emv

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 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 usual APDU Instructions (INS) for Issuer scripts: - 16: EMV, Card Block - 18: EMV, Application Unblock - 1E:

I have few questions when the reader initiates the transaction with NFC emulated payment application using HCE Does the reader send the PPSE command as with the regular contactless card infrastructure? Does the host controller respond to PPSE command with the list of AID's from the registered AIDs listed in the routing table? So after the reader selects the AID, the host controller directs to the right HCE service? Please correct my understanding on the above concept. An EMV payment card terminal will not distinguish plastic cards, secure element based cards or HCE emulated cards. In all cases

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 of a non approval response. The payment platform has advised to take the last 2 bytes of tag 91 and

I have a simple JavaCard HelloWorld script, i execute it in JCIDE with virtual reader then i send apdu commands from pyapdutool: 00a404000e aid then 80000000 and i receive javacard string, everything runs fine. My question is: how can i return a tlv format data instead of that response ? I was looking in the emv book 4.3 about this and also on google haven't found a single example to implement emv tlv tags in javacard script. Can someone put me on correct path to understand this ? package helloworld; import javacard.framework.*; public class helloworld extends Applet { private static final

Can someone explain the usage for the following EMV keys: - MDK Encryption Key - MDK MAC - MDK AC And what is the relation between these keys and MAK-AC, MK-SMI and MK-SMC I can't find any reference to MDK in EMV Book 2 – Security and Key Management EMV was implemented to make the transaction most secure and these keys do their part in Integrity, Confidentiality and Security aspect of it. As it sounds Integrity is to make sure the data is not altered on transit Confidentiality to make sure only the right person can access it Security to ensure that it came from whom you think it is. The

i have some issues with reading the IBAN number from the german CashCards (also known as Geldkarte). I can communicate with my card, and i get some informations from it. but i don`t know which commandApdu i must send to the card, to get the IBAN number... The application runs on Java 7 and i use the java.smartcardio api Protocoll is T=1 my commandApdu to get the date looks like this: byte[] commandBytes = new byte[]{0x00, (byte)0xa4, 0x04, 0x00, 0x07, (byte)0xa0, 0x00, 0x00, 0x00,0x04, 0x30, 0x60, 0x00}; the information i get is: 6F 32 84 07 A0 00 00 00 04 30 60 A5 27 50 07 4D 61 65 73 74 72