Is it possible for an Android application to send a previously stored RFID card ID to a NFC reader? The aim would be to use an Android device to enable access to a room instead of a physical RFID c...

I am struggle to understand what protocol I have to use to communicate with the card T0 or T1? So, correct me if I am wrong, but the reader actually decides by itself what protocol to use to commun...

I would like to send a response APDU containing a response data field as well as a status word that is not 0x9000. Considering my understanding of ISO 7816-4 this should be possible in general. Ho...

I'm trying to authenticate a Mifare Ultralight C (ISO/IEC 14443-2 and 14443-3 type A compatible) tag. I send the authentication command with the MifareUltralight.transceive() function provided in ...

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 Le field allows a m...

I was reading information on this link in regards to signing an application with carrier privileges. I am aware of how to sign an application using a keystore for production releases, but how do I...

I'm trying to send APDU commands to the card reader itself instead of the Smart Card. The test command I'm using turns the RF field on and off. This commands sends over SCardTransmit if I first co...

Preface: I have a dual interface smart card reader that has some extended capabilities (other than sending APDU commands to card and receiving APDU responses). For example in its document it is m...

So I have a smart card provided by the company which looks like a credit card with a chip. This card logins on a website after the card is inserted into the card reader. Now I have to write a prog...

I developed a Java Card applet in Eclipse and obtained a cap file. Then i used jcManager – Java Secure Card Manager to load that file to my smart cards. I have two type of smart cards: Contact, ...

I am working on an Application using the IsoDep Tag Tech to issue APDU commands to an NFC enabled card. UPDATE: So the issues seen below seem related to the power requirements of the cards I am us...

Which APDU command gets 7 bytes of the card ID? I use T=CL (ISO7816) protocol with ISO14443 layer. On detect card I can see only 4 bytes of the card ID. I found that this should be the APDU command...

We developed a prototype board with a microcontroller, which can communicate with a SmartCard (It can read the ATR, issue and read responses to APDU commands, etc).Now I want to use this hardware w...

GPO Command is defined like this as an APDU command: CLA INS P1 P2 Lc Data Le 80 A8 00 00 Lc Data 00 So the missing parts is Lc & Data which we have to compute from the PDOL (if it is given). ...

I am a beginner programmer and have problem about sending CCID Command to the Smart Card via Usb Host on Android mobile device. This time I sent PC_to_RDR_IccPowerOn CCID command PC_to_RDR_IccPower...

I'm currently working on my diploma work. Part of the work includes development of JavaCard applet for regular SIM cards. First option is to use JavaCard2.X API and use APDU commands to communicate...

I have tachograph company card which is used to get the client authenticated before allowing him to download the data of the tachograph by the remote download. The used APDU command in my code belo...

I have an ACR122U NFC reader/writer connected to my Windows machine with ACR122 driver installed. I try to use javax.smartcardio API to send an SELECT (by AID) ADPU to my Android device (which sho...

See NFC reader "SELECT (by AID)" APDU is not routed to Android device on debugging and eventual results. TL;DR the reader might simply be defunct. I have ACR122U nfc reader. I try to r...

See NFC reader "SELECT (by AID)" APDU is not routed to Android device on debugging and eventual results. TL;DR the reader might simply be defunct. I have ACR122U reader connected to my...

I'm working on a C platform and I want to read the AFL of a card. If the previous command, select of the AID, don't give me a PDOL tag, it's ok: I can read the AFL without issues. But I need to wri...

I'm trying to write a web application which needs to exchange messages with a local Smart Card. Currently I'm trying to use WebUSB API to connect the Chrome with the smart card reader, but I...

I am facing a very strange problem with MIFARE DESFire. When I write small amounts of data (e.g. 11 bytes), the write operation succeeds. However, when I try to write e.g. 50 byte, the response is ...

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...

I would like to write a Java Card applet that responds to an NFC reader as if it was a regular MIFARE Ultralight or NTAG NFC tag. I am aware the MIFARE protocol is proprietary and may be a little ...