Java card with javacardx.framework.math.BigNumber

Could somebody point me to a vendor for java cards that support javacardx.framework.math.BigNumber?
I searched this forum for 2.2.2 vendors, but could only find Athena IDProtect (http://www.athena-scs.com/product.asp?pid=32). The friendly support at Athena told me that this card does support the above package.
Are there any other vendors of 2.2.2 cards that I could contact?

Hi
I am student working on a smart card project
i am totally new to this field i have a lot of doughs to be cleared ..can you help me in this section
my email id [email protected]
i have return my doughs under the title : What is Client-Side API for RMI on the Java Card Platform
: java card virtual machine

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package test;
import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.ISO7816;
import javacard.framework.ISOException;
import javacard.framework.JCSystem;
import javacard.security.DESKey;
import javacard.security.KeyBuilder;
import javacard.security.RandomData;
import javacardx.crypto.Cipher;
* Test JC2.1.1 applet for random DES key.
* @author safarmer - 1.0
* @created 24/11/2009
* @version 1.0 %PRT%
public class TestApplet extends Applet {
    private DESKey key;
    private Cipher cipher;
     * Default constructor that sets up key and cipher.
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            case (byte) 0x00:
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Hi,
I compiled and converted Java card code both from the command prompt and Eclipse in Windows XP and it worked just fine.
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Are you converting with an Eclipse plugin? If so what are you using?
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Cheers,
Shane

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@clemson
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I dont install the wallet sample to java card with gpshell . help please .?

Hi
I use Gemalto pc twin Reader.
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script
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get_status -element 20
card_disconnect
release_context
I didnt load wallet applet to card. Some time I take install_for_load error , some time install_for_install_and_make_selectable()
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regards

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I suggest you search this forum. That question has been answered a lot.
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Hi,
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and then managed the communication between off card application using the OCF 1.2.
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John

I think you can store keys and data to sign in the same applet. data is just data, it won't auto interfere.
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cards are cards, not web servers. for us, public transportaton sectors guys, javacard 3 is a frankenstein. we want speed and low level access. we don't care about J2EE.
just don't tell me about the increased mem and power of new cards. How much will they cost? A javacard is already expensive, they will not get cheaper, and this will not help spreading javacards.
people working in the J2EE world will code for javacard 3 like they do for mainframes. They will require more powerful card just because they're too lazy to code a correct embedded software . Can you imagine that? Maybe javacard 4 will require a heatsink on cards.
this is a very personal opinion of course ;)

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Hi all,
has anyone ever used Elliptic Curve cryptography on a Java Card? I can't find any documentation and sample code about this topic, although it should be implemented in the new java card specifications.
I would like to use ECC instead of RSA for encrypting a message and verifying a signature on a java card with a EC pubkey.
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Thanks in advance,
Matthias

has anyone ever used Elliptic Curve cryptography on a
Java Card? I can't find any documentation and sample
code about this topic, although it should be
implemented in the new java card specifications.No, it can (not should) be implemented. The implementation of all cryptographic algorithms is optional.
I would like to use ECC instead of RSA for encrypting
a message and verifying a signature on a java card
with a EC pubkey.
If anyone could provide me with sample code or hints,
that would be very helpful!The sample code wouldn't be too complicated to create (should be very similar to using RSA) but where do you execute this code? All emulators/simulators and the real Java Cards I know do not support ECC.
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I tried to write a javacard applet. So,
Download Java Card Classic Development Kit 3.0.4 (java_card_kit-classic-3_0_4-rr-bin-do-b28-windows-06_sep_2011.jar) that I get its JAR File
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I can execute it. Now, I can get all stuff including the javacardx.framework.
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... Like sweeping cards from employees in a queue of people lining up in the morning?
When I created my applet, the aid is a fixed value inside the class.
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I find it very cumbersome that needs to be rerun and rerun, over and over again.
How do I test the applet easily with any values of AIDs that I'd like to put in, on the fly.
I know I can't simulate the sweeps of card in the applet because I can't have a main method with a signature
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Thanks
Jack

your question is hard to understand but:
an applet always has one definite AID and you cant change it after install as far as i know
a) you want to test many cards with diffrent AIDs?
->send a list of select commands and check the return values
b)you want one card with the same applet to be available for many AIDs?
->install many dummy applets forwarding the commands to one core applet
c)i think i didnt get your point :/

Java application communicate with java card applet without java card

Can I write java application to communicate with java card applet without using java card?
Can I send APDU to java card applet on computer(not install in java card)? If it's not, how can I write?
Best Regard,
Thanawan

Your JCOP simulator implements a JCVM/JCRE according
to specs. The CREF does that same thing excepts it's
only simulates the API without crypto or third party
applets. JCOP simulator is more then that. They are using thesame_ codebase for simulator and for oncard JCVM. Basically you are dealing with the same environment in both cases.

How do I communicate a Java Card applet with a server?

I'm new to Java and Java Card and currently developing a smart card system. I'm not sure what to use on my applet or server, JCSystem or SecureConnection or something else?
If I'm writing a server application, then how do I install it so that I can simulate it with cjre?
Thanks in advance.
p/s: Connection is using TSL.

The flow is like this:
Java Card --> POS terminal -> Server
Yes. I'm using JC3.
Here's what I've achieved so far using SocketConnection
SocketConnection sc = (SocketConnection) Connector.open("socket://localhost:50007");
InputStream is = sc.openInputStream();
OutputStream os = sc.openOutputStream();
os.write("Hello world!".getBytes());
is.read(buffer);
os.close();
is.close();
sc.close(); Edited by: andirady on Dec 4, 2012 11:59 PM

Java card with javacardx.framework.math.BigNumber

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