private static SignalsEnum EntryPointRA(KernelDatabase database, CardResponse cardResponse, KernelQ qManager, CardQ cardQManager, PublicKeyCertificateManager pkcm, EMVSelectApplicationResponse emvSelectApplicationResponse, Stopwatch sw) { CARDHOLDER_VERIFICATION_METHOD_CVM_RESULTS_9F34_KRN cvr = new CARDHOLDER_VERIFICATION_METHOD_CVM_RESULTS_9F34_KRN(database); EMVGetChallengeResponse response = (EMVGetChallengeResponse)cardResponse.ApduResponse; if (!response.Succeeded) { cvr.Value.CVMResult = 0x01;//failed cvr.UpdateDB(); return(SignalsEnum.WAITING_FOR_CVM_PROCESSING); } //store the challenge byte[] pinChallenge = response.ResponseData; if (cvr.Value.GetCVMPerformed() == CVMCode.EncipheredPINVerificationPerformedByICC || cvr.Value.GetCVMPerformed() == CVMCode.EncipheredPINVerificationPerformedByICCAndSignature_Paper) { string aid = emvSelectApplicationResponse.GetDFName(); string rid = aid.Substring(0, 10); RIDEnum ridEnum = (RIDEnum)Enum.Parse(typeof(RIDEnum), rid); CAPublicKeyCertificate capk = pkcm.GetCAPK(ridEnum, database.Get(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN).Value[0]); if (capk == null) { cvr.Value.CVMResult = 0x01;//failed cvr.UpdateDB(); return(SignalsEnum.WAITING_FOR_CVM_PROCESSING); } string pin = Formatting.ByteArrayToASCIIString(database.Get(EMVTagsEnum.TRANSACTION_PERSONAL_IDENTIFICATION_NUMBER_PIN_DATA_99_KRN.Tag).Value); byte[] pinBlock = PinProcessing.BuildPlainTextPinBlock(pin); //encrypt the pin byte[] encipheredPin = PinProcessing.BuildPinVerifyData(database, capk, pinBlock, pinChallenge); if (encipheredPin == null) { cvr.Value.CVMResult = 0x01;//failed cvr.UpdateDB(); return(SignalsEnum.WAITING_FOR_CVM_PROCESSING); } //fire off verify for enciphered pin EMVVerifyRequest request = new EMVVerifyRequest(VerifyCommandDataQualifier.Enciphered_PIN, encipheredPin); cardQManager.EnqueueToInput(new CardRequest(request, CardinterfaceServiceRequestEnum.ADPU)); } //verify message for plain text pin fired in waiting for pin response return(SignalsEnum.WAITING_FOR_VERIFY); }
public static SignalsEnum DoCDA9_10_1(Kernel2Database database, KernelQ qManager, PublicKeyCertificateManager publicKeyCertificateManager, CardQ cardQManager, CardResponse cardResponse) { CAPublicKeyCertificate capk = publicKeyCertificateManager.GetCAPK(RIDEnum.A000000004, database.Get(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN).Value[0]); if (capk == null) { #region 9_10.1 return(DoPart_F(database, qManager, cardResponse)); #endregion } else { #region 9_10.2 IDS_STATUS_DF8128_KRN2 ids = new IDS_STATUS_DF8128_KRN2(database); TERMINAL_VERIFICATION_RESULTS_95_KRN tvr = new TERMINAL_VERIFICATION_RESULTS_95_KRN(database); if (ids.Value.IsRead) #endregion { bool successIDSRead = false; #region 9_10.2.2 if (tvr.Value.RelayResistancePerformedEnum == RelayResistancePerformedEnum.RRP_PERFORMED) #endregion { #region 9_10.3.1 successIDSRead = VerifySDAD_Summaries_CheckRelayData_9_10__3_1(database, capk, cardResponse); #endregion } else { #region 9_10.3 successIDSRead = VerifySDAD_Summaries_9_10__3(database, capk, cardResponse); #endregion } #region 9_10.3.5 if (!successIDSRead) #endregion { return(DoPart_F(database, qManager, cardResponse)); } else { #region 9_10.8 string dbds1 = Formatting.ByteArrayToHexString(database.Get(EMVTagsEnum.DS_SUMMARY_1_9F7D_KRN2).Value); if (!database.IsNotEmpty(EMVTagsEnum.DS_SUMMARY_2_DF8101_KRN2.Tag)) #endregion { #region 9_10.9 return(DoInvalidResponsePart_C(database, qManager, L1Enum.NOT_SET, L2Enum.CARD_DATA_MISSING, L3Enum.NOT_SET)); #endregion } #region 9_10.10 string dbds2 = Formatting.ByteArrayToHexString(database.Get(EMVTagsEnum.DS_SUMMARY_2_DF8101_KRN2).Value); if (dbds1 != dbds2) #endregion { #region 9_10.11 return(DoInvalidResponsePart_C(database, qManager, L1Enum.NOT_SET, L2Enum.IDS_READ_ERROR, L3Enum.NOT_SET)); #endregion } #region 9_10.12 byte dsss = database.Get(EMVTagsEnum.DS_SUMMARY_STATUS_DF810B_KRN2).Value[0]; dsss = (byte)(dsss | 0x80); //set succesful read database.Get(EMVTagsEnum.DS_SUMMARY_STATUS_DF810B_KRN2).Value[0] = dsss; #endregion #region 9_10.13 if (!ids.Value.IsWrite) #endregion { #region 9_10.70 return(DoPart_E(database, qManager, cardQManager)); #endregion } else { #region 9_10.14 if (!database.IsPresent(EMVTagsEnum.DS_SUMMARY_3_DF8102_KRN2.Tag)) #endregion { #region 9_10.15 return(DoInvalidResponsePart_C(database, qManager, L1Enum.NOT_SET, L2Enum.CARD_DATA_MISSING, L3Enum.NOT_SET)); #endregion } else { #region 9_10.16 string dbds3 = Formatting.ByteArrayToHexString(database.Get(EMVTagsEnum.DS_SUMMARY_3_DF8102_KRN2).Value); if (dbds2 == dbds3) #endregion { #region 9_10.18 byte dsodsifr = database.Get(EMVTagsEnum.DS_ODS_INFO_FOR_READER_DF810A_KRN2).Value[0]; if ((dsodsifr & 0x02) == 0x02) //stop if write set #endregion { #region 9_10.19 return(DoInvalidResponsePart_D(database, qManager, L1Enum.NOT_SET, L2Enum.IDS_WRITE_ERROR, L3Enum.NOT_SET)); #endregion } else { return(DoPart_E(database, qManager, cardQManager)); } } else { #region 9_10.17 dsss = (byte)(dsss | 0x40); //set succesful write database.Get(EMVTagsEnum.DS_SUMMARY_STATUS_DF810B_KRN2).Value[0] = dsss; return(DoPart_E(database, qManager, cardQManager)); #endregion } } } } } else { bool successIDSNotRead = false; #region 9_10.2.1 if (tvr.Value.RelayResistancePerformedEnum == RelayResistancePerformedEnum.RRP_PERFORMED) #endregion { #region 9_10.4.1 successIDSNotRead = VerifySDAD_CheckRelayData_9_10__4_1(database, capk, cardResponse); #endregion } else { #region 9_10.4 successIDSNotRead = VerifySDAD_9_10__4(database, capk, cardResponse); #endregion } #region 9_10.6 if (!successIDSNotRead) #endregion { return(DoPart_F(database, qManager, cardResponse)); } else { return(DoPart_E(database, qManager, cardQManager)); } } } }
private static SignalsEnum DoCDAPart_A(Kernel2Database database, KernelQ qManager, PublicKeyCertificateManager publicKeyCertificateManager, CardQ cardQManager, CardResponse cardResponse) { #region 11.40 CAPublicKeyCertificate capk = publicKeyCertificateManager.GetCAPK(RIDEnum.A000000004, database.Get(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN).Value[0]); #endregion if (capk == null) { #region 11.46 return(DoPart_F(database, qManager, cardResponse)); #endregion } else { #region 11.41 IDS_STATUS_DF8128_KRN2 ids = new IDS_STATUS_DF8128_KRN2(database); TERMINAL_VERIFICATION_RESULTS_95_KRN tvr = new TERMINAL_VERIFICATION_RESULTS_95_KRN(database); if (ids.Value.IsRead) #endregion { bool successIDSRead = false; #region 11.41.2 if (tvr.Value.RelayResistancePerformedEnum == RelayResistancePerformedEnum.RRP_PERFORMED) #endregion { #region 11.42.1 successIDSRead = VerifySDAD_Summaries_CheckRelayData_42_1(database, capk, cardResponse); #endregion } else { #region 11.42 successIDSRead = VerifySDAD_Summaries_42(database, capk, cardResponse); #endregion } if (!successIDSRead) { #region 11.46 return(DoPart_F(database, qManager, cardResponse)); #endregion } else { #region return(DoPart_E(database, qManager, cardQManager)); #endregion } } else { bool successIDSNotRead = false; #region 11.41.1 if (tvr.Value.RelayResistancePerformedEnum == RelayResistancePerformedEnum.RRP_PERFORMED) #endregion { #region 11.43.1 successIDSNotRead = VerifySDAD_CheckRelayData_43_1(database, capk, cardResponse); #endregion } else { #region 11.43 successIDSNotRead = VerifySDAD_43(database, capk, cardResponse); #endregion } if (!successIDSNotRead) { #region 11.46 return(DoPart_F(database, qManager, cardResponse)); #endregion } else { #region 11.47 IDS_STATUS_DF8128_KRN2.IDS_STATUS_DF8128_KRN2_VALUE idsV = new IDS_STATUS_DF8128_KRN2.IDS_STATUS_DF8128_KRN2_VALUE(EMVTagsEnum.IDS_STATUS_DF8128_KRN2.DataFormatter); idsV.Deserialize(database.TornTempRecord.Children.Get(EMVTagsEnum.IDS_STATUS_DF8128_KRN2.Tag).Value, 0); string dbds1 = Formatting.ByteArrayToHexString(database.Get(EMVTagsEnum.DS_SUMMARY_1_9F7D_KRN2).Value); if (idsV.IsWrite) #endregion { #region 11.48 string ttrds1 = Formatting.ByteArrayToHexString(database.TornTempRecord.Children.Get(EMVTagsEnum.DS_SUMMARY_1_9F7D_KRN2.Tag).Value); if (dbds1 != ttrds1) #endregion { #region 11.49 return(DoInvalidResponsePart_C(database, qManager, cardResponse, KernelMessageidentifierEnum.N_A, L1Enum.NOT_SET, L2Enum.IDS_READ_ERROR, L3Enum.NOT_SET)); #endregion } } #region 11.50 if (!database.IsPresent(EMVTagsEnum.DS_SUMMARY_2_DF8101_KRN2.Tag)) #endregion { #region 11.51 return(DoInvalidResponsePart_C(database, qManager, cardResponse, KernelMessageidentifierEnum.N_A, L1Enum.NOT_SET, L2Enum.CARD_DATA_MISSING, L3Enum.NOT_SET)); #endregion } #region 11.52 string dbds2 = Formatting.ByteArrayToHexString(database.Get(EMVTagsEnum.DS_SUMMARY_2_DF8101_KRN2).Value); if (dbds1 != dbds2) #endregion { #region 11.53 return(DoInvalidResponsePart_C(database, qManager, cardResponse, KernelMessageidentifierEnum.N_A, L1Enum.NOT_SET, L2Enum.IDS_READ_ERROR, L3Enum.NOT_SET)); #endregion } #region 11.54 byte dsss = database.Get(EMVTagsEnum.DS_SUMMARY_STATUS_DF810B_KRN2).Value[0]; dsss = (byte)(dsss | 0x80); //set succesful read database.Get(EMVTagsEnum.DS_SUMMARY_STATUS_DF810B_KRN2).Value[0] = dsss; #endregion #region 11.55 if (!ids.Value.IsWrite) #endregion { #region 11.110 return(DoPart_E(database, qManager, cardQManager)); #endregion } else { #region 11.56 if (!database.IsPresent(EMVTagsEnum.DS_SUMMARY_3_DF8102_KRN2.Tag)) #endregion { #region 11.57 return(DoInvalidResponsePart_C(database, qManager, cardResponse, KernelMessageidentifierEnum.N_A, L1Enum.NOT_SET, L2Enum.CARD_DATA_MISSING, L3Enum.NOT_SET)); #endregion } else { #region 11.58 string dbds3 = Formatting.ByteArrayToHexString(database.Get(EMVTagsEnum.DS_SUMMARY_3_DF8102_KRN2).Value); if (dbds2 == dbds3) #endregion { #region 11.60 byte dsodsifr = database.Get(EMVTagsEnum.DS_ODS_INFO_FOR_READER_DF810A_KRN2).Value[0]; if ((dsodsifr & 0x02) == 0x02) //stop if write set #endregion { #region 11.61 CommonRoutines.UpdateErrorIndication(database, cardResponse, L1Enum.NOT_SET, L2Enum.IDS_WRITE_ERROR, L3Enum.NOT_SET); #endregion return(DoInvalidResponsePart_D(database, qManager)); } else { return(DoPart_E(database, qManager, cardQManager)); } } else { #region 11.59 dsss = (byte)(dsss | 0x40); //set succesful write database.Get(EMVTagsEnum.DS_SUMMARY_STATUS_DF810B_KRN2).Value[0] = dsss; return(DoPart_E(database, qManager, cardQManager)); #endregion } } } } } } }
private static bool CheckMandatoryFields(Kernel3Database database, PublicKeyCertificateManager pkcm) { TLV ttqCheck = database.Get(EMVTagsEnum.TERMINAL_TRANSACTION_QUALIFIERS_TTQ_9F66_KRN); if (ttqCheck == null) { return(false); } TERMINAL_TRANSACTION_QUALIFIERS_9F66_KRN ttq = new TERMINAL_TRANSACTION_QUALIFIERS_9F66_KRN(database); //Reader if (database.IsNotPresent(EMVTagsEnum.AMOUNT_AUTHORISED_NUMERIC_9F02_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.AMOUNT_OTHER_NUMERIC_9F03_KRN.Tag)) { return(false); } //if (database.IsNotPresent(EMVTagsEnum.APPLICATION_IDENTIFIER_AID_TERMINAL_9F06_KRN.Tag)) return false; //if (database.IsNotPresent(EMVTagsEnum.MERCHANT_NAME_AND_LOCATION_9F4E_KRN.Tag)) return false; if (database.IsNotPresent(EMVTagsEnum.TRANSACTION_CURRENCY_CODE_5F2A_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.TRANSACTION_DATE_9A_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.TRANSACTION_TYPE_9C_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.TERMINAL_COUNTRY_CODE_9F1A_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.UNPREDICTABLE_NUMBER_9F37_KRN.Tag)) { return(false); } //Card //if (database.IsNotPresent(EMVTagsEnum.CARD_TRANSACTION_QUALIFIERS_CTQ_9F6C_KRN3.Tag)) return false; //CARD_TRANSACTION_QUALIFIERS_CTQ_9F6C_KRN3 ctq = new CARD_TRANSACTION_QUALIFIERS_CTQ_9F6C_KRN3(database); //if (database.IsNotPresent(EMVTagsEnum.APPLICATION_FILE_LOCATOR_AFL_94_KRN.Tag)) return false; //if (database.IsNotPresent(EMVTagsEnum.APPLICATION_DEDICATED_FILE_ADF_NAME_4F_KRN.Tag)) return false; if (database.IsNotPresent(EMVTagsEnum.APPLICATION_INTERCHANGE_PROFILE_82_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.APPLICATION_TRANSACTION_COUNTER_ATC_9F36_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.DEDICATED_FILE_DF_NAME_84_KRN.Tag)) { return(false); } //if (database.IsNotPresent(EMVTagsEnum.FILE_CONTROL_INFORMATION_FCI_PROPRIETARY_TEMPLATE_A5_KRN.Tag)) return false; //if (database.IsNotPresent(EMVTagsEnum.FILE_CONTROL_INFORMATION_FCI_TEMPLATE_6F_KRN.Tag)) return false; //if (database.IsNotPresent(EMVTagsEnum.FORM_FACTOR_INDICATOR_FFI_9F6E_KRN3.Tag)) return false; if (database.IsNotPresent(EMVTagsEnum.ISSUER_APPLICATION_DATA_9F10_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.PROCESSING_OPTIONS_DATA_OBJECT_LIST_PDOL_9F38_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.TRACK_2_EQUIVALENT_DATA_57_KRN.Tag)) { return(false); } bool odaCardSupported = true; if (database.IsPresent(EMVTagsEnum.APPLICATION_INTERCHANGE_PROFILE_82_KRN.Tag)) { APPLICATION_INTERCHANGE_PROFILE_82_KRN aip = new APPLICATION_INTERCHANGE_PROFILE_82_KRN(database); APPLICATION_INTERCHANGE_PROFILE_82_KRN.APPLICATION_INTERCHANGE_PROFILE_82_KRN_VALUE aipST = aip.Value; if (!aipST.DDAsupported) { odaCardSupported = false; } else { odaCardSupported = true; } if (database.IsPresent(EMVTagsEnum.CARD_ADDITIONAL_PROCESSES_9F68_KRN.Tag)) { if (Formatting.IsBitSet(database.Get(EMVTagsEnum.CARD_ADDITIONAL_PROCESSES_9F68_KRN).Value[1], 5)) { odaCardSupported = true; } else { odaCardSupported = false; } } } //Card fdda if (odaCardSupported && ttq.Value.OfflineDataAuthenticationForOnlineAuthorizationsSupported && database.Kernel3Configuration.FDDAForOnlineSupported) { if (database.IsNotPresent(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN.Tag) && database.IsNotPresent(EMVTagsEnum.SIGNED_STATIC_APPLICATION_DATA_93_KRN.Tag) && database.IsNotPresent(EMVTagsEnum.APPLICATION_CRYPTOGRAM_9F26_KRN.Tag)) { return(false); } if (database.IsPresent(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN.Tag)) { if (database.IsNotPresent(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN.Tag)) { return(false); } if (pkcm.GetCAPK(RIDEnum.A000000003, database.Get(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN).Value[0]) == null) { return(false); } if (database.IsNotPresent(EMVTagsEnum.ISSUER_PUBLIC_KEY_CERTIFICATE_90_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.ISSUER_PUBLIC_KEY_EXPONENT_9F32_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.ISSUER_PUBLIC_KEY_REMAINDER_92_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.INTEGRATED_CIRCUIT_CARD_ICC_PUBLIC_KEY_CERTIFICATE_9F46_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.INTEGRATED_CIRCUIT_CARD_ICC_PUBLIC_KEY_EXPONENT_9F47_KRN.Tag)) { return(false); } //if (database.IsNotPresent(EMVTagsEnum.INTEGRATED_CIRCUIT_CARD_ICC_PUBLIC_KEY_REMAINDER_9F48_KRN.Tag)) return false; if (database.IsNotPresent(EMVTagsEnum.CARD_AUTHENTICATION_RELATED_DATA_9F69_KRN3.Tag)) { return(false); } //if (database.IsNotPresent(EMVTagsEnum.APPLICATION_EXPIRATION_DATE_5F24_KRN.Tag)) return false; if (database.IsNotPresent(EMVTagsEnum.APPLICATION_PRIMARY_ACCOUNT_NUMBER_PAN_5A_KRN.Tag)) { return(false); } } if (database.IsPresent(EMVTagsEnum.SIGNED_STATIC_APPLICATION_DATA_93_KRN.Tag)) { if (database.IsNotPresent(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN.Tag)) { return(false); } if (pkcm.GetCAPK(RIDEnum.A000000003, database.Get(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN).Value[0]) == null) { return(false); } if (database.IsNotPresent(EMVTagsEnum.ISSUER_PUBLIC_KEY_CERTIFICATE_90_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.ISSUER_PUBLIC_KEY_EXPONENT_9F32_KRN.Tag)) { return(false); } if (database.IsNotPresent(EMVTagsEnum.ISSUER_PUBLIC_KEY_REMAINDER_92_KRN.Tag)) { return(false); } //if (database.IsNotPresent(EMVTagsEnum.APPLICATION_EXPIRATION_DATE_5F24_KRN.Tag)) return false; if (database.IsNotPresent(EMVTagsEnum.APPLICATION_PRIMARY_ACCOUNT_NUMBER_PAN_5A_KRN.Tag)) { return(false); } } } //Application Usage Control //if (database.IsNotPresent(EMVTagsEnum.ISSUER_COUNTRY_CODE_5F28_KRN.Tag)) return false; return(true); }
public static bool DoOfflineAuth(KernelDatabaseBase database, KernelQ qManager, PublicKeyCertificateManager pkcm) { try { TLV sdadTLV = database.Get(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN); TLV ssadTLV = database.Get(EMVTagsEnum.SIGNED_STATIC_APPLICATION_DATA_93_KRN); if (sdadTLV == null && ssadTLV == null) { return(false); } if (database.Get(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN) == null) { return(false); } CAPublicKeyCertificate capk = pkcm.GetCAPK(RIDEnum.A000000003, database.Get(EMVTagsEnum.CERTIFICATION_AUTHORITY_PUBLIC_KEY_INDEX_8F_KRN).Value[0]); if (capk == null) { return(false); } TLV aip = database.Get(EMVTagsEnum.APPLICATION_INTERCHANGE_PROFILE_82_KRN.Tag); int length = database.StaticDataToBeAuthenticated.Serialize().Length; if (aip != null && database.IsNotEmpty(EMVTagsEnum.STATIC_DATA_AUTHENTICATION_SDA_TAG_LIST_9F4A_KRN3.Tag)) { if (2048 - length >= aip.Value.Length) { database.StaticDataToBeAuthenticated.AddToList(database.Get(EMVTagsEnum.APPLICATION_INTERCHANGE_PROFILE_82_KRN)); } else { return(false); } } if (sdadTLV != null) { TLV card = database.Get(EMVTagsEnum.CARD_AUTHENTICATION_RELATED_DATA_9F69_KRN3); if (card == null || card.Value[0] != 0x01) //check version number of fdda { return(false); } byte[] sdadRaw = database.Get(EMVTagsEnum.SIGNED_DYNAMIC_APPLICATION_DATA_9F4B_KRN).Value; ICCDynamicData iccdd = VerifySAD.VerifySDAD_K3(ICCDynamicDataType.DYNAMIC_NUMBER_ONLY, database, capk, sdadRaw); if (iccdd == null) { return(false); } VerifySAD.AddSDADDataToDatabase(database, iccdd); return(true); } if (ssadTLV != null) { byte[] sdadRaw = database.Get(EMVTagsEnum.SIGNED_STATIC_APPLICATION_DATA_93_KRN).Value; byte[] authCode = VerifySAD.VerifySSAD(ICCDynamicDataType.DYNAMIC_NUMBER_ONLY, database, capk, sdadRaw); if (authCode == null) { return(false); } TLV dataAuthenticationCode = database.Get(EMVTagsEnum.DATA_AUTHENTICATION_CODE_9F45_KRN); if (dataAuthenticationCode == null) { dataAuthenticationCode = TLV.Create(EMVTagsEnum.DATA_AUTHENTICATION_CODE_9F45_KRN.Tag, authCode); } database.AddToList(dataAuthenticationCode); return(true); } return(false); } catch { return(false); } }