emv

问题 I'm trying to read name, card number, expiry date etc on Credit Card. but always return 6d00 when call SCardTransmit . I'm using pre-define AID, which i have googled to be valid (correct me if i'm wrong). here's the are : AID_LIST = { "A0000000421010", "A0000000422010", "A0000000031010", "A0000000032010", "A0000000041010", "A0000000042010", "A00000006900", "A0000001850002" } Thanks in advance. 回答1: I am not familiar with this API you are using, but you will have to send the following sequence

问题 I have selected application ( A0000000032010 ) on Visa contactless card and when I issue GPO command: "80A8000002830000" I get error: 67 00 Does anyone have idea what can be causing this? 回答1: You receive that error code because you are sending an invalid GET PROCESSING OPTIONS command. In response to the application selection, you received the following PDOL: 9F38 0E (Processing Options Data Object List (PDOL)) 9F6604 (Terminal Transaction Qualifiers (TTQ)) 9F0206 (Amount, Authorized

问题 I have a scenario where the EMV Contactless card image (American Express) SHOULD decline offline; however, the Ingenico PinPad is going online and approving and the VeriFone is declining offline. Even though, this scenario SHOULD decline offline - I am convinced this scenario should go ONLINE. I think the VeriFone is a false-positive and the Ingenico is doing the right thing by going ONLINE. The purpose of this scenario is to ensure that the terminal declines a transaction offline when CDA

问题 I try to figure out what kind of encryption the EMV standardization recommends for transferring payment information via NFC. I browsed through the specification, but I can't find any hint about this topic. I know though that the card manufacturer provides some encryption technology on their card itself, which has partly been compromised. Does someone know, if its encrypted at all (I hope so) and if so, with which technology? 回答1: The communication between the card and the contactless reader

问题 After packing my data and while trying to send to JPOS channel (server), i do receive the below error. Length = 0030 Byte length(b): 48 :: Incoming data HEX(d): 3830300238000000C2820000303030303130303732323137313934363030303030363030303231383030303631373139 org.jpos.iso.IFA_LLNUM: Problem unpacking field 33 (java.lang.ArrayIndexOutOfBoundsException: 48) unpacking field=33, consumed=42 org.jpos.iso.ISOException: org.jpos.iso.IFA_LLNUM: Problem unpacking field 33 (java.lang

问题 I need to read the PAN Code of every possible card through chip. In my job I have to use only C and I haven't routines that can help me in this boring task. So that's the steps APDU that I use: 1) SELECT 1PAY.SYS.DDF01 00 A4 0400 0E 315041592E5359532E4444463031 and then 00 C0 0000 22 315041592E5359532E4444463031 from the response to read all datas. Complete Response: 6f 20 e 84 31 50 41 59 2e 53 59 53 2e 44 44 46 30 31 a5 e 88 1 1 5f 2d 69 8 74 65 6e 66 72 65 73 90 2) READ RECORD to get the

问题 I am totally stumped about Issuer Scripts in EMV. I know what they are and I have read the EMV book 3. I was wondering if anyone has a good summary that tells me: Parse the script based on "86". Then based upon some values do this or that. Thanks 回答1: Content of EMV TAG 0x86 is ready to use APDU command for the smartcard. It could be any of EMV or ISO 7816 Commands actually and should be translated to smartcard thru EMV terminal application/kernel without additional modifications. Here are

问题 I'm trying to read a smartcard via my LG P710 Optimus L7 2. I'm following this tutorial I can select the "1PAY.SYS.DDF01" directory I can select the Application But I can't perform an "GET PROCESSING OPTIONS" It always result in an 6700 error (Lc or Le wrong) here is my code NfcAdapter mNFCAdapter; Intent intent; PendingIntent pendingIntent; private TextView mTextView; String[][] techList; IntentFilter[] filters = new IntentFilter[3]; @Override protected void onCreate(Bundle

问题 I am successfully getting Generate Command response [9F02 06 (Amount, authorized, numeric)]: 000000003000 [9F03 06 (Amount, other, numeric)]: 000000000000 [9F1A 02 (Terminal country code)]: 0826 [95 05 (Terminal verification results)]: 0000000000 [5F2A 02 (Transaction currency code)]: 0826 [9A 03 (Transaction date)]: 150724 (2015-05-28) [9C 01 (Transaction type)]: 00 [9F37 04 (Unpredictable number)]: 12345678 And the command is 80 AE 4000 1D 000000003000 000000000000 0826 0000000000 0826

问题 If present, EMV Tag 91 Issuer Authentication Data can have several different formats when returned in a transaction response. From my (limited) understanding, this may be determined by the card brand. For example MasterCard Tag 91 includes Card Status Update as part of Tag 91 data Visa Tag 91 includes the Authorization Response Code as the last two bytes of Tag 91 data. I need to solve a problem where Tag 8A Authorization Response Data is not returned as part of the EMV tag data in the case