEnum.Refund: np = new F12_MerchandiseReturnAdjustment(); break; default: throw new Exception("Unimplemented TransactionTypeEnum:" + tt); } np.SetHeaderValues(SPDHTransactionCode.NormalPurchase, SPDHMessageType.FinancialTransaction, SPDHMessageSubType.Online, DateTime.Now, "300047", ""); np.Fids.Add(new FID_B_Amount1(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN.Tag).Value))); FIDBase fb_6 = new FIDBase('6', ' ', new byte[0]); np.Fids.Add(fb_6); if (tt == TransactionTypeEnum.PurchaseWithCashback || tt == TransactionTypeEnum.Refund) { np.Fids.Add(new FID_C_Amount2(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.AMOUNT_OTHER_NUMERIC_9F03_KRN.Tag).Value))); } if (isMagStripe) { np.Fids.Add(new FID_q_Track2_Customer(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRACK_2_DATA_9F6B_KRN2.Tag).Value))); fb_6.Children.Add(new FID_6_I_TransactionCurrencyCode(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag).Value))); fb_6.Children.Add(new FID_6_E_POSEntryMode(Formatting.ConvertToHexAscii(new byte[] { 0x91 }))); } else { np.Fids.Add(new FID_q_Track2_Customer(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRACK_2_EQUIVALENT_DATA_57_KRN.Tag).Value))); fb_6.Children.Add(new FID_6_I_TransactionCurrencyCode(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag).Value))); //fb_6.Children.Add(new FID_6_E_POSEntryMode(Formatting.ConvertToHexAscii(new byte[] { 0x07 }))); fb_6.Children.Add(new FID_6_E_POSEntryMode(Formatting.ASCIIStringToByteArray("051"))); } if (!isMagStripe) { List <byte[]> fidBytes = new List <byte[]>(); byte[] smartCardScheme = new byte[] { 0x30, 0x31 }; fidBytes.Add(smartCardScheme); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag).Value)); fidBytes.Add(Formatting.ASCIIStringToByteArray(Formatting.ByteArrayToHexString(request.EMV_Data.Children.Get(EMVTagsEnum.TERMINAL_COUNTRY_CODE_9F1A_KRN.Tag).Value).Substring(1))); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_DATE_9A_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_INTERCHANGE_PROFILE_82_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.UNPREDICTABLE_NUMBER_9F37_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TERMINAL_VERIFICATION_RESULTS_95_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag).Value)); fidBytes.Add(Formatting.ASCIIStringToByteArray(Formatting.ByteArrayToHexString(request.EMV_Data.Children.Get(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag).Value).Substring(1))); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag).Value)); fb_6.Children.Add(new FID_6_O_EMVRequestData(fidBytes.SelectMany(x => x).ToArray())); fidBytes = new List <byte[]>(); fidBytes.Add(smartCardScheme); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_PRIMARY_ACCOUNT_NUMBER_PAN_SEQUENCE_NUMBER_5F34_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.TERMINAL_TYPE_9F35_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.CARDHOLDER_VERIFICATION_METHOD_CVM_RESULTS_9F34_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.APPLICATION_VERSION_NUMBER_TERMINAL_9F09_KRN.Tag).Value)); fidBytes.Add(Formatting.ConvertToHexAscii(request.EMV_Data.Children.Get(EMVTagsEnum.DEDICATED_FILE_DF_NAME_84_KRN.Tag).Value)); fb_6.Children.Add(new FID_6_P_EMVAdditionalRequestData(fidBytes.SelectMany(x => x).ToArray())); } Logger.Log(np.ToPrintString()); bool check = np.Validate(); byte[] received; using (request.TCPClientStream) { request.TCPClientStream.Connect(host, port); received = TCPIPManager.SendTransaction(request.TCPClientStream, np.Serialize()); } int pos = 0; TransactionBase fb; switch (tt) { case TransactionTypeEnum.PurchaseGoodsAndServices: fb = new F00_NormalPurchase(); break; case TransactionTypeEnum.PurchaseWithCashback: fb = new F08_PurchaseWithCashBack(); break; case TransactionTypeEnum.Refund: fb = new F12_MerchandiseReturnAdjustment(); break; default: throw new Exception("Unimplemented TransactionTypeEnum:" + tt); } pos = fb.Deserialize(received, pos); Logger.Log(fb.ToPrintString()); FIDBase responseMessageFid = fb.FindFid(FidMetaList.ResponseDisplay).Get(); string responseMessage = Formatting.ByteArrayToASCIIString(responseMessageFid.Value); bool responseCode; int responseCodeAsNumber = Convert.ToInt32(Formatting.ByteArrayToASCIIString(fb.Header.GetValue(HeaderEntryEnum.ResponseCode))); if (responseCodeAsNumber >= 0 && responseCodeAsNumber <= 10) { responseCode = true; } else { responseCode = false; } FIDBase responseMessage6QFid = fb.FindFid(FidMetaList.EMVResponseData).Get(); string responseMessage6Q = Formatting.ByteArrayToASCIIString(responseMessage6QFid.Value); string smartCardSchemeResponse = responseMessage6Q.Substring(0, 2); string authResponseCode = ""; string issuerAuthData; if (smartCardSchemeResponse == "00") //schem 1 { issuerAuthData = responseMessage6Q.Substring(2); } else //01 == schem 2 { authResponseCode = responseMessage6Q.Substring(2, 2); issuerAuthData = responseMessage6Q.Substring(4); } TLV authcodeTLV = null; if (!String.IsNullOrEmpty(authResponseCode)) { authcodeTLV = TLV.Create(EMVTagsEnum.AUTHORISATION_RESPONSE_CODE_8A_KRN.Tag, Formatting.ASCIIStringToByteArray(authResponseCode)); } TLV issuerAuthDataTLV = TLV.Create(EMVTagsEnum.ISSUER_AUTHENTICATION_DATA_91_KRN.Tag, Formatting.HexStringToByteArray(issuerAuthData)); return(new EMVApproverResponse() { IsApproved = responseCode, ResponseMessage = responseMessage, AuthCode_8A = authcodeTLV, IssuerAuthData_91 = issuerAuthDataTLV }); }