Load Applet to Java card

[Samara]

I would like to know the steps to simulate an applet Java Card ( JCWDE and APDUTOOL ) in Eclipse , under Windows XP. The constraints imposed by the Smart (the size of the JVM and the runtime system should not exceed 16 kb ) were forced to establish a system requiring the least possible memory resource . Any idea? Please update. Thanks in advance.

[MindSpace]

Applets are loaded into the card through a CAP file . This file is generated in two steps . First, the Java classes are compiled in a conventional manner (with javac. The only difference being the use of Java Card API and not the Java standard ) to files . class. Then , a conversion tool (converter), provided by the JavaCard Development Kit , includes all classes of the same package in a single file CAP . It also makes a number of checks on the code ( check the size of integers manipulated by example) and the linking between the classes .

[Zecho]

We will resume the application developed in the first part of TP , but this time, we will perform the compilation step by hand. Get the source file MonApplet.java and place it in a new directory (eg ~ / ELECINF359/upload/monpackage) . The compilation is done using the following command :

javac ELECINF359/upload MyPackage / MonApplet.java - classpath ~ / ELECINF359/jc211/bin/api21.jar -source 1.3- target 1

[opaper]

Parameter classpath tells the compiler to take into account the JavaCard API ( and not the API standard Java SE) , and parameters source and target tell the compiler to generate bytecode compatible with Java Virtual Machine version 1.3 ( so we can not use the latest Java such as generics ) because the virtual machine from the card does not support newer versions.

[Reegan]

You need to use the tool converter provided by the SDK to generate the JavaCard CAP file from the class we just compile. To be sure the environment , re - export the environment variables of the first part of TP (in practice , the command converter is a script that starts the execution of a class using Java virtual machine , it is necessary that it be properly configured).

~ / ELECINF359/upload $ export JAVA_HOME = / usr
~ / $ export ELECINF359/upload JC_HOME = ~ / ELECINF359/java_card_kit-2_2_2
~ / ELECINF359/upload $ export PATH = $ PATH : $ JC_HOME / bin

[Muwafaq]

Mails We will modify the code of the client application written in the first part to it now communicates with the card and not with the simulator. Good news , recent releases of Java virtual machines natively integrate everything needed to communicate with a Card Reader ( provided he has a driver is PC / SC ) and a map. The source code of the client application amended Maclasse2.java. Compile ( in Eclipse for example ) the class and test the communication with the card.