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 76 matches

by horse dream
Wed Dec 02, 2015 8:31 am
Forum: Algorithm School
Topic: How to encrypt data -- on card or off card
Replies: 1
Views: 5808

Re: How to encrypt data -- on card or off card

Basically it depends what you call the off-card application, and whether you consider it trusted.
Anyway to answer your question, the private data managed by the card application does not need to be encrypted before being stored, because the storage can be considered safe.
by horse dream
Tue Dec 01, 2015 1:10 am
Forum: Reader
Topic: Power control for a smart card reader
Replies: 1
Views: 6172

Re: Power control for a smart card reader

No, there is no standard for doing that. If there is something, it has to be proprietary for the reader or possibly some generic USB power management API.
by horse dream
Mon Nov 30, 2015 11:49 pm
Forum: Questions & Answers
Topic: How to find out what installed on javacard
Replies: 1
Views: 5483

Re: How to find out what installed on javacard

There are many tools for you to list all the applets-AID on java card, such as GPShell , OpenSC, pyAPDUtool and so on. There are also an open source library to aim your goal. See this topic for the demo code. If you have the applet-AID that you wanna make selectable, you can select it by these tools.
by horse dream
Mon Nov 30, 2015 11:25 pm
Forum: Algorithm School
Topic: how compute Phi(N) of RSA?
Replies: 2
Views: 6917

Re: how compute Phi(N) of RSA?

In RSA computation, N=P*Q Phi(N) = (P-1)*(Q-1) When computing RSA STD, D<Phi(N) Phi(N) = (P-1)*(Q-1) = P*Q - (P+Q) + 1 According to N = P*Q, P + Q ≈ 2*(N^?) Phi(N) = N - 2*(N^?) + 1 How to compute N^?: According to X2 = [X1 + (N/X1)]/2, The first computation, X1 takes a radom number, compute X2. The...
by horse dream
Mon Nov 30, 2015 11:08 pm
Forum: Algorithm School
Topic: how to make a signature with java card and verify it
Replies: 1
Views: 6762

Re: how to make a signature with java card and verify it

Simply use Signature and ALG_RSA_SHA_PKCS1 instead of SignatureMessageRecovery and ALG_RSA_SHA_ISO9796_MR on the Java Card side.

If you want message recovery you may have to use the Bouncy Castle library at the Java side.
by horse dream
Thu Nov 26, 2015 11:42 pm
Forum: Communication
Topic: how to get geolocation data from the SIM card
Replies: 1
Views: 6278

Re: how to get geolocation data from the SIM card

Here are two solutions. 1. EVENT_DOWNLOAD_LOCATION_STATUS. Register this event on install method, and applet will receive the event when there is location update in processToolkit method. 2. PROVIDE_LOCAL_INFORMATION proactive command, with command qualifier set to '00' ( Location Information / MCC,...
by horse dream
Thu Nov 26, 2015 11:25 pm
Forum: Algorithm School
Topic: Can I clear the algorithm instance?
Replies: 1
Views: 5502

Re: Can I clear the algorithm instance?

Yes, you can clear the instance by setting it to NULL.
by horse dream
Thu Nov 19, 2015 8:27 am
Forum: Card Products
Topic: How to use eJava Token on my computer with LINUX OS
Replies: 1
Views: 6622

Re: How to use eJava Token on my computer with LINUX OS

Firstly, you should install libccid and pcscd . 1. Insert the eJava Token into your computer, and use "usb-devices" to get the VID and PID of FT Java Token ( VID: 096E PID: 080F). 2. Then edit the libccid config. file sudo vi /etc/libccid_Info.plist Add Java Token's VID to " ifdVendor...
by horse dream
Mon Nov 16, 2015 10:33 pm
Forum: Questions & Answers
Topic: Dwefault Applet on Card
Replies: 1
Views: 5043

Re: Dwefault Applet on Card

When you install your applet, you can set your applet as the default selected applet. There is a handy tool-pyAPDUTool that can reach your goal. You can download it from here . When you click the "Install" button, the " Install" dialog box will pop up and you can set your applet ...
by horse dream
Tue Nov 10, 2015 3:35 am
Forum: Questions & Answers
Topic: Source code of WalletDemo / Terminal-side programming
Replies: 1
Views: 6426

Re: Source code of WalletDemo / Terminal-side programming

The process of issuing card is as follows, 1. Upload Wallet.cap file. 2. Install Wallet Applet instance. ps: If the GP key is not the default key (0x40~0x4F), you should assign the GP key. When installing Wallet Applet, you should also set the PIN, which is the Password on the application interface....
JavaCard OS : Disclaimer