Implement tegnologia Java Card

Where I can be able to readers and cards to implement tegnologia Java Card

Better download the Sun'sJavaCardKit freely availble online in Sun's website

Similar Messages

ECC Curve P-224 implementation in java card

Hello
I am implemeting ECC in java card
but I need the Curve P-224 as my length
but Keybuilder is only upto P-192 only
how can I generate ECC curves parameters and generate key pair
using Curve P-224 .. please help
Thank you!

You're right, Java Card API 2.2.1/2 defines only up to 192 bit ECC key length. You have to find a smart card OS provider who has longer ECC key lengths implemented, offering you an industrial extension API to access it via your applet. Best is to contact smart card manufacturers with your question.

Java card implementation

I am a beginner of java card.
I want to implement JCRE on a smart card.But I don't know what I must do,what components can I get from SUN?

I am not just wanting to write a applet,I am planning to implement a JCRE on a card.
I(not only one) have used Infineon's smart card chip to develop COS(Chip Operating System).Now,I am planning to implement a JCRE on a Infineon card,but I don not know whether I can do like this.In my opinion implementation of Java card is a software system for programmers.if the smart card chip have enough resource,programmers can implement JCRE,manufacturer of chip(for example Infineon company) will mask your code into ROM just like code of COS.Could you tell me how to apply for a license from SUN or oher things about java card implementation?
Thanks a bunch,durangova.

Java Card Startup

I have downloaded JavaCard JDK 2.1.2,
I have a smartcard reader-writer
I have a smart card which I do not know if it works with Java.
I need to know what tools, hardware, what kind of smart card do I need to develop a project using Java Card.
Do I need a special kind of smart card, if so where can I buy it?
Thanks for your time and consideration.

Hi,
I was in this position a few short weeks ago... here's what you'll need:
First of all, you'll need to know whether or not your smartcard supports java. That's VERY important! Some cards do not include a processor, yours has to. Some cards only provide a sort of primitive "file system" for storing information. Yours has to have an operating system that implements the Java Card Runtime Environment. I guess that whoever you bought the smart card from would be the best person to ask about that stuff.
If you've already got the JavaCard Development Kit, you pretty much need only a couple more pieces of software. You need an application (hopefully included with the reader) to transfer your applets to the card, and you need an API for your host-side application that will communicate with the card. Opencard, at www.opencard.org, is a good API for this.
Hope this helps! Good Luck!
Russ

How SDA and DDA works in Java Card?

Hi Friends,
I want to know how exactly SDA and DDA works in Java Card technology..
Yes, i know that SDA (Static Data Authentication) is valid for every transactions, but the key used is always same for every transaction made..
and DDA (Dynamic Data Authentication) uses dynamic key for every transactions, it means that one key is valid for one transaction..
But, i'm a little bit confused how this is implemented in Java Card..
Is it related with SCP01 and SCP02?..
Please help me regarding this..
Thanks in advance

Hi,
I want to know how exactly SDA and DDA works in Java Card technology..This is an EMV concept and as such is not implemented in Java Card as such. You would have to create an implementation to be able to use SDA and DDA.
But, i'm a little bit confused how this is implemented in Java Card..
Is it related with SCP01 and SCP02?..It is not implemented natively in Java Card and are not related to SCP. SDA and DDA are for the EMV card application (card application data updates) and SCP is for the card manager (card content updates). While they could be considered similar concepts, they are not related in a Java Card sense.
Cheers,
Shane

Java Card Gurus.. help needed!!! Could be a hidden bug with JavaCard Tools!

Hello,
I've run into a small problem, if u could help me out, Id be really grateful.
The problem lies in the WAY the tools are used(apdutool, jcwde etc). The project envisages the running of the tools from a RELATIVE point of view and not absolute. That is, (simplistically speaking),
The Host side is handled thus:
I AM NOTrunning jcwde as : jcwde -p 9025 jcwde.app
The mode is : c:\javacarddk\bin\jcwde.bat -p 9025 c:\temp\raj\jcwde.app
The Card side is handled thus :
The CAP file generation is : c:\javacarddk\bin\converter.bat -config c:\temp\raj\walletfile.opt
The SCR file generation is : c:\javacarddk\bin\scriptgen.bat -o wallet.scr com/sun/..../javacard/wallet.cap
However. the SERVER responds positively with the "T=0 listening on port 9025" message,
but as soon as the CLIENT is started, ie
c:\javacarddk\bin\apdutool c:\temp\raj\wallet.scr,
The following exception is thrown :(SERVER)
java.net.SocketException: Connection reset by peer: JVM_recv in socket input str
eam read
jcwde terminating on receipt of SimulationException. See previous messages for
cause.
and on the CLIENT :
com.sun.javacard.apdutool.ReaderWriterError: Card powered down. (0x15)
Please help, as the source codes of the JavaCard API are not available, so I am unable to determine if this
RELATIVE path access is the root of the problem.
Any help is appreceiated!!!!
Thanks
--Raj

cref is not the same as JCWDE.
JCWDE uses class files to emulate Java Card environment. It doesn't support package installation.
If you want to test a package using JCWDE you should a) add path to your class files to classpath that is used by JCWDE and b) specify in JCWDE configuration file AIDs for your applets.
JCWDE receives APDU commands and transfer them to your classes, everything is executed in usual java VM. You can even put debug output (System.out.println(...)) into your sources.
cref if a 'c reference implementation' of Java Card VM. It executes Java Card bytecodes and emulates real device. It supports package installation (scriptgen/apdutool) and works with converted packages.
If you want to test a package using cref you should compile sources, convert class files into cap file, create a script for package installation and use apdutool to install and 'run' package in cref.

NetBeans java card platform

Dear All,
I need a java card simulator to debug my java card applet code.
I try to use Java Card Platform on NetBeans IDE 7.1 for debugging purpose. After successfully building the applet and loading it onto the simulated card environment I try to select the applet instance using the following command through the Console.
select //aid/3F564379F5/00279CD982
in response I receive the following error.
"Connection reset by peer: socket write error"
Is anyone using Java Card Platform for debugging? I would be very happy to hear how to resolve this problem.
Thanks in advance!
Cheers!
Mehmet

Mehmet wrote:
Hello Rohit,
If you download the Java Card Development Kit (http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javame-419430.html#java_card_kit-2.2.1-oth-JPR)
you will have a set of sample java card applets to use.
You can use JPShell to download the cap files(compiled applet) onto the card and send ADPU to the card to see if you get correct response.
Following link provides all the information to set up the environment and start developing java card applets using NetBeans IDE and GPShell.
https://minotaur.fi.muni.cz:8443/~xsvenda/docuwiki/doku.php?id=public:smartcard:javacardcompilation
I hope this can help.
MehmetI already have , Netbeans 7.1 and now i have gpshell 1.4.4 ,i think netbeans is capable to making .cap file, did you mean that with use of gpshell i can connect with java card through reader? gp shell would work stand alone or we need to set this to netbeans? i read the link which u passed to me, it seems very good but "it seems very tough to implement" . HELL IS WAITING FOR ME... KIDDING DEAR,
one last thing, anything other than net beans { here we create applet and it automatically create cap file} and gp shell are require to load applet onto the card? OR these is enough to implement wholo java card application- I asked this because i get the term JCOP and etc when i read uploading applet to card.
anyways thanks for your help.

Help with Java card client

Hello All ,
i am new to javacard ...
i am using JCOP31 , and smartcard reader 5321
and implementing the java card by using Eclipse with the JCOP tools plugin
I installed an applet on a java card... and i was told that i have to write a client program to test it.
I hope some one show me how to implement a javacard Client ..and what i should do to implement a JavaCard Client .
Thank You for your time.

Hi,
Your best bet (for communicating with a real card) is to use the classes in the javax.smartcardio package in Java 6. If you search the forum you should be able to find examples of using this.
If you need to communicate with the JCOP card simulator, you will need to use the JCOP offcard API's. This is a little bit harder and you will most likely have to use trial and error (and Eclipse) to find the classes you need. I have used this in the past, but I do not have any examples of this. It was actually possible to develop a service layer that can use either API so you can switch between a real card and JCOP simulator (handy for debugging). The JCOP offcard API jar file is in the JCOP Tools plugins directory.
Cheers,
Shane

JCOP and Java Card Reference Implementation

Hello,
is it possible to use the JCOP tool to debug or run an applet not on only on the simulation of the JCOP cards, but also on the Java Card Reference Implementation?
If yes, how can I do it?
Thanks

That would be interesting to see. I don't think it would be benefcial, simply because the JCOP uses additional features that aren't found in the JCREF, like Global Platform. Therefore, your applet downloads wouldn't work because of the difference in APDU commands. Also I don't know how the IDE debugging would handle it.
I'd like to see if JPCSC can work with JCREF for sending APDU commands.

Java Card and OID Implementation

Hi
Has anyone used java card (Smart card) authentication and authorization with Oracle Internet Directory. Can it be done using the Identity Managment Component.
More specifically speaking , I want to create the trade partner user in internet directory and wants to enable the JAAS in oracle application server for authentication and authorization.
There are other types of users ( patient) who are having the biometric smart card (i.e. Java card). When these user swipes the finger, client based authentication is performed using the fingerprints and connects to the oid to get the authorization and personal details.
Please let me know the exact suggestion to implement these type of identification and authorizaiton. Please let me know if there is any oracle technical paper which addresses the mentioned problem.
Thanks in Advance.
with regards
Mazhar

I am interested in this also. We are currently trying to move our website to java card authentication with an OID directory. I know it has been done before but have not thoroughly researched it yet.

Essentials for Java Card implementation

i am new at java CArd.
I would like to find out what is a good starting point for me if i want to begin using this technology. I know that I need the SDK. what else would I need? what book(s) would you reccommend? where can I find some examples and tutorials?

Have you google ? searched this forum ? Did you bother clicking the vertical menu on the left where it says "Java Card" ?
Do some homework before asking a question like that and you'll find that it's been answered over and over.

The version number of export file in Java Card 2.2 is not correct

Hi all,
I used jdk1.3.1 and java card 2.2's exp2text tool to see the content of an export file. The value of minor_version is 1. But the JCVM 2.2 spec. says it should be 2. So which one is correct?
Joey

Read my post again....indicate binary compatibility or incompatibility between successive implementations of a package.
I can gerenate CAP files generated with JC 2.2., and load onto my JC 2.1.1 cards. AS LONG as I'm not using JC 2.2 implementation.
Run the exp2Text on javacard.framework.service and notice that it should read minor = 2. That's because to use that export, JC 2.2 is minimal required implementation.

Java card confusing Issues!!!!!!! java card architecture, advantage!!!!!

QUESTION -1
As I know about architecture of any application is -
                //normal java software                          java card                                  java card
                  // 1                                               2                                      3
1-            application program                        host application                           host application
2-                     JVM                                   Applets                                       Applets
3-              operating system                JCRE(which contain all classes, JVM ....)                 JCRE(act as a O.S too)
4                    hardware                              Operating system                                 H/W
5                                                                        hardwareWhat do u think- case 2 is right? or 3 is!!!!!!!!!!!
I think - case 3 is right!!!!
As i study from several sources , JCRE is complete package - it behaves as a operation system and use the functionality of component it contain. I also think if i will purchase a java card from any vendor , it would have JCRE inside it (means everthing inside it,), i only need to develop the applet according to my requirement and install it by on card installer program
QUESTION 2- what is the advantage of java card.?
// I think.
as i read out , i got the line that it is platform independent and support multiple application. applicaton point of
view , I am agree but how it is platfrom independent. if we use java card for smart card development, then
i will purchase Java card from differnt vendor , all will provide me card with supported jcre inside it, so why
this is advantage here?
// in case of window based application , it really make sense because if i will make any window application with java
// i can run it in windows , linux , unix and most of os flavours, here i can see the beauty of java language.
Clear me this and add some other java card advantages, which make java card goodquestion 3-
Now I am capaple to make simple applets, so I want to check the entire java card process atleast once before
going in deep of something, I am thinking to implement prepaid card concept , i made it applet for it ,it will
contain a page with 2 text box ( 1- for recharge 2- for money deduction ) and two button , with button click i
want to select the applet and want to pass the apdu.
( a) how i can make host window application ? (i think awt will work for me? , *
i never make any java window application yet) *
( b) still i dont have any java card , i want to make it by using simulator, is it possible?
(c) in this scenario what framework i need to study Ex. Import javacard.framework.* for making
applet or from where i need to start.Regards:
rohit pathak
Edited by: rohit pathak on Feb 9, 2012 10:10 PM

Hi,
QUESTION -1
As I know about architecture of any application is -
//normal java software                          java card                                  java card
// 1                                               2                                      3
1-            application program                        host application                           host application
2-                     JVM                                   Applets                                       Applets
3-              operating system                JCRE(which contain all classes, JVM ....)                 JCRE(act as a O.S too)
4                    hardware                              Operating system                                 H/W
5                                                                        hardwareWhat do u think- case 2 is right? or 3 is!!!!!!!!!!! If you are using Java Card then JCRE+JVM = OS and if you put this on ein package 3 then 3 is correct according to me.
As i study from several sources , JCRE is complete package - it behaves as a operation system and use the functionality of component it contain. I also think if i will purchase a java card from any vendor , it would have JCRE inside it (means everthing inside it,), i only need to develop the applet according to my requirement and install it by on card installer program Actually it depends. There can be following models in this regards:
1. Buy a empty smart card, Install your own OS and then write your applets for it.
2. As you said, Buy a card with preloaded OS and then write applets for it.
QUESTION 2- what is the advantage of java card.?
* Interoperable: Applets developed with Java Card technology will run on any Java Card technology-enabled smart card, independently of the card vendor and underlying hardware.
* Secure: Java Card technology relies on the inherent security of the Java programming language to provide a secure execution environment. Designed through an open process, the platform's proven industry deployments and security evaluations ensure that card issuers benefit from the most capable and secure technology available today.
* Multi-Application-Capable: Java Card technology enables multiple applications to co-exist securely on a single smart card.
* Dynamic: New applications can be installed securely after a card has been issued, enabling card issuers to respond to their customer's changing needs dynamically.
* Compatible with Existing Standards: The Java Card API is compatible with international standards for smart cards such as ISO7816, or EMV. Major industry-specific standards such as Global Platform and ETSI refer to it.
* Developers creating Java Card applications enjoy all the advantages of working in the Java programming language:
Object-oriented programming yields greater code modularity and reusability, leading to higher programmer productivity.
Protection features characteristic of the Java programming language apply to Java Card applets, enforcing strong typing and protection attributes.
Powerful off-the-shelf development tools are readily available.
source: http://java.sun.com/javacard/overview.jsp
And also, in case of SIM card if you are using java card then RAM is possible and native cards don't have this ability.
question 3
Now I am capaple to make simple applets, so I want to check the entire java card process atleast once before
going in deep of something, I am thinking to implement prepaid card concept , i made it applet for it ,it will
contain a page with 2 text box ( 1- for recharge 2- for money deduction ) and two button , with button click i
want to select the applet and want to pass the apdu.
( a) how i can make host window application ? (i think awt will work for me? , *You can use swing for this to make interface and use smartcardIO http://docs.oracle.com/javase/6/docs/jre/api/security/smartcardio/spec/javax/smartcardio/package-summary.html for sending APDUs.
i never make any java window application yet) * It is easy you can look here and start: http://www.roseindia.net/java/example/java/swing/
( b) still i dont have any java card , i want to make it by using simulator, is it possible?Actually, smartcardIO will only interact with actuall card and for simulator you will have to use console for sending APDUs.
(c) in this scenario what framework i need to study Ex. Import javacard.framework.* for making
applet or from where i need to start.For your current case it is enough and for host app you should study smartcardio as i mentioned above.
Hope it helps.
Regards
Umer

Java Card 2.2.2 draft is out for public review

A draft for the upcoming release of the Java Card Specification is available for public review.
The Java Card 2.2.2 Specification will provide numerous enhancements to the award-winning Java Card platform. In particular it will include specific support for contactless communication and ID cards :
* enhancements to ease the management and increase interoperability of contactless cards.
* additional cryptography and security features
* utility APIs for memory-efficient applet development
Java Card technology v2.2.2 is ready for the next generations of smart card standards, and is fully backward-compatible with previous versions.
New features in Java Card 2.2.2 :
* Utility APIs for TLV, BCD, short, int
* ISO7816-based Extended length APDU support
* Support for up to 20 logical channels
* External memory access API
* Multiple Interfaces management
* Additional cryptography algorithms : HMAC-MD5, HMAC-SHA1, SHA-256 and Korean Seed
* Signature with message recovery
* Partial message digest
* Standardized Biometrics API
Please direct your comments on this draft at [email protected] Feedback received before December 15th will be considered for the final version of the specification. For more information on the Java Card Platform Specification v2.2.2, Public Review Draft, refer to the release notes on http://java.sun.com/products/javacard/RELEASENOTES_jcspecsp.html

The Installer and the Applet Deletion Manager are implemented in the JCRE and GlobalPlatform. On-card the Card Manager manages the content management, communication and the related security. JCRE specifies how it has to handle installation and deletion, but leaves room for different implementations. To the outside world, on a GP card, the Installer/ADM is the Card Manager with a specific AID.
Installer and ADM are optional. For instance a Java Card Static product does not need an Installer/ADM.
JCOP cards have the Installer/ADM fully implemented. It uses the GP functionality. The CM has to be selected to install or delete a package/applet.

A question about share interface in java card

I meet a big problem in java card recently.
I try to develop a loyalty and a purse in the JCOP 20 . I use the share interface to share data between two applets.At first I write two small applets to test the share interface.Then I manully dowon the two applets into the card but it doesn't work. The error always happen to the "getAppletShareableInterfaceObject" method.
Following is part of the code.
buffer[0]=(byte)0x06; buffer[1]=(byte)0x05; buffer[2]=(byte)0x04; buffer[3]=(byte)0x03; buffer[4]=(byte)0x02; buffer[5]=(byte)0x01; buffer[6]=(byte)0x01;
//server applet ID
AID loyaltyAID2 = JCSystem.lookupAID(buffer, (short) 0,(byte)7);
if(loyaltyAID2==null) ISOException.throwIt((short)0x0902);
loyaltySIO = (JavaLoyaltyInterface) JCSystem.getAppletShareableInterfaceObject(loyaltyAID2,(byte)0);
//...........................................error happen in this line
I try to find the error I find the error, so I trace to the server applet,I add a "ISOException.throwIt " method in the getShareableInterfaceObject in the server applet.
I find if I add it,the "getAppletShareableInterfaceObject" will return but get the null object.
It's correct.But when I remark the "ISOException.throwIt" and just return "this" ,the card will get "6F00".
Following is my code.
public Shareable getShareableInterfaceObject(AID clientAID,byte parameter)
//ISOException.throwIt((short)0x9999);
return this; } error happen in this line
TKS...

Yes I did do it,I modify the sample code of the SUN micro's loality and purse .Following is my source code.
Client code(purseeasy).......
//=========================
package purseeasy;
import com.sun.javacard.samples.JavaLoyalty.JavaLoyaltyInterface;
import javacard.framework.*;
public class purseeasy extends javacard.framework.Applet
private byte[] echoBytes;
private static final short LENGTH_ECHO_BYTES = 256;
     public purseeasy()
     echoBytes = new byte[LENGTH_ECHO_BYTES];
register();
public static void install(byte[] bArray, short bOffset, byte bLength)
new purseeasy();
public void process(APDU apdu)
byte buffer[] = apdu.getBuffer();
short bytesRead = apdu.setIncomingAndReceive();
short echoOffset = (short)0;
switch(buffer[2])
case 0x31:
AID loyaltyAID1 =JCSystem.getAID();
short i=loyaltyAID1.getBytes(buffer,(short)0);
if(loyaltyAID1==null)
          ISOException.throwIt((short)0x0901);
buffer[0]=(byte)0xd1;buffer[1]=(byte)0x58;
     buffer[2]=(byte)0x00;buffer[3]=(byte)0x00;
     buffer[4]=(byte)0x01;buffer[5]=(byte)0x00;
     buffer[6]=(byte)0x00;buffer[7]=(byte)0x00;
     buffer[8]=(byte)0x00;buffer[9]=(byte)0x00;
     buffer[10]=(byte)0x00;buffer[11]=(byte)0x00;
     buffer[12]=(byte)0x00;buffer[13]=(byte)0x00;
     buffer[14]=(byte)0x31;buffer[15]=(byte)0x00;
     AID loyaltyAID2 = JCSystem.lookupAID(buffer,
(short)0,(byte)16);
if(loyaltyAID2==null)
     ISOException.throwIt((short)0x0902);
     JavaLoyaltyInterface loyaltySIO =
(JavaLoyaltyInterface)
     JCSystem.getAppletShareableInterfaceObject(loyaltyAID2,(byte)1);
if(loyaltySIO ==null)
     ISOException.throwIt((short)0x0903);
loyaltySIO.grantPoints (buffer);
break;
apdu.setOutgoingAndSend((short)0, (short)18);
//=====================================
//Server program....share interface
package com.sun.javacard.samples.JavaLoyalty;
import javacard.framework.Shareable;
public interface JavaLoyaltyInterface extends Shareable
public abstract void grantPoints (byte[] buffer);
//=============================================
//Server program....loyalty
package com.sun.javacard.samples.JavaLoyalty;
import javacard.framework.*;
public class JavaLoyalty extends javacard.framework.Applet     implements JavaLoyaltyInterface
public static void install(byte[] bArray, short bOffset,
byte bLength)
{new JavaLoyalty(bArray, bOffset, bLength);
public JavaLoyalty(byte[] bArray, short bOffset, byte
bLength)
register();
public Shareable getShareableInterfaceObject(AID
clientAID,byte parameter)
return (this);
public void process(APDU apdu)
byte buffer[] = apdu.getBuffer();
short bytesRead = apdu.setIncomingAndReceive();
apdu.setOutgoingAndSend((short)0, (short)18);
public void grantPoints (byte[] buffer)
     buffer[0]=0x08;
     buffer[1]=0x08;
     buffer[2]=0x08;
     buffer[3]=0x08;
     buffer[4]=0x08;
     buffer[5]=0x08;
     buffer[6]=0x08;
     buffer[7]=0x08;
Could you tell me what wrong with my code???
Thanks....

Implement tegnologia Java Card

Similar Messages

Maybe you are looking for