public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
if (ResponseData[0] == 0x77)
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_2_77_KRN.Tag);
}
else
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_1_80_KRN.Tag);
}
tlvResponse.Deserialize(ResponseData, 0);
Logger.Log(ToPrintString());
if (ResponseData[0] == 0x80) //format 2
{
SignedApplicationData = TLV.Create(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN.Tag, tlvResponse.Value);
}
if (ResponseData[0] == 0x77) //format 1
{
SignedApplicationData = tlvResponse.Children.Get(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN.Tag);
}
}
public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
if (ResponseData[0] == 0x77)
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_2_77_KRN.Tag);
}
else
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_1_80_KRN.Tag);
}
tlvResponse.Deserialize(ResponseData, 0);
if (!tlvResponse.Tag.IsConstructed)
{
CryptogramInformationData = TLV.Create(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag, GetData(tlvResponse.Value, 0, 1));
ApplicationTransactionCounter = TLV.Create(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag, GetData(tlvResponse.Value, 0 + 1, 2));
ApplicationCryptogram = TLV.Create(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag, GetData(tlvResponse.Value, 0 + 1 + 2, 8));
IssuerApplicationData = TLV.Create(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag, GetData(tlvResponse.Value, 0 + 1 + 2 + 8, 32));
}
else
{
CryptogramInformationData = tlvResponse.Children.Get(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag);
ApplicationTransactionCounter = tlvResponse.Children.Get(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag);
ApplicationCryptogram = tlvResponse.Children.Get(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag);
IssuerApplicationData = tlvResponse.Children.Get(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag);
POSCardholderInteractionInformation = tlvResponse.Children.Get(EMVTagsEnum.POS_CARDHOLDER_INTERACTION_INFORMATION_DF4B_KRN2.Tag);
}
}
protected override TLV GetTLVResponse()
{
if (tlvResponse == null)
{
tlvResponse = TLV.Create(EMVTagsEnum.FILE_CONTROL_INFORMATION_FCI_TEMPLATE_6F_KRN.Tag);
tlvResponse.Deserialize(ResponseData, 0);
}
return(tlvResponse);
}
public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_1_80_KRN.Tag);
tlvResponse.Deserialize(ResponseData, 0);
}
public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
tlvResponse = TLV.Create(EMVTagsEnum.FILE_CONTROL_INFORMATION_FCI_TEMPLATE_6F_KRN.Tag);
tlvResponse.Deserialize(ResponseData, 0);
Logger.Log(ToPrintString());
}
public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
int pos = 0;
TLV.T t = TLV.T.Create(ResponseData, ref pos);
tlvResponse = TLV.Create(t.TagLable);
tlvResponse.Deserialize(ResponseData, 0);
Logger.Log(ToPrintString());
}
public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
if (ResponseData[0] == 0x77)
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_2_77_KRN.Tag);
}
else
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_1_80_KRN.Tag);
}
tlvResponse.Deserialize(ResponseData, 0);
Logger.Log(ToPrintString());
if (!tlvResponse.Tag.IsConstructed) //Format 1 is not used if CDA is performed.
{
CDAPerformed = false;
CryptogramInformationData = TLV.Create(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag, GetData(tlvResponse.Value, 0, 1));
ApplicationTransactionCounter = TLV.Create(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag, GetData(tlvResponse.Value, 0 + 1, 2));
ApplicationCryptogram = TLV.Create(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag, GetData(tlvResponse.Value, 0 + 1 + 2, 8));
IssuerApplicationData = TLV.Create(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag, GetData(tlvResponse.Value, 0 + 1 + 2 + 8, tlvResponse.Value.Length - (0 + 1 + 2 + 8)));
}
else //format 2
{
//CDA Not Performed
if (tlvResponse.Children.IsNotPresent(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN.Tag))
{
CDAPerformed = false;
CryptogramInformationData = tlvResponse.Children.Get(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag);
ApplicationTransactionCounter = tlvResponse.Children.Get(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag);
ApplicationCryptogram = tlvResponse.Children.Get(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag);
IssuerApplicationData = tlvResponse.Children.Get(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag);
POSCardholderInteractionInformation = tlvResponse.Children.Get(EMVTagsEnum.POS_CARDHOLDER_INTERACTION_INFORMATION_DF4B_KRN2.Tag);
}
else//CDA Performed
{
CDAPerformed = true;
CryptogramInformationData = tlvResponse.Children.Get(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag);
ApplicationTransactionCounter = tlvResponse.Children.Get(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag);
SignedDynamicApplicationData = tlvResponse.Children.Get(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN.Tag);
IssuerApplicationData = tlvResponse.Children.Get(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag);
POSCardholderInteractionInformation = tlvResponse.Children.Get(EMVTagsEnum.POS_CARDHOLDER_INTERACTION_INFORMATION_DF4B_KRN2.Tag);
}
}
}
public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
if (ResponseData[0] == 0x80)
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_1_80_KRN.Tag);
}
else
{
tlvResponse = TLV.Create(EMVTagsEnum.RESPONSE_MESSAGE_TEMPLATE_FORMAT_2_77_KRN.Tag);
}
tlvResponse.Deserialize(ResponseData, 0);
Logger.Log(ToPrintString());
}
public override void Deserialize(byte[] response)
{
base.Deserialize(response);
if (!Succeeded)
{
return;
}
tlvResponse = TLV.Create(EMVTagsEnum.READ_RECORD_RESPONSE_MESSAGE_TEMPLATE_70_KRN.Tag);
try
{
tlvResponse.Deserialize(ResponseData, 0);
}
catch
{
tlvResponse = TLV.Create(EMVTagsEnum.READ_RECORD_RESPONSE_MESSAGE_TEMPLATE_70_KRN.Tag);
ResponseData = tlvResponse.Serialize();
}
Logger.Log(ToPrintString());
}
private byte[] DoGPO(byte[] adpu)
{
TLVList db = new TLVList();
EMVGetProcessingOptionsRequest request = new EMVGetProcessingOptionsRequest();
request.Deserialize(adpu);
TLV _83 = TLV.Create(EMVTagsEnum.COMMAND_TEMPLATE_83_KRN.Tag);
_83.Deserialize(request.CommandData, 0);
int pos = 0;
byte[] amount = Formatting.copyOfRange(_83.Value, pos, pos + MAX_AMOUNT_AUTH__LENGTH);
pos = pos + MAX_AMOUNT_AUTH__LENGTH;
byte[] upn = Formatting.copyOfRange(_83.Value, pos, pos + MAX_UNPRED_NUM__LENGTH);
pos = pos + MAX_UNPRED_NUM__LENGTH;
byte[] ttq = Formatting.copyOfRange(_83.Value, pos, pos + MAX_TTQ_LENGTH);
//pos = pos + MAX_TTQ_LENGTH;
db.AddToList(TLV.Create(EMVTagsEnum.TERMINAL_TRANSACTION_QUALIFIERS_TTQ_9F66_KRN.Tag, ttq));
/*
* supported by card and reader (TTQ byte 1 bit 6 set to 1b)
* return 6985 if not
*/
TERMINAL_TRANSACTION_QUALIFIERS_9F66_KRN ttqST = new TERMINAL_TRANSACTION_QUALIFIERS_9F66_KRN(db.Get(EMVTagsEnum.TERMINAL_TRANSACTION_QUALIFIERS_TTQ_9F66_KRN.Tag));
if (!ttqST.Value.EMVModeSupported)
{
return(BitConverter.GetBytes((int)ISO7816ReturnCodes.SW_CONDITIONS_OF_USE_NOT_SATISFIED));
}
/*
* Card action analysis
*/
/*
* Card Risk Management Processing
*/
/*
* Initialize data
*/
//Req H.2 (Initialization of Card Transaction Qualifiers)
//The card shall reset CTQ byte 1 bits 8-7 to 00b (indicating Online PIN Not Required and Signature Not Required).
CARD_TRANSACTION_QUALIFIERS_CTQ_9F6C_KRN3 ctq = new CARD_TRANSACTION_QUALIFIERS_CTQ_9F6C_KRN3();
ctq.Value.OnlinePINRequired = false;
ctq.Value.SignatureRequired = false;
ctq.Value.GoOnlineIfApplicationExpired = true; //hardcoded perso
ctq.Value.GoOnlineIfOfflineDataAuthenticationFailsAndReaderIsOnlineCapable = true; //hardcoded perso
//Req H.3 (Initialization of Issuer Application Data)
//The card shall set the CVR to '03 80 00 00' (indicating Second GENERATE AC not requested)
byte[] cvr = new byte[4];
cvr[Byte1] = 0x03;
cvr[Byte2] = (byte)0x80;
cvr[Byte3] = 0x00;
cvr[Byte4] = 0x00;
//Req H.4 (Initialization of Cryptogram Information Data)
//The card shall reset the Cryptogram Information Data (CID) to '00'.
byte[] cid_9F27 = new byte[1];
cid_9F27[Byte1] = 0x00;
/*
* Application Block Check
*/
//Req H.5 (Application Blocked Check)
//If the application is blocked, then the card shall discontinue processing the command and shall respond with SW1 SW2 = '6985'
/*
* PIN tries exceeded check
*/
/*
* Refunds and Credits Check
*/
/*
* Reader Indicators Check
*/
/*
* Cardholder Verification Method Check
*/
//Req H.6 (CVM Required Check)
//If CVM Required by reader (TTQ byte 2 bit 7 is 1b), then a CVM is required for the
//transaction, and the card shall determine the common CVM to be performed
byte[] capDefault = PersoAndCardStateStorage.CARD_ADDITIONAL_PROCESSES_9F68_KRN.Value;
if (ttqST.Value.CVMRequired)
{
//Req H.7 (Determine Common CVM)
//If a CVM is required for the transaction, then the card shall attempt to select a
//common CVM supported by both itself and the reader, as defined in this requirement.
//If there is more than one CVM supported by both the card and the reader, the
//selected CVM is chosen based on the following defined CVM hierarchy: 1) Online
//PIN, 2) Signature.
if (isCapPersonalized)
{
//If CVM Required by reader (TTQ byte 2 bit 7 is 1b), then a CVM is required for the
//transaction, and the card shall determine the common CVM to be performed.
if (ttqST.Value.CVMRequired)
{
//Online PIN supported by reader (TTQ byte 1 bit 3 is 1b) and either
//Online PIN supported by card for domestic transactions (CAP byte 3 bit 8 is 1b)
//or Online PIN supported by card for international transactions (CAP byte 3 bit 7 is 1b)
if (ttqST.Value.OnlinePINSupported && Formatting.GetBitPosition(capDefault[Byte3], Bit8 + 1) || Formatting.GetBitPosition(capDefault[Byte3], Bit7 + 1))
{
//Then the card shall indicate Online PIN Required (set CTQ byte 1 bit 8 to 1b)
ctq.Value.OnlinePINRequired = true;
//Else, if both of the following are true
}
else if (ttqST.Value.OfflineDataAuthenticationForOnlineAuthorizationsSupported && Formatting.GetBitPosition(capDefault[Byte3], Bit5 + 1))
{
ctq.Value.GoOnlineIfOfflineDataAuthenticationFailsAndReaderIsOnlineCapable = true;
}
else
{
return(BitConverter.GetBytes((int)ISO7816ReturnCodes.SW_DATA_INVALID));
}
}
}
else
{
//if Signature is not supported by the reader (TTQ byte 1 bit 2 is 0b), then the card
//shall discontinue processing and respond to the GPO command with SW1 SW2 = '6984'
if (!ttqST.Value.SignatureSupported)
{
return(BitConverter.GetBytes((int)ISO7816ReturnCodes.SW_DATA_INVALID));
}
}
}
/*
* Domestic Velocity Checking
*/
/*
* International Velocity Checking
*/
/*
* Contactless Transaction Counter Velocity Checking
*/
/*
* Transaction Disposition
*/
//Req H.8 (Online)
//Indicate Authorization Request Cryptogram returned (set CVR byte 2 bits 6-5
//to 10b and set CID bits 8-7 to 10b).
Formatting.SetBitPosition(ref cvr[Byte2], true, Bit6 + 1);
Formatting.SetBitPosition(ref cvr[Byte2], false, Bit5 + 1);
Formatting.SetBitPosition(ref cid_9F27[Byte1], true, Bit8 + 1);
Formatting.SetBitPosition(ref cid_9F27[Byte1], false, Bit7 + 1);
//Increment the Application Transaction Counter (ATC) by one. The ATC shall be
//incremented prior to the performance of any cryptographic operations.
//If incrementing the ATC results in the ATC reaching its maximum value, then the
//application shall be permanently blocked, Req 6.7 (Application Permanently
//Blocked), and shall respond to the GPO command with error SW1 SW2 = '6985'
//Increment the Application Transaction Counter (ATC) by one. The ATC shall be
//incremented prior to the performance of any cryptographic operations
TLV atc_9F36 = PersoAndCardStateStorage.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN;
if (atc_9F36.Value[0] == 0xFF)
{
return(BitConverter.GetBytes((int)ISO7816ReturnCodes.SW_CONDITIONS_OF_USE_NOT_SATISFIED));
}
else
{
if (atc_9F36.Value[1] == 0xFF)
{
atc_9F36.Value[0] = (byte)(atc_9F36.Value[0] + 1);
atc_9F36.Value[1] = 0x00;
}
else
{
atc_9F36.Value[1] = (byte)(atc_9F36.Value[1] + 1);
}
}
//Construct the Issuer Application Data. If an Issuer Discretionary Data Option (IDD
//Option) is supported (see Appendix E), it shall be constructed and the MAC
//generated (if applicable).
//Only Option 0 supported, IDD already included during perso
//If the card is capable of performing fDDA and all of the following are true:
//the card supports fDDA for Online Authorizations (AIP byte 1 bit 6 is 1b for the
//"Online (with ODA)" GPO response)
//and ODA for Online Authorizations supported by card (CAP byte 2 bit 6 is 0b)
//and ODA for Online Authorizations supported by reader (TTQ byte 1 bit 1 is 1b)
//Then the card shall construct the Card Authentication Related Data and generate
//the Signed Dynamic Application Data (tag '9F4B'). The Signed Dynamic
//Application Data shall be generated as defined in Appendix A.
byte[] iapDefault = PersoAndCardStateStorage.APPLICATION_INTERCHANGE_PROFILE_82_KRN.Value;
if (Formatting.GetBitPosition(iapDefault[Byte1], Bit6 + 1) && !Formatting.GetBitPosition(capDefault[Byte2], Bit6 + 1) &&
ttqST.Value.OfflineDataAuthenticationForOnlineAuthorizationsSupported)
{
//fdda not supported
return(BitConverter.GetBytes((int)ISO7816ReturnCodes.SW_CONDITIONS_OF_USE_NOT_SATISFIED));
}
//Generate the Application Cryptogram
//The path shall implement support for Cryptogram Version Number 10 and
//Cryptogram Version Number 17, and may implement support for Cryptogram Version
//Number 18 at implementer discretion. The Cryptogram Version to be used for
//cryptogram generation shall be issuer configurable, and indicated by the issuer in the
//Cryptogram Version Number of the Issuer Application Data returned for
//transactions.
//We use only 17 at this stage
//if(tm_CVN[Byte1] != 0x11)
// ISOException.throwIt((short) 0x6984);
//9F10 IAD Byte 5 (IAD byte 5 is CVR byte 2) from card
TLV iad_9F10 = PersoAndCardStateStorage.ISSUER_APPLICATION_DATA_9F10_KRN;
iad_9F10.Value[Byte5] = cvr[Byte2];
//9F02 Amount, Authorized from terminal via pdol
//9F37 Unpredictable Number from terminal via pdol
//9F36 ATC from card
//9F10 IAD Byte 5 (IAD byte 5 is CVR byte 2) from card
byte[] crytogram_9F26 = generateCryptogram17(PersoAndCardStateStorage.ICC_MK,
Formatting.ConcatArrays(amount, upn, atc_9F36.Value, new byte[] { iad_9F10.Value[Byte5] }));
//If ODA for Online Authorizations supported by reader (TTQ byte 1 bit 1 is 1b), then
//construct and send the GPO response in [EMV] Format 2 with the data shown in
//Table 6-2 using Condition column "Online (with ODA)".
EMVGetProcessingOptionsResponse response;
//pdol sent back during select is 9F38 09 -> 9F02 06 9F37 04 9F66 04
ctq.Serialize();
db.AddToList(TLV.Create(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN.Tag, amount));
db.AddToList(TLV.Create(EMVTagsEnum.UNPREDICTABLE_NUMBER_9F37_KRN.Tag, upn));
db.AddToList(TLV.Create(EMVTagsEnum.TERMINAL_TRANSACTION_QUALIFIERS_TTQ_9F66_KRN.Tag, ttq));
db.AddToList(TLV.Create(EMVTagsEnum.CARD_TRANSACTION_QUALIFIERS_CTQ_9F6C_KRN3.Tag, ctq.Value.Value));
db.AddToList(TLV.Create(EMVTagsEnum.CRYPTOGRAM_INFORMATION_DATA_9F27_KRN.Tag, cid_9F27));
db.AddToList(TLV.Create(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag, crytogram_9F26));
TLV sdad = TLV.Create(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN.Tag);
sdad.Val.PackValue(15);
db.AddToList(sdad);
db.AddToList(atc_9F36);
db.AddToList(iad_9F10);
if (ttqST.Value.OfflineDataAuthenticationForOnlineAuthorizationsSupported)
{
//only diff is to add empty 9F4B SDAD
response = genGPOResponse(true, db);
}
//Else (TTQ byte 1 bit 1 is 0b), construct and send the GPO response in [EMV]
//Format 2 with the data shown in Table 6-2 using Condition column "Online and
//Decline (without ODA)".
else
{
response = genGPOResponse(false, db);
}
//Note: The Available Offline Spending Amount (tag '9F5D') is not supported
return(response.Serialize());
}