internal bool AllDataRequiredIsAvailable(KernelDatabaseBase database)
{
switch (CVMConditionCode)
{
case CVMConditionCode.Always:
return(true);
case CVMConditionCode.IfUnattendedCash:
if (database.IsEmpty(EMVTagsEnum.TERMINAL_TYPE_9F35_KRN.Tag))
{
return(false);
}
else
{
return(true);
}
case CVMConditionCode.IfManualCash:
if (database.IsEmpty(EMVTagsEnum.TERMINAL_TYPE_9F35_KRN.Tag))
{
return(false);
}
if (database.IsEmpty(EMVTagsEnum.POINTOFSERVICE_POS_ENTRY_MODE_9F39_KRN.Tag))
{
return(false);
}
if (database.IsEmpty(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag))
{
return(false);
}
return(true);
case CVMConditionCode.IfNotUnattendedCashAndNotManualCashAndNotPurchaseWithCashBack:
if (database.IsEmpty(EMVTagsEnum.TERMINAL_TYPE_9F35_KRN.Tag))
{
return(false);
}
if (database.IsEmpty(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag))
{
return(false);
}
if (database.IsEmpty(EMVTagsEnum.POINTOFSERVICE_POS_ENTRY_MODE_9F39_KRN.Tag))
{
return(false);
}
return(true);
case CVMConditionCode.IfTerminalSupportstheCVM:
return(true);
case CVMConditionCode.IfPurchaseWithCashBack:
if (database.IsEmpty(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag))
{
return(false);
}
return(true);
case CVMConditionCode.IfTransactionIsInTheApplicationCurrencyAndIsUnderX:
case CVMConditionCode.IfTransactionIsInTheApplicationCurrencyAndIsOverX:
case CVMConditionCode.IfTransactionIsInTheApplicationCurrencyAndIsUnderY:
case CVMConditionCode.IfTransactionIsInTheApplicationCurrencyAndIsOverY:
if (database.IsEmpty(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag))
{
return(false);
}
if (database.IsEmpty(EMVTagsEnum.APPLICATION_CURRENCY_CODE_9F42_KRN.Tag))
{
return(false);
}
if (database.IsEmpty(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN.Tag))
{
return(false);
}
return(true);
default:
throw new EMVProtocolException("invalid CVM ConditionCode in Rule");
}
}
public static void CVMSelection(KernelDatabaseBase database, Func <bool> kernelSupportedCallback)
{
CARDHOLDER_VERIFICATION_METHOD_CVM_RESULTS_9F34_KRN cvmResults = new CARDHOLDER_VERIFICATION_METHOD_CVM_RESULTS_9F34_KRN(database);
//#region support for Refunds pg 177
//byte transactionType = database.Get(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN).Value[0];
//if (transactionType == (byte)TransactionTypeEnum.Refund)
//{
// Do_CVM_14(database, cvmResults);
// return;
//}
//#endregion
APPLICATION_INTERCHANGE_PROFILE_82_KRN aip = new APPLICATION_INTERCHANGE_PROFILE_82_KRN(database);
TERMINAL_VERIFICATION_RESULTS_95_KRN tvr = new TERMINAL_VERIFICATION_RESULTS_95_KRN(database);
KernelCVMEnum cvmEnum = KernelCVMEnum.N_A;
CardHolderVerificationRule cvrCurrentlySelected;
if (aip.Value.OnDeviceCardholderVerificationIsSupported && kernelSupportedCallback.Invoke())
{
#region cvm.2
long aa = Formatting.BcdToLong(database.Get(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN).Value);
long rcvml = Formatting.BcdToLong(database.Get(EMVTagsEnum.READER_CVM_REQUIRED_LIMIT_DF8126_KRN2).Value);
if (aa > rcvml)
#endregion
{
#region cvm.4
cvmEnum = KernelCVMEnum.CONFIRMATION_CODE_VERIFIED;
cvmResults.Value.CVMPerformed = 0x01; //on-device cardholder verification performed
cvmResults.Value.CVMCondition = 0x00;
cvmResults.Value.CVMResult = 0x02; //successful
CommonRoutines.UpdateOutcomeParameterSet(database, cvmEnum);
cvmResults.UpdateDB();
return;
#endregion
}
else
{
#region cvm.3
cvmEnum = KernelCVMEnum.NO_CVM;
cvmResults.Value.CVMPerformed = 0x3F; //No CVM performed
cvmResults.Value.CVMCondition = 0x00;
cvmResults.Value.CVMResult = 0x02; //successful
CommonRoutines.UpdateOutcomeParameterSet(database, cvmEnum);
cvmResults.UpdateDB();
return;
#endregion
}
}
#region cvm.5
if (!aip.Value.CardholderVerificationIsSupported)
#endregion
{
#region cvm.6
cvmEnum = KernelCVMEnum.NO_CVM;
cvmResults.Value.CVMPerformed = 0x3F; //No CVM performed
cvmResults.Value.CVMCondition = 0x00;
cvmResults.Value.CVMResult = 0x00; //unknown
CommonRoutines.UpdateOutcomeParameterSet(database, cvmEnum);
cvmResults.UpdateDB();
return;
#endregion
}
#region cvm.7
if (database.IsNotPresent(EMVTagsEnum.CARDHOLDER_VERIFICATION_METHOD_CVM_LIST_8E_KRN.Tag) ||
database.IsEmpty(EMVTagsEnum.CARDHOLDER_VERIFICATION_METHOD_CVM_LIST_8E_KRN.Tag))
#endregion
{
#region cvm.8
cvmEnum = KernelCVMEnum.NO_CVM;
cvmResults.Value.CVMPerformed = 0x3F; //No CVM performed
cvmResults.Value.CVMCondition = 0x00;
cvmResults.Value.CVMResult = 0x00; //unknown
CommonRoutines.UpdateOutcomeParameterSet(database, cvmEnum);
cvmResults.UpdateDB();
tvr.Value.ICCDataMissing = true;
tvr.UpdateDB();
return;
#endregion
}
#region cvm.9
CARDHOLDER_VERIFICATION_METHOD_CVM_LIST_8E_KRN cvl = new CARDHOLDER_VERIFICATION_METHOD_CVM_LIST_8E_KRN(database);
#endregion
BackToIterate:
CVMListIterationReturn result;
do
{
cvrCurrentlySelected = cvl.Value.CardHolderVerificationRules[database.CVMCurrentlySelectedCounter];
#region cvm.10 cvm.11
result = IterateCVM(database, cvrCurrentlySelected, cvl.Value.AmountX, cvl.Value.AmountY);
#endregion
database.CVMCurrentlySelectedCounter++;
#region cvm.12 cvm.13
} while (database.CVMCurrentlySelectedCounter < cvl.Value.CardHolderVerificationRules.Count &&
result != CVMListIterationReturn.ConditionsMet);
#endregion
if (result != CVMListIterationReturn.ConditionsMet)
{
Do_CVM_14(database, cvmResults);
return;
}
#region cvm.15
if (!cvrCurrentlySelected.IsCVMRecognised())
#endregion
{
#region cvm.16
tvr = new TERMINAL_VERIFICATION_RESULTS_95_KRN(database);
tvr.Value.UnrecognisedCVM = true;
tvr.UpdateDB();
#endregion
}
else
{
#region cvm.17
if (cvrCurrentlySelected.IsSupported(database) && cvrCurrentlySelected.GetCVMCode() != (byte)CVMCode.FailCVMProcessing)
#endregion
{
#region cvm.18 and from EMV Book 3 Section 10.5
switch ((byte)(cvrCurrentlySelected.CVMRule & 0x3F))
{
//Pin processing (U,X,Z) continues in PinProcessing Procedure after CVM Selection
case (byte)CVMCode.EncipheredPINVerifiedOnline:
cvmEnum = KernelCVMEnum.ONLINE_PIN;
cvmResults.Value.CVMResult = 0x00; //unknown
tvr.Value.OnlinePINEntered = true;
break;
case (byte)CVMCode.EncipheredPINVerificationPerformedByICC:
case (byte)CVMCode.PlaintextPINVerificationPerformedByICC:
cvmEnum = KernelCVMEnum.OFFLINE_PIN;
cvmResults.Value.CVMResult = 0x00; //unknown
break;
case (byte)CVMCode.EncipheredPINVerificationPerformedByICCAndSignature_Paper:
case (byte)CVMCode.PlaintextPINVerificationPerformedByICCAndSignature_Paper:
cvmEnum = KernelCVMEnum.COMBO;
cvmResults.Value.CVMResult = 0x00; //unknown
break;
//V in diagram
case (byte)CVMCode.Signature_Paper:
cvmEnum = KernelCVMEnum.OBTAIN_SIGNATURE;
cvmResults.Value.CVMResult = 0x00; //unknown
CommonRoutines.UpdateOutcomeParameterSet(database, true);
break;
//W in diagram
case (byte)CVMCode.NoCVMRequired:
cvmEnum = KernelCVMEnum.NO_CVM;
cvmResults.Value.CVMResult = 0x02; //successful
break;
case (byte)CVMCode.RFU:
cvmEnum = KernelCVMEnum.N_A;
tvr.Value.UnrecognisedCVM = true;
cvmResults.Value.CVMResult = 0x01; //failed
break;
default:
goto BackToIterate;
}
#endregion
cvmResults.Value.CVMPerformed = cvrCurrentlySelected.CVMRule;
cvmResults.Value.CVMCondition = (byte)cvrCurrentlySelected.CVMConditionCode;
cvmResults.UpdateDB();
int depth = 0;
Logger.Log(cvmResults.ToPrintString(ref depth));
CommonRoutines.UpdateOutcomeParameterSet(database, cvmEnum);
tvr.UpdateDB();
return;
}
}
#region cvm.19
if (((byte)cvrCurrentlySelected.CVMConditionCode & 0x40) == (byte)CVMFailureCondition.ApplySucceedingCVRuleIfThisCVMIsUnsuccessful)
#endregion
{
#region cvm.20
if (database.CVMCurrentlySelectedCounter < cvl.Value.CardHolderVerificationRules.Count)
#endregion
{
#region cvm.10
goto BackToIterate;
#endregion
}
else
{
Do22_25(database, cvrCurrentlySelected);
return;
}
}
else
{
Do22_25(database, cvrCurrentlySelected);
return;
}
}
