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
Wed Apr 05, 2017 11:42 pm
Forum: Shopping FAQ
Topic: UID of Mifare clone 1K
Replies: 3
Views: 23964

UID of Mifare clone 1K

For Mifare clone 1K, How many bytes of the card UID, 7bytes or 4 bytes?
by lostsiwonlw
Sun Feb 05, 2017 8:41 pm
Forum: Questions & Answers
Topic: Question about Applet Deletion
Replies: 2
Views: 6311

Re: Question about Applet Deletion

There is no problem to let applet A know that applet B is deleted.
But I don't think applet A can delete all the in formation related to applet B .
by lostsiwonlw
Wed Dec 21, 2016 10:39 pm
Forum: Reader
Topic: R502 card reader problem
Replies: 6
Views: 13033

Re: R502 card reader problem

I have done an interesting test on R502 reader before. I inserted one contact card in contact card slot and meanwhile put a contactless card on the reader, I started pyApduTool twice to connect the cards separately (one connects the contact card and the other connects the contactless card ). I found...
by lostsiwonlw
Sat Oct 08, 2016 10:11 pm
Forum: pyResMan
Topic: pyResMan change ATR
Replies: 4
Views: 26244

Re: pyResMan change ATR

Fenny19 wrote:I need to change ATR of a java J2A080 card as I do please help me


You need to ask your card provider for the commands that are used to change ATR.
by lostsiwonlw
Sat Oct 08, 2016 2:27 am
Forum: pyResMan
Topic: pyResMan change ATR
Replies: 4
Views: 26244

Re: pyResMan change ATR

pyResMan can not provide the command that used to change ATR. Only the card manufacturer has the related command.
by lostsiwonlw
Wed Sep 07, 2016 3:54 am
Forum: Questions & Answers
Topic: Error when debugging my applet in JCIDE
Replies: 6
Views: 21024

Re: Error when debugging my applet in JCIDE

What are the following APDU commands used to do?
by lostsiwonlw
Tue Sep 06, 2016 4:59 am
Forum: Questions & Answers
Topic: Searching for a cheaper card
Replies: 3
Views: 6859

Re: Searching for a cheaper card

For small java card project, JCOP card is indeed more expensive than other java cards.

If there is a type of card that can meet our needs and meanwhile the price is lower than standard card, that would be good.
by lostsiwonlw
Tue Aug 16, 2016 3:14 am
Forum: Questions & Answers
Topic: R502 SPY v.s. R502 reader
Replies: 1
Views: 5519

R502 SPY v.s. R502 reader

I saw a product called R502 SPY, whose appearance is similar with R502 reader.

I wonder what is the difference between the two products?

Thanks!
by lostsiwonlw
Thu Jul 07, 2016 5:48 am
Forum: Questions & Answers
Topic: How to unlock my card
Replies: 1
Views: 6166

Re: How to unlock my card

From the Card Life Cycle State Transitions diagram in GP spec, if your card state is CARD_LOCKED, you can just reverse card state to SECURED. Then everything will be back to normal.

card_life_cycle_state.png
by lostsiwonlw
Wed Jul 06, 2016 11:26 pm
Forum: Questions & Answers
Topic: getS(byte[] buffer, short offset)
Replies: 3
Views: 7488

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

Girr16 wrote:But what makes me s little surprised is that we can indeed get the private key via this method.


The card won't stop you from getting the private key in any way. It provides you more flexibility but you also have more responsibility.
JavaCard OS : Disclaimer