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 55 matches

by lostsiwonlw
Fri Feb 19, 2016 5:11 am
Forum: Questions & Answers
Topic: Questions about a script file for java card
Replies: 1
Views: 4568

Re: Questions about a script file for java card

Q1: What is this script for ? to change ISD state from OP_READY to SECURED? A1: Yes! Your are right. The script is used to change ISD state from OP_READY to SECURED. Q2: Is the operation of the above script reversible by another script? A2: No. The change of state from SECURED to OP_READY is irrever...
by lostsiwonlw
Fri Feb 19, 2016 4:45 am
Forum: Questions & Answers
Topic: the methods of init and verify PIN in org.globalplatform VS in javacard.framework
Replies: 1
Views: 4715

Re: the methods of init and verify PIN in org.globalplatform VS in javacard.framework

1. The java card pin is standalone. You can use it as you wish in your app. You can even have more than one. 2. The GP pin is global to the card. you update in app 1, the change is reflected in app 2. But it is probably less secure, since anyone can design an app that will change the pin of other ap...
by lostsiwonlw
Wed Jan 13, 2016 5:25 am
Forum: Questions & Answers
Topic: CMS digital signature with JavaCard
Replies: 1
Views: 5108

CMS digital signature with JavaCard

I want to create a detached digital signature in standard format (CMS / CAdES-EPES). I create hash from document (SHA-256), get hash algorithm ID and give it all into a message. Detached signature is generated for this message(RSA-512) and sent back. I can verify this signature using pure Java code:...
by lostsiwonlw
Tue Dec 01, 2015 3:02 am
Forum: Algorithm School
Topic: What's SDA and DDA?
Replies: 1
Views: 6305

What's SDA and DDA?

"JavaCard supports 2048 bits key length only in DDA.", said in a java card doc provided by card manufacturer.
So my question is what is DDA and SDA? How can I install applet in this mode.

ps. I only know that
SDA: Static Data Authentication
DDA: Dynamic Data Authentication
by lostsiwonlw
Tue Dec 01, 2015 2:43 am
Forum: Algorithm School
Topic: Got 6E00 when implementing RSA encryption
Replies: 2
Views: 7624

Got 6E00 when implementing RSA encryption

I am writing a javacard applet. RSA public and private keys are generated in constructor. public RSAApplet() { keyPair = new KeyPair(KeyPair.ALG_RSA_CRT, KeyBuilder.LENGTH_RSA_2048); keyPair.genKeyPair(); rsaPrivateKey = (RSAPrivateKey) keyPair.getPrivate(); rsaPublicKey = (RSAPublicKey) keyPair.get...
by lostsiwonlw
Wed Nov 04, 2015 8:30 am
Forum: Questions & Answers
Topic: Get the source code of the cap file
Replies: 2
Views: 7003

Re: Get the source code of the cap file

I am going to answer my own question.
The info of the JCOP card is JCOP242R2. And this test item passed. I can go on my test.
by lostsiwonlw
Tue Oct 27, 2015 8:06 am
Forum: Questions & Answers
Topic: came across an error when using GPShell
Replies: 1
Views: 5119

came across an error when using GPShell

I came across an error when GPShell sent the command. Does anyone know the origin of this problem? The error information is as follows: establish_context establish_context command time: 0 ms card_connect -reader "Feitian R502 Contact Reader 0" card_connect -reader "Feitian R502 Contac...
by lostsiwonlw
Wed Sep 02, 2015 2:12 am
Forum: Algorithm School
Topic: How to let my card support ECC_F2M
Replies: 1
Views: 5943

How to let my card support ECC_F2M

I have a javacard only supporting ECC_FP . But the project I am working with need the card to support TYPE_EC_F2M .
What can I do to let my card support ECC_F2M ?
Is there any solution?
by lostsiwonlw
Mon Aug 31, 2015 5:56 am
Forum: Other Tools
Topic: please recommend some useful white box testing tools
Replies: 1
Views: 6380

please recommend some useful white box testing tools

Could anybody recommend any useful white box testing tools for java card applet ?
Especially java code coverage tool.
Any recommendation is grateful.
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