Search found 40 matches
- Wed Feb 09, 2022 7:22 pm
- Forum: Applets Development Guide
- Topic: The ALgorithm of RSA Sample Code
- Replies: 6
- Views: 63930
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...
- 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: 10601
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...
- 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: 11417
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...
- 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: 11417
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
Regards,
Yudha
- Fri Jan 21, 2022 12:46 pm
- Forum: Questions & Answers
- Topic: Send data to socket from Java Card
- Replies: 7
- Views: 15892
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 ...
- Thu Jan 20, 2022 8:26 pm
- Forum: Shopping FAQ
- Topic: Please add a chat feature
- Replies: 0
- Views: 20705
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
Regards,
Yudha
- Sun Jan 16, 2022 2:21 pm
- Forum: User Guide
- Topic: How to send apdu to JCIDE through socket interface .
- Replies: 11
- Views: 38570
- Sun Jan 16, 2022 2:10 pm
- Forum: Questions & Answers
- Topic: Send data to socket from Java Card
- Replies: 7
- Views: 15892
Re: Send data to socket from Java Card
I also have same problem with you
- Sun Jan 16, 2022 12:25 pm
- Forum: Products Release
- Topic: JCKit JAVACOS_7.4.0.3 released
- Replies: 3
- Views: 14969
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....
- Sat Jan 15, 2022 5:46 pm
- Forum: User Guide
- Topic: How to send apdu to JCIDE through socket interface .
- Replies: 11
- Views: 38570
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...