This class only supports … Smart cards generally work using a set of commands, sent from the application to the card in a block known as an APDU (Application Protocol Data Unit), and which the card will respond to with an … PIV commands For each possible PIV command, there will be a class that knows how to build the command APDU and parse the data in the response APDU. Any advice on what … APDU list. based on the length of CData (i. Between the receipt of the command APDU and the sending of the response APDU to that command, only one logical channel is active. Note that the same list with extended searching options is implemented in our EFTtools … Dec 23, 2020 A command APDU is sent by the reader to the card – it contains a mandatory 4- byte … You should now understand the basics of what APDUs are, how to send Command APDUs and receive Response APDUs, a couple common Command APDUs as well as have a … Upon receiving an APDU command, the smart card processes the request and sends back a response. The format of the APDU is defined in ISO specification 7816-4. Note that the byte array is … SpringCore Reference BookPCSC Operation APDU Interpreter Status Words September 5, 2025 at 2:25 AM The response APDU has an optional body consisting of data and a mandatory trailer with two status bytes “SW1” and “SW2”. There are two ways to get the right ADF. apdu. It consists of a conditional body and a two byte trailer. A ResponseAPDU represents a Response Application Protocol Data Unit received from the smart card in response to a previous CommandAPDU. A command APDU is sent by the reader to the card – it contains a mandatory 4- … Here is the sample for Generate AC APDU Command and Tag 0x80 Format 1 template in the Response (related to Generate AC Command). If the card … Important: I am in a test environment, I am studying the APDU commands. Most likely byte 2 of frame 1, of the GetVersion response, which gives information related to the used main hardware product type identifier, is sufficient to categorize the device which was presented to … I have a FEITIAN BR301 reader and i am trying to run the VERIFY APDU command but the result is 6a88 (Referenced data not found). When I try for example this command: 00 A4 00 00 02 3F 00 00 … I am working on NFC enabled SIM, using ISO-7816-4. The extended APDU is used for more … A B C D E F] For the latest version of ISO7816 part 4, please contact ISO in Switzerland. My PIN is "012345" and based on some … In your sample: Under Tag 0x80 "Template, Response Message Format 1" packed Tag 0x82 "EMV, Application Interchange Profile (AIP)" value 2 bytes and rest is Tag 0x94 "EMV, … Note: You might want to try sending a 00A404000CA0000002430013000000010100 command APDU (the same command with a Le field present and set to 0x00 -- meaning you are expecting up to 256 … Most importantly, none of these inaccuracies affect the APDU Response Time measured at the client, which remains accurate in all cases. However, whenever I specify … Need help understanding APDU response Asked 11 years, 4 months ago Modified 9 years, 11 months ago Viewed 3k times APDU (Application Protocol Data Unit) is a format of exchange between the card and the device (POS, ATM, etc. ending in 0x90 0x00). Following are the APDUs 00 A4 00 00 02 3F 00 -> To … Application Selection Application Selection is the first step after the Answer to Reset. APDU response “90 00” – Command successfully executed (OK). SW_TIMEOUT = 0x6401; /* Exec error: Command timeout */ APDU. 2 Security architecture of the card … Response APDU The card will execute the command and send a response APDU back to the terminal. No matter which APDU Command i send. See the structure, fields, and examples of command and response APDUs according to ISO / IEC 7816-4 … For a command APDU, the limit is 260, and for a response APDU it is 258. My card is SLE44C80S with Siemens CardOS/M V 1. A response APDU consists of an optional body and a … Hello Help me understand the interpretation of the APDU command response. In particular, changing the PIN or ActivClient buffers using the BSI API pass-through is not recommended because it may … In response to this command the card will send you a list of application IDs (AIDs) that it supports. My android class looks like this: public class NfcHceService extends A response APDU as defined in ISO/IEC 7816-4. In APDU responses … 11 An APDU is an Application Protocol Data Unit, a TPDU a Transport Protocol Data Unit. ). CLA = 0x00 INS = 0x20 P1 = 0x00 P2 = 0x00 LC = 0x08 0x20 0xff 0xff 0xff 0xff 0xff 0xff 0xff After this i enter pin on pinpad, then i receive APDU response 6a86. The response bytes as printed in the log … What is the recommended data field size in a Java Card APDU ? From Zhiqun Chen's Java Card Technology for Smart Cards: Architecture and Programmer's Guide book, it mentions that … What are APDUs? APDU stands for Application Protocol Data Unit.