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.

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by popmun09
Fri Feb 26, 2016 5:42 am
Forum: Questions & Answers
Topic: How to read data from my applet under my scenario
Replies: 1
Views: 4742

Re: How to read data from my applet under my scenario

- Is there any other storage methods the applet is using for data storage?

A: It can also store data in ISO7816 file format.

- For the scenario I mentioned, how can I read data from applet?

A: If you know nothing about the APDUs of the applet, you can not read data from the applet.
by popmun09
Fri Feb 26, 2016 5:34 am
Forum: Algorithm School
Topic: How to store private Key into applet
Replies: 1
Views: 8007

Re: How to store private Key into applet

RSA is designed in such a way that private key will never leave the place where it is created. You can do as follows: 1. Prepare an APDU carrying the private key (two components, you can configure this with P1 and P2 parameters). 2. On the arrival of these APDU, try to create an RSAPrivateKey object...
by popmun09
Wed Feb 17, 2016 2:42 am
Forum: Card Products
Topic: keys on card
Replies: 6
Views: 12312

Re: keys on card

Riddle wrote:Another question:

These keys are only used for Card Pesonalization. Once the card has been personalized, these keys will never be used any more. Am I right?


In my opinion, they will never be used anymore after being personalized. But I am not sure.
by popmun09
Wed Feb 17, 2016 2:34 am
Forum: Card Products
Topic: keys on card
Replies: 6
Views: 12312

Re: keys on card

Riddle wrote:Hi bro,

As this key is given by card issuer, can I change it according to my requirement?


Yes, you can change them. You can use "PUT KEY " command and refer to GP spec for more information.
by popmun09
Wed Feb 17, 2016 2:17 am
Forum: Card Products
Topic: keys on card
Replies: 6
Views: 12312

Re: keys on card

You are right. The Issuer Security Domain is a GlobalPlatform concept.
The key of ISD is basic for the card, which allows you to create security domains and do other operations.
by popmun09
Wed Feb 17, 2016 2:03 am
Forum: Card Products
Topic: How to implement native java method in javacard?
Replies: 2
Views: 6996

Re: How to implement native java method in javacard?

AIK, native methods for javacards can't be written by javacard users, only by the Card OS manufacturer.

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