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 10 matches

by z535539710
Sun Apr 09, 2017 11:31 pm
Forum: Questions & Answers
Topic: javacard project setting problem
Replies: 3
Views: 6811

Re: javacard project setting problem

I'v worked it out by setting my export path, thanks for your help~
by z535539710
Sat Apr 08, 2017 4:36 am
Forum: Questions & Answers
Topic: javacard project setting problem
Replies: 3
Views: 6811

javacard project setting problem

In my javacard prj, I created two packages: com.cert and com.sim, and sim imported cert package then I get error like this: "error: export file cert.exp of package com.cert not found. " "[ INFO: ] conversion completed with 1 errors and 0 warnings." In fact the cert.exp was succes...
by z535539710
Fri Apr 07, 2017 11:25 pm
Forum: Questions & Answers
Topic: How to regist JAVACOS Tool
Replies: 3
Views: 9102

How to regist JAVACOS Tool

Hi I have downloaded the JCIDE, and how can I register JCIDE?

I have tried with the JAVACARDOS account to register JCIDE, but it failed with "login error"
by z535539710
Thu Apr 06, 2017 3:02 am
Forum: Questions & Answers
Topic: AES-CBC mode with padding
Replies: 4
Views: 9362

Re: AES-CBC mode with padding

tay00000 & kosullivan thanks very much for your answers and this really help a lot~
by z535539710
Fri Mar 31, 2017 3:50 am
Forum: Questions & Answers
Topic: AES-CBC mode with padding
Replies: 4
Views: 9362

AES-CBC mode with padding

Hi I have a question about AES-CBC Algorithm After decrypting the data with Cipher algorithm ALG_AES_CBC_ISO9797_M2, how can I get the real data without those paddings? Since the padding data are some like "80 00 ...00 ", if the real data also contain the same content, how can I distinguis...
by z535539710
Mon Mar 20, 2017 2:27 am
Forum: Questions & Answers
Topic: beginTransaction & commitTransaction
Replies: 3
Views: 7707

Re: beginTransaction & commitTransaction

Imagine a scenario where you decide to write very important data. One example being provisioning a bunch of cryptographic keys to the cards and then you accidentally trip over the card reader and dislodge it from the host computer. Now you have half provisioned keys and you cannot assert their inte...
by z535539710
Thu Mar 16, 2017 5:32 am
Forum: Questions & Answers
Topic: beginTransaction & commitTransaction
Replies: 3
Views: 7707

beginTransaction & commitTransaction

Hi all

I wonder when should I use beginTransaction & commitTransaction functions during javacard applet developing? Any common scenes? :?

your answer is very appreciated :!:
by z535539710
Wed Mar 15, 2017 10:38 pm
Forum: Questions & Answers
Topic: javacard applet develop question- profile decode
Replies: 5
Views: 9233

Re: javacard applet develop question- profile decode

thanks very much for your suggestion :D
by z535539710
Wed Mar 15, 2017 9:32 pm
Forum: Questions & Answers
Topic: javacard applet develop question- profile decode
Replies: 5
Views: 9233

Re: javacard applet develop question- profile decode

1 To check if the memory space is enough, required algorithm is supported, or ..., before you run applet commands. 2 Call api JCSystem.requestObjectDeletion() at the end of the command, unreferenced objects will be reclaimed before next APDU processing, and use api JCSystem.isObjectDeletionSupporte...
by z535539710
Wed Mar 15, 2017 4:00 am
Forum: Questions & Answers
Topic: javacard applet develop question- profile decode
Replies: 5
Views: 9233

javacard applet develop question- profile decode

1. Why it is recommended to create all new objects at applet installation time in javacard? 2. Since my javacard applet is designed to decode profiles encoded in TLV structure using DER encoding,I have to new objects dynamically during the decoding process. how can I release the objects when the dec...
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