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 Girr16
Tue Apr 18, 2017 6:02 am
Forum: Questions & Answers
Topic: FUSE command
Replies: 3
Views: 7515

Re: FUSE command

Thank you so much for your answer, It helps a lot.
by Girr16
Mon Apr 17, 2017 3:16 am
Forum: Questions & Answers
Topic: FUSE command
Replies: 3
Views: 7515

FUSE command

I am a little curious about FUSE command.After performing FUSE command, can I still upload applet in java card and also can I change card manager keys? Thanks
by Girr16
Thu Aug 25, 2016 5:21 am
Forum: Shopping FAQ
Topic: Place your contact way conspicuously
Replies: 1
Views: 6417

Place your contact way conspicuously

Dear JavaCardOS Official, A small advise to your website, add your contact information at some obvious position of your website. I took great trouble to find your contact information(javacardos@gmail.com). It's not friendly. So I think it's necessary to display your contact way directly somewhere. J...
by Girr16
Fri Jul 29, 2016 6:04 am
Forum: Questions & Answers
Topic: Determine Secure Channel key set index within applet
Replies: 2
Views: 6543

Re: Determine Secure Channel key set index within applet

So that is it! Anyway, thanks for your quick reply.
by Girr16
Fri Jul 29, 2016 4:49 am
Forum: Questions & Answers
Topic: Determine Secure Channel key set index within applet
Replies: 2
Views: 6543

Determine Secure Channel key set index within applet

Hey all!

Is there any method to determine Secure Channel key set index or version within applet?
The ProviderSecurityDomain object doesn't have such a property.

Thanks!
by Girr16
Tue Jul 05, 2016 11:32 pm
Forum: Questions & Answers
Topic: getS(byte[] buffer, short offset)
Replies: 3
Views: 7492

Re: getS(byte[] buffer, short offset)

Thank you for your answer.

But what makes me s little surprised is that we can indeed get the private key via this method.
by Girr16
Tue Jul 05, 2016 5:00 am
Forum: Questions & Answers
Topic: getS(byte[] buffer, short offset)
Replies: 3
Views: 7492

getS(byte[] buffer, short offset)

I am studying ECC on javacard. I cannot understand the related API method: ECC_Private_key.png - getS(byte[] buffer, short offset) : this method returns the value of the secret key in plaintext form. IMO, the private key is supposed to be secret, and no one can get it. Why does this return the key?
by Girr16
Fri Jun 24, 2016 11:17 pm
Forum: Questions & Answers
Topic: Doubts about Package AID and Package token
Replies: 3
Views: 7250

Re: Doubts about Package AID and Package token

How can I set the token value? If package tokens are overlapped, will it cause exception?
by Girr16
Fri Jun 24, 2016 5:53 am
Forum: Questions & Answers
Topic: Doubts about Package AID and Package token
Replies: 3
Views: 7250

Doubts about Package AID and Package token

I am a little confused about two concepts: Package AID and Package token. To me, they play the same ID role. Is there some difference between them? Could anyone clarify these concepts for me?
by Girr16
Mon Jun 20, 2016 10:37 pm
Forum: Questions & Answers
Topic: How can I make my applet auto selectable?
Replies: 1
Views: 5474

How can I make my applet auto selectable?

I can succeed to load and install my applet on smart card. But I have to send SELECT APDU command before other operation every time the card is powered up.
How can I make my applet auto selectable on card powerup?
JavaCard OS : Disclaimer