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 101 matches

by Tarantino
Mon Oct 10, 2016 5:13 am
Forum: Questions & Answers
Topic: Lock applet on card power transitions
Replies: 3
Views: 7780

Re: Lock applet on card power transitions

As code can't be called after power is lost.

The simple method is to keep a magic in CLEAR_ON_RESET memory and always check for the presence of the magic cookie in either select() or process() and run your code if not.
by Tarantino
Thu Sep 29, 2016 9:44 pm
Forum: Questions & Answers
Topic: Memory size of JC10M24R
Replies: 6
Views: 10669

Re: Memory size of JC10M24R

The memory value showed in the result is the remaining memory after you uploaded algtest cap file. You can code an simple applet by yourself to get the exact memory size.
by Tarantino
Mon Aug 29, 2016 4:54 am
Forum: Questions & Answers
Topic: Implementing of javacardx.biometry
Replies: 10
Views: 15502

Re: Implementing of javacardx.biometry

Thank you tarantino, You are right. can you answer another question. hasn't JCIDE any facilities to load two applet on simulator simultaneously? (To find out can i call javacardx.biometry interfaces which i implemented in second applet) In JCIDE, select " Debug-> Run or Debug Configuration &qu...
by Tarantino
Sun Aug 28, 2016 11:31 pm
Forum: Questions & Answers
Topic: Implementing of javacardx.biometry
Replies: 10
Views: 15502

Re: Implementing of javacardx.biometry

Hi, The error you got is just because the java card kit version is wrong. Follow the steps below to change JCKit version in JCIDE to jc 2.2.2, the project will be complied successfully. From the menu, select " Build-> Property ", a dialog box "Property Sheet" will pop up. Click &...
by Tarantino
Wed Aug 24, 2016 4:07 am
Forum: Questions & Answers
Topic: Implementing of javacardx.biometry
Replies: 10
Views: 15502

Re: Implementing of javacardx.biometry

I have done test with your project in JCIDE, and the project can be downloaded and installed in JCIDE simulator successfully. it can run without any problem. So I guess maybe your real card doesn't support some function.
by Tarantino
Fri Aug 05, 2016 1:36 am
Forum: Algorithm School
Topic: 6F00 when instantiating a RSAPublicKey
Replies: 2
Views: 8381

Re: 6F00 when instantiating a RSAPublicKey

0x6F00 means that there is an un-handled exception in your code.

Wrap the line of code in a try/catch. It will throw a CryptoException and you can call getReason() to find out what's wrong.
by Tarantino
Wed Jul 13, 2016 1:50 am
Forum: Questions & Answers
Topic: RSA encryption algorithm
Replies: 3
Views: 8823

Re: RSA encryption algorithm

There are some problems in your code. Try the below code. This code will encrypt your data and send the response in one APDU. //In constructor cipherRSA = Cipher.getInstance(Cipher.ALG_RSA_PKCS1, false); //In Process Method short len = apdu.setIncomingAndReceive(); // This is the amount of data read...
by Tarantino
Fri Jul 01, 2016 5:55 am
Forum: Questions & Answers
Topic: sendBytesLong()
Replies: 2
Views: 6598

Re: sendBytesLong()

The method "sendBytesLong(...)" is to send data in working buffer larger than APDU buffer.
by Tarantino
Mon Jun 20, 2016 6:07 am
Forum: Questions & Answers
Topic: Optional Authentication in Load and Installation flow diagram
Replies: 2
Views: 6350

Re: Optional Authentication in Load and Installation flow diagram

You can see this table in part 9. APDU Command Reference.

MINI_SECURITY_REQUIREMENT.png


This figure shows that Both load and install require a secure channel. The diagram you mention may not require an explicit authentication as implicit authentication could also be used.
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