emv

I have succesfully retrieved the CVM List from EMV card. 0000 0000 0000 0000 4103 4203 1E03 1F02 From the EMV specification book 3, the first 4 bytes and second 4 bytes are amount and rest is CV rules. Making these the CV Rule 4103 4203 1E03 1F02 The book also shows how to parse the CV rules, as shown below: I am assuming that I need to convert the first two bytes in a CV rule to binary and match with the table above? But why does the table above have empty cells? Also can someone explain in a simple pseudo code algorithm to parse this? Have you referred section 10.5.5 CVM Processing Logic in

I am trying to generate AC manually, I have a tool to generate AC but I want to generate it by my own to understand the algorithm for the same. My calculation is fine for Discover card but it is failing for MasterCard. As per my understanding, data used to generate AC is depend on Tag 8C - CDOL1 which we provide to card with Gen AC command + AIP + ATC. AIP and ATC - accessed internally by ICC. Data used to generate AC is:- data part of Gen AC command + value of tag 82 + value of tag 9f36 + 80 + optional 00 to make it multiple of 8. this is my logic ,it might be I am using wrong data to

I am trying to read the credit card data from the VISA card but could not able to make a success.As in the internet resources I have found that for the MASTER card we can select the PSE directory using 1PAY.SYS.DDF01 file and then read the records. But for VISA its not mandatory and when I use the following file using SELECT command for getting the PSE directory I get the response as '6A82'.Which means its is not supported by the file system. I looked for the Error in the EMV 4.2 Book 1(EMV specification) and it says that we have to use a "List of AIDs". It says "The terminal issues another

In the case of GETCHALLENGE Request (0084000000) in EMV, we are getting the positive response for VISA\DEBIT card, but for MASTERCARD we are getting the response as 6D00 (Instruction code not supported or invalid). Here are the sequence of commands that are being executed prior to callling the Get Challenge in the case of MasterCard. The CDOL as you can see has the tag for ICC Dynamic number and when the call for getting the dynamic number by executing the get Challenge command, I get Instruction code not supported error message. Answer To Reset Response: 3b6d00000031c071d66419160100849000

I am trying to build a correctly formatted GET PROCESSING OPTIONS command to be sent to a contactless EMV card. This post has been very helpful but I just need to know a little more detail. When parsing the PDOL, is it safe to assume that each tag is 2 bytes in length, followed by the size of the data expected in return? For example, the PDOL 9F66049F02069F37049F1A02 is broken into 9F66 04 , 9F02 06 , etc. each with 2 byte tags and 1 byte for the expected length of the data value. Is it safe to assume that each tag is 2 bytes in length when parsing? No, you can't expect that each tag consists

I´m starting a new project, I´m new using EMV reader and Javax SmartCardIO. I have the list of the RID for each type of card, however the only thing I can access without knowing the type of card is the ATR, I´m wondering if there is a way to get the RID or the card type with only this info, any help is welcome. Thanks in advance! EDIT: I tried to execute the select PSE command with this method: public static byte[] selectPSE(CardChannel channel) throws CardException { byte[] selectPSE = {(byte)0x00, (byte)0xA4, (byte)0x04, (byte)0x00, (byte)0x0E, (byte)0x31, (byte)0x50, (byte)0x41, (byte)0x59,

I'm trying to emulate a PoS, point of sale :), system and complete a transaction with Google wallet running on a 2013 Nexus 7 (no secure element) v4.4.2. My PoS prototype is also running on a 2013 Nexus 7 v4.4.2. I'm able to get NFC responses from the 2PAY_SYS_DDF01 request. I'm able to select the MasterCard application ID. I'm able to get Processing Options. When I Read Records it doesn't look like Google wallet is returning all the mandatory EMV fields. And finally when I request the Generate AC command it always returns 6D00 unsupported. Area of the code that is a problem: //set P1 to '40',