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 11 matches

by Benli
Tue Jan 29, 2019 10:49 pm
Forum: Questions & Answers
Topic: Searching for a tool that support "PUT KEY"
Replies: 3
Views: 8134

Re: Searching for a tool that support "PUT KEY"

ust try to use pyResman https://www.javacardos.com/tools/pyresman
This tool may have what you need.
by Benli
Tue Dec 04, 2018 11:53 pm
Forum: Algorithm School
Topic: The RSA algorithm of 4096bit keys
Replies: 0
Views: 17057

The RSA algorithm of 4096bit keys

I am learning the RSA algorithm, but I can't find the sample demo about the RSA 4096 bits in the website. Who can share with me?

Thanks
by Benli
Sun Aug 13, 2017 11:33 pm
Forum: Questions & Answers
Topic: ATS value
Replies: 2
Views: 6522

ATS value

For a contact interface, I can at least distinguish T=0/T=1 from ATR value, but how can I get the useful info from contactless interface?
In my opinion, ATS does not provide any useful information.
by Benli
Wed Feb 01, 2017 6:52 pm
Forum: Algorithm School
Topic: Elliptic Curve Cryptography
Replies: 1
Views: 6562

Elliptic Curve Cryptography

I have two questions about Elliptic Curve Cryptography(ECC). private KeyPair keyPairA; private KeyPair keyPairB; keyPairA = KeyPair(KeyPair.ALG_EC_F2M,KeyBuilder.LENGTH_EC_F2M_113); keyPairB = KeyPair(KeyPair.ALG_EC_FP,KeyBuilder.LENGTH_EC_FP_112); Could anyone tell me what is the difference between...
by Benli
Thu Jan 12, 2017 5:27 am
Forum: Questions & Answers
Topic: e-purse sample problem
Replies: 2
Views: 6933

Re: e-purse sample problem

Oops, shame on me.
Thanks for your help.
by Benli
Wed Jan 11, 2017 10:20 pm
Forum: Questions & Answers
Topic: e-purse sample problem
Replies: 2
Views: 6933

e-purse sample problem

I have finished a simple e-purse applet. Here are my code. package cp.sampleapplet; import javacard.framework.*; public class Epurse extends Applet { private short balance; public static final byte CLA = (byte)0x80; public static final byte insCredit = (byte)0xA1; public static final byte insDebit =...
by Benli
Thu Dec 22, 2016 10:59 pm
Forum: Shopping FAQ
Topic: R502 User Guide Manual
Replies: 1
Views: 6797

R502 User Guide Manual

I cannot find R502 user guide , could anyone please send me a copy ? thx
by Benli
Sat Aug 13, 2016 5:05 am
Forum: Shopping FAQ
Topic: SIM reader
Replies: 3
Views: 9044

Re: SIM reader

Thanks for your quick response.

If I buy the SIM reader today, will it be delivered immediately? How long will it arrive Serbia?
by Benli
Sat Aug 13, 2016 3:38 am
Forum: Shopping FAQ
Topic: SIM reader
Replies: 3
Views: 9044

SIM reader

Hi,

If I buy one SIM reader, will it come with a SIM size smart card?

If yes, what's the type of this card?

Thanks& Regards,
Benli
by Benli
Tue Jul 12, 2016 2:41 am
Forum: Questions & Answers
Topic: question about Le in APDU command
Replies: 1
Views: 6177

question about Le in APDU command

Hi friends in here,

I have a question about Le in APDU command.

If I don't know how many data I will have in response, is there any special value of Le for this case?

Thanks.
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