Java™ Smart Card I/O API

This specification describes the Java Smart Card I/O API defined by JSR 268. It defines a Java API for communication with Smart Cards using ISO/IEC 7816-4 APDUs. It thereby allows Java applications to interact with applications running on the Smart Card, to store and retrieve data on the card, etc.

The API is defined by classes in the package javax.smartcardio. They can be classified as follows:

Classes describing the corresponding Smart Card structures: ATR, CommandAPDU, ResponseAPDU
Factory to obtain implementations: TerminalFactory
Main classes for card and terminal functions: CardTerminals, CardTerminal, Card, CardChannel
Supporting permission and exception classes: CardPermission, CardException, CardNotPresentException
Service provider interface, not accessed directly by applications: TerminalFactorySpi

API Example

A simple example of using the API is:

	// show the list of available terminals
	TerminalFactory factory = TerminalFactory.getDefault();
	List<CardTerminal> terminals = factory.terminals().list();
	System.out.println("Terminals: " + terminals);
	// get the first terminal
	CardTerminal terminal = terminals.get(0);
	// establish a connection with the card
	Card card = terminal.connect("T=0");
	System.out.println("card: " + card);
	CardChannel channel = card.getBasicChannel();
	ResponseAPDU r = channel.transmit(new CommandAPDU(c1));
	System.out.println("response: " + toString(r.getBytes()));
	// disconnect
	card.disconnect(false);

@since 1.6 @author Andreas Sterbenz @author JSR 268 Expert Group