Our Online Store have the new products: RFID antenna board. Currently it can work with JC10M24R and JCOP4 card chips.
Compared with normal cards, the antenna board module has a smaller size and fixed holes, which is easy to integrate in the IOT(Internet Of Things) project.

Search found 20 matches

by gorgekin
Mon Jan 11, 2016 11:04 pm
Forum: Questions & Answers
Topic: Reset a java card
Replies: 2
Views: 6102

Reset a java card

Could anyone provide me the information on resetting a java card or the code to reset a javacard applet? Thanx
by gorgekin
Wed Dec 30, 2015 5:25 am
Forum: Questions & Answers
Topic: Does JCIDE support executing the script file?
Replies: 2
Views: 6956

Does JCIDE support executing the script file?

I have completed an applet in JCIDE. Now I write a script file and want to test my applet. Does JCIDE support executing the script file? If yes, how can I use JCIDE to run my script file? If it can't cover my need, could anyone recommend other tools for me ?
by gorgekin
Wed Dec 30, 2015 1:58 am
Forum: Questions & Answers
Topic: How to pass APDU command from one selected instance to another instance?
Replies: 1
Views: 4703

How to pass APDU command from one selected instance to another instance?

There could be many instances of an applet. But only one applet instance can be selected. So is it possible to pass any APDU command from the selected applet instance to another applet instance?

ps: The java card I am using is Java Card 3.0.4, GP2.1.1.
by gorgekin
Tue Dec 29, 2015 3:04 am
Forum: Communication
Topic: Have doubts with some terms in GlobalPlatform 2.1.1.
Replies: 1
Views: 6361

Have doubts with some terms in GlobalPlatform 2.1.1.

I have some doubts about some terms in GlobalPlatform 2.1.1. Here is some definition from GP2.1.1. Executable Load File: Actual on-card container of one or more application's executable code (Executable Modules). It may reside in Immutable Persistent Memory or may be created in Mutable Persistent Me...
by gorgekin
Wed Dec 23, 2015 11:01 pm
Forum: Questions & Answers
Topic: Implement int type variables in javacard
Replies: 1
Views: 4607

Implement int type variables in javacard

I am developing an applet which needs int type variables. I also need to do some basic computation operation with these variables.
What is the specific procedure for this?
Can anyone give me some pointers?
by gorgekin
Sat Dec 12, 2015 4:45 am
Forum: Questions & Answers
Topic: How to use java code to load and install .cap file into card?
Replies: 1
Views: 5937

Re: How to use java code to load and install .cap file into card?

Hello my friend. I have also stuck with the same issue once and I found the solution which I am going to share with you. Download GPshell , JCkit, or OpenSC tool. Any one of these tools will help you reach your goal. Here are some links which may be helpful to you. 1. m 2. http://www.javacardos.com/...
by gorgekin
Sat Dec 12, 2015 3:40 am
Forum: Questions & Answers
Topic: In java card, how to convert byte to short?
Replies: 2
Views: 6919

In java card, how to convert byte to short?

There are only small kinds of data types in java card. Now I am trying to convert data stored in a single byte type to short type. Ho can I do this? Is this the same as Java language?
by gorgekin
Fri Dec 11, 2015 1:45 am
Forum: Card Products
Topic: How to get JC version from java card?
Replies: 1
Views: 6208

How to get JC version from java card?

I know that there are many java card versions, e.g. 2.1.1, 2.2.2, 3.0.4 .
I have a white java card. The question is how to determine JC version from the card. Anybody know that?
Thanks
by gorgekin
Wed Dec 09, 2015 11:48 pm
Forum: Card Products
Topic: Qs about MANAGE CHANNEL Command
Replies: 1
Views: 5940

Qs about MANAGE CHANNEL Command

I know that MANAGE CHANNEL Command is used to close and open a logical channel. Close a logical channel command: 00 70 80 XX (i.e. 01 02 03) Open a logical channel command: 00 70 00 XX 00 (i.e. 00) As far as I know, the only open logical channel by default is Basic channel. Qs: 1. When and where mus...
by gorgekin
Sun Nov 29, 2015 4:49 am
Forum: Questions & Answers
Topic: How to find out what installed on javacard
Replies: 1
Views: 5482

How to find out what installed on javacard

I have a smart card. I wonder if there is any way to find out what installed on it? Maybe there are applets on it, but I don't know its AID and cannot select it with APDU command either. In this case,how can I select it?
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