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 Marcat
Mon Feb 26, 2018 5:22 am
Forum: Questions & Answers
Topic: upload CAP file failed?
Replies: 3
Views: 14275

Re: upload CAP file failed?

rainly wrote:What's the Java Card version of the CAP file you build? The Javacard version supported by JCOP10/18 V2.3.1 is JC221 and is a lower JavaCard version. Maybe the JavaCard version of CAP file is too high.

Yes, it was the Javacard version problem, thank you.
by Marcat
Mon Feb 12, 2018 2:37 am
Forum: Questions & Answers
Topic: upload CAP file failed?
Replies: 3
Views: 14275

Re: upload CAP file failed?

The card I used is JCOP10/18 v2.3.
by Marcat
Wed May 24, 2017 10:16 pm
Forum: Questions & Answers
Topic: Choose which: extended length or chaining?
Replies: 3
Views: 7155

Re: Choose which: extended length or chaining?

Tarantino wrote:Does your card support both chaining and extended length APDU? I suggest you to use extended length APDUs.


Thank you for your help, Tarantino.

My card supports both chaining and extended length APDU. But I would like to know why you suggest me to use extended length APDU.
by Marcat
Tue Feb 07, 2017 2:33 am
Forum: Algorithm School
Topic: How to generate DES key without setting it in advance
Replies: 3
Views: 8798

Re: How to generate DES key without setting it in advance

tay00000 wrote:Remember to wipe the buffer once you have called the setKey() or by overwriting data or generating another random to lose the data and prevent accidental leak of key material.


Thank you very much for your kind tip. I will pay attention to it.

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