JavaCard
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JavaCard est un canevas d’exécution d'application pour carte à puce développé en Java.
Les APIs
Les outils
Global Platform
Global Platform est un standard permettant l'installation de cardapplets.
Carte étudiante (ancienne génération)
Script pour lister les card applets
mode_211 gemXpressoPro enable_trace establish_context card_connect select -AID a000000018434d open_sc -security 3 -keyind 0 -keyver 0 -key 47454d5850524553534f53414d504c45 // Open secure channel get_status -element 20 card_disconnect release_context
Script pour lister les card applets sélectionnables
mode_211 gemXpressoPro enable_trace establish_context card_connect select -AID a000000018434d open_sc -security 3 -keyind 0 -keyver 0 -key 47454d5850524553534f53414d504c45 // Open secure channel get_status -element 40 card_disconnect release_context
Application Java pour lister quelques informations de la carte
package fr.imag.javacard;
import javax.smartcardio.*;
import java.util.*;
public class Main {
static class Util {
static final String HEXES = "0123456789ABCDEF";
public static String getHex(byte[] raw) {
if (raw == null) {
return null;
}
final StringBuilder hex = new StringBuilder(2 * raw.length);
for (final byte b : raw) {
hex.append(HEXES.charAt((b & 0xF0) >> 4))
.append(HEXES.charAt((b & 0x0F)));
}
return hex.toString();
}
}
private static byte[] appletAID = {0x55, 0x6E, 0x69, 0x76, 0x2E, 0x55, 0x4A, 0x46};
private final static byte INS_SELECT = (byte) 0xA4;
private final static byte INS_GETDATA = (byte) 0xCA;
static class Command {
String description;
Command(String description) {
this.description = description;
}
}
private static final Map<Integer, Command> COMMAND_MAP =
Collections.unmodifiableMap(new HashMap<Integer, Command>() {{
put(1, new Command("ID(?)"));
put(2, new Command("Version(?)"));
put(3, new Command("(?)"));
put(4, new Command("INE"));
put(5, new Command("Creation(?)"));
put(6, new Command("Update(?)"));
}});
public static CardTerminal selectCardTerminal() throws Exception {
Scanner in = new Scanner(System.in);
TerminalFactory tf = TerminalFactory.getDefault();
List<CardTerminal> ctlist = null;
ctlist = tf.terminals().list();
if (ctlist.size() == 0) {
throw new Exception("No reader present");
}
if (ctlist.size() == 1) {
return ctlist.get(0);
}
int index = 0;
do {
System.out.println("Readers:");
System.out.println("============================================");
for (CardTerminal ct : ctlist) {
System.out.println(index++ + ": " + ct.getName());
}
System.out.print("Select a reader:");
index = in.nextInt();
} while (index < 0 || index >= ctlist.size());
return ctlist.get(index);
}
public static void selectApplication(CardChannel cc) throws Exception {
System.out.println("Selecting \"Univ.UJF\" application");
CommandAPDU apdu = new CommandAPDU(
0x00, INS_SELECT,
0x4, 0x0,
appletAID);
ResponseAPDU rapdu = cc.transmit(apdu);
if (rapdu.getSW() != 0x9000) {
throw new Exception("Can't select \"Univ.UJF\" application: "
+ Integer.toHexString(rapdu.getSW()));
}
}
public static void main(String[] args) {
try {
CardTerminal ct = selectCardTerminal();
Card c = ct.connect("T=0");
ATR atr = c.getATR();
System.out.println("ATR : " + Util.getHex(atr.getBytes()));
CardChannel cc = c.getBasicChannel();
selectApplication(cc);
for (int id : COMMAND_MAP.keySet()) {
Command cmd = COMMAND_MAP.get(id);
CommandAPDU apdu = new CommandAPDU(
0x00, INS_GETDATA,
(byte) id, 0x00, new byte[]{0x01});
ResponseAPDU rapdu = cc.transmit(apdu);
if (rapdu.getSW() != 0x9000) {
throw new Exception("Can't get data (" + id + "): "
+ Integer.toHexString(rapdu.getSW()));
}
System.out.println(cmd.description + ":"
+ new String(rapdu.getData()));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
Muscle pour la carte étudiante
Compilation
(De préference sous Linux)
- Télécharger les sources de Muscle
svn co svn://svn.debian.org/muscleplugins/trunk/MCardApplet
- Télécharger Java Card 2.1.2 Development Kit: lien
- Changer common.xml en modifiant:
Index: common.xml
===================================================================
--- common.xml (revision 297)
+++ common.xml (working copy)
@@ -62,8 +62,8 @@
executable="${JAVA_BUILD_HOME}/bin/javac"
srcdir="${APPLET_SRC}"
destdir="${OUTPUT_DIR}"
- target="${VM_TARGET_VERSION}"
- source="${VM_SOURCE_VERSION}">
+ target="1.1"
+ source="1.2">
<bootclasspath>
<pathelement location="${BOOTCLASSPATH}"/>
</bootclasspath>
- Modifier le fichier JCOP.properties
CARD_NAME=JCOP
JAVA_BUILD_HOME=PATH_VERS_JDK
JC_HOME=PATH_VERS JC212
API_JAR=${JC_HOME}/lib/api21.jar
API_EXPORT_FILES=${JC_HOME}/api21_export_files
Installation
Deplacer le fichier CardEdge.cap dans le dossier de GPShell et lancer le script suivant
mode_211 gemXpressoPro enable_trace establish_context card_connect select -AID a000000018434d open_sc -security 3 -keyind 0 -keyver 0 -key 47454d5850524553534f53414d504c45 // Open secure channel install -file CardEdge.cap -sdAID A000000018434D00 -nvCodeLimit 4000 card_disconnect release_context
Initialisation
Comme spécifié ici, l'applet à besoin d'être initialisé (par exemple avec opensc):
opensc-tool -s 00:A4:04:00:06:A0:00:00:00:01:01 \ -s B0:2A:00:00:38:08:4D:75:73:63:6C:65:30:30:04:01:08:30:30:30:30:30:30:30:30:08:30:30:30:30:30:30:30:30:05:02:08:30:30:30:30:30:30:30:30:08:30:30:30:30:30:30:30:30:00:00:17:70:00:02:01