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Search found 234 matches

by mabel
Mon Nov 02, 2015 2:36 am
Forum: Questions & Answers
Topic: How to Write on a smart card?
Replies: 6
Views: 2620

Re: How to Write on a smart card?

I use JCIDE to build my applet and JCIDE shall generate the CAP file automatically under the project path(e.g. C:\workspace\test\bin\patest\javacard) if your project is built successfully. So if you just want to get the CAP file, just create a project in JCIDE , paste you applet code and build your ...
by mabel
Wed Oct 28, 2015 11:09 pm
Forum: Questions & Answers
Topic: How to Write on a smart card?
Replies: 6
Views: 2620

Re: How to Write on a smart card?

Are you referring to upload and install the applet into your smartcard? If Yes, you can use PyAPDUTool to do this. And then send/receive APDU command to communicate with your applet via this tool. If you need to develop an applet by yourself, this tool can help. In addition, you can look through the...
by mabel
Sat Oct 24, 2015 11:20 pm
Forum: Reader
Topic: doubts about using BRatetools V1.0.1.1
Replies: 1
Views: 735

doubts about using BRatetools V1.0.1.1

Hey guys. I got the bR301 smartcard reader yesterday. It's really an excellent smartcard reader. But now i have some doubts when using BRatetools V1.0.1.1 to test Blutooth rate . I select the data.ini file toghther with the tool via OpenScript button. After I click the "Start" button, all ...
by mabel
Mon Oct 12, 2015 5:29 am
Forum: Questions & Answers
Topic: How to store secure key within the smart card applet
Replies: 1
Views: 866

Re: How to store secure key within the smart card applet

You can use predefined arrays or applet specific installation parameter to instantiate your keys during creation of the applet. Then the private keys shall be stored.
The GP card specification has provided the ways of key loading and content loading. Please take a look at this specification.
by mabel
Mon Oct 12, 2015 5:03 am
Forum: Algorithm School
Topic: How to speed up RSA encryption/decryption in java card
Replies: 2
Views: 1044

How to speed up RSA encryption/decryption in java card

I have already completed a java card applet implementing RSA encryption/decryption in java card.
But I find that RSA 2048 takes much more time than RSA 512 and RSA 1024.
Is there any way to speed up the RSA encryption/decryption?
by mabel
Thu Sep 17, 2015 2:42 am
Forum: Questions & Answers
Topic: Delete card manager applet on the java card ?
Replies: 2
Views: 922

Re: Delete card manager applet on the java card ?

Hey there,

You can not delete the card manager, since the Card Manager is the card component responsible for all card administration and card system service functions. It handles the application management of the card.
by mabel
Thu Sep 17, 2015 1:46 am
Forum: Questions & Answers
Topic: java card program problem: how to make code simpler and more efficient
Replies: 1
Views: 611

java card program problem: how to make code simpler and more efficient

I am writing code for java card encryption. Here is part of the code. switch (buf[ISO7816.OFFSET_P1]){ case (byte) 0x01: switch (buf[ISO7816.OFFSET_P2]){ case (byte) 0x01: doSingleDES(apdu, DESKey1); return; case (byte) 0x02: doSingleDES(apdu, DESKey2); return; case (byte) 0x03: doSingleDES(apdu, DE...
by mabel
Mon Aug 31, 2015 3:18 am
Forum: Questions & Answers
Topic: main() in java card applet
Replies: 1
Views: 625

main() in java card applet

I am studying webcard material(see the attachment). And I saw the main() function in the java card applet.
Why is the main() function in the java card applet ?
I have never saw this in other applets. How strange it is.
by mabel
Mon Aug 31, 2015 2:49 am
Forum: Questions & Answers
Topic: two questions about waitExtension
Replies: 1
Views: 716

two questions about waitExtension

I have two questions about waitExtension function.
Q1: If the card doesn't implement automatic timer mechanism, how long is the waiting time waitExtension function request from CAD?
Q2: If there is a long-playing processing, how should I request ?
Thanks a lot.
by mabel
Thu Aug 27, 2015 5:48 am
Forum: Questions & Answers
Topic: Unable to load Shareable Interface Package into the java card --Error: 6A80
Replies: 1
Views: 718

Unable to load Shareable Interface Package into the java card --Error: 6A80

Recently,when I loaded the packages associated with the shareable interface, I got the error code "6A 80",which meant Wrong Data. But I don't know the reason.
The attachment is my project.

Can anyone help me solve this issue ?
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