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 40 matches

by mbsysde99
Wed Feb 09, 2022 7:22 pm
Forum: Applets Development Guide
Topic: The ALgorithm of RSA Sample Code
Replies: 6
Views: 62496

Re: The ALgorithm of RSA Sample Code

Good morning. I'm trying to modify the RSA encrypt function using the private key instead of the public. Then I want to use the public to decrypt the message. some suggestion? tnx, The proccess RSA as encrypt/decrypt as follows: 1. Create RSA instance and Generate KeyPair (Pubic Key and Private Key...
by mbsysde99
Sun Feb 06, 2022 7:02 am
Forum: Questions & Answers
Topic: TCP Server on Javacard and how to access it from mobile
Replies: 1
Views: 10166

Re: TCP Server on Javacard and how to access it from mobile

If you want your `javacard` to be read by your `android phone`, you can create an `android program` as `a host` on your `android phone`. The `Java card` can be connected to an `Android phone` via an `NFC reader`. So your `Android phone must support NFC reader`. If your Android phone does not have an...
by mbsysde99
Fri Jan 28, 2022 11:42 am
Forum: Applets Development Guide
Topic: How to save variables to EEPROM of Java Card JC30M48CR
Replies: 1
Views: 10935

Re: How to save variables to EEPROM of Java Card JC30M48CR

A. PERSISTENT MEMORY 1. // Persistent Memory (EEPROM) = Memory still exist while lost power. // Without set as transient object, it immediately becomes a persistent object and save to EEPROM. byte[] SRC = new byte[]{1, 2}; OR 2. // Persistent Memory (EEPROM) = Memory still exist while lost power by...
by mbsysde99
Fri Jan 28, 2022 6:08 am
Forum: Applets Development Guide
Topic: How to save variables to EEPROM of Java Card JC30M48CR
Replies: 1
Views: 10935

How to save variables to EEPROM of Java Card JC30M48CR

I want to store a variable in memory that is not lost when the power supply is lost and I can update the contents of that memory while the program is running. In short, How to save variables to EEPROM of Java Card JC30M48CR? Thanks.

Regards,
Yudha
by mbsysde99
Fri Jan 21, 2022 12:46 pm
Forum: Questions & Answers
Topic: Send data to socket from Java Card
Replies: 7
Views: 15352

Re: Send data to socket from Java Card

As far as I know, you can send Apdu from the HOST to JCIDE via socket. The goal is to SIMULATE communication between the applet running on JCIDE (as virtual card) and the HOST (as reader). To debug the applet and host programs, and make sure that they both work the way you want, before you plug the ...
by mbsysde99
Thu Jan 20, 2022 8:26 pm
Forum: Shopping FAQ
Topic: Please add a chat feature
Replies: 0
Views: 19568

Please add a chat feature

Please add a chat feature in this forum like https://www.phpbb.com/community/viewtopic.php?t=2286221, making it easier for people who want to ask your product directly before buying it. Thanks.

Regards,
Yudha
by mbsysde99
Sun Jan 16, 2022 2:21 pm
Forum: User Guide
Topic: How to send apdu to JCIDE through socket interface .
Replies: 11
Views: 37578

Re: How to send apdu to JCIDE through socket interface .

kuafu wrote:
Thu Jul 04, 2019 11:45 pm
c++ demo
Are you have in C# demo?
by mbsysde99
Sun Jan 16, 2022 2:10 pm
Forum: Questions & Answers
Topic: Send data to socket from Java Card
Replies: 7
Views: 15352

Re: Send data to socket from Java Card

I also have same problem with you :roll:
by mbsysde99
Sun Jan 16, 2022 12:25 pm
Forum: Products Release
Topic: JCKit JAVACOS_7.4.0.3 released
Replies: 3
Views: 14204

Re: JCKit JAVACOS_7.4.0.3 released

Greetings all, We are pleased to announce the release of JCKit JAVACOS_7.4.0.3. Compared with the previous version, this version fixed some bugs and add some new features. Fix: 1.Removed the restriction on the requirement of non-integer numbers for array subscripts in the conveter 3.0.5 version. 2....
by mbsysde99
Sat Jan 15, 2022 5:46 pm
Forum: User Guide
Topic: How to send apdu to JCIDE through socket interface .
Replies: 11
Views: 37578

Re: How to send apdu to JCIDE through socket interface .

The remote socket does not work properly. The Android demo code also can't send APDU. It simply connects to JCVM. Need detailed protocol set. Do you change the socket port properly? client->ConnectServer("127.0.0.1", 8007); Its not worked, I get message like follows: Disconnect CB port client VRead...
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