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 LozCodes
Mon Feb 20, 2023 1:11 pm
Forum: Questions & Answers
Topic: LENGTH_EC_FP_256 cannot be resolved or is not a field
Replies: 0
Views: 20740

LENGTH_EC_FP_256 cannot be resolved or is not a field

I have the following code:

import javacard.security.KeyBuilder;

public KeyPair key = new KeyPair(KeyPair.ALG_EC_FP, KeyBuilder.LENGTH_EC_FP_256);

but am getting the error message 'LENGTH_EC_FP_256 cannot be resolved or is not a field'

What could be the reason for this?

Thank you
by LozCodes
Fri Mar 25, 2022 11:02 am
Forum: Questions & Answers
Topic: Different ChipPack
Replies: 0
Views: 19210

Different ChipPack

Where can I find different ChipPacks?
by LozCodes
Tue Mar 22, 2022 6:09 am
Forum: Questions & Answers
Topic: GP init update failed. recv: 67 00
Replies: 1
Views: 9613

GP init update failed. recv: 67 00

I have am getting this error when trying to download a cap file onto my smart card. When I use the select command I get this response: Send: 00 A4 04 00 00 Recv: 6F 10 84 08 A0 00 00 01 51 00 00 00 A5 04 9F 65 01 FF 90 00 Then when I try to download a cap file I get this error: Download Cap begin......
by LozCodes
Mon Mar 21, 2022 9:55 am
Forum: Questions & Answers
Topic: Generate .cap file
Replies: 1
Views: 9575

Generate .cap file

How do I force JCIDE to generate a new cap file?

I am running JCIDE 7.3.0.0

I am trying to load a cap file onto a smartcard, however the cap file is not up to date with my most recent code.

Is there a way to force it to update?
by LozCodes
Thu May 27, 2021 7:18 am
Forum: Questions & Answers
Topic: Sending more that 255 bytes of payload
Replies: 0
Views: 7660

Sending more that 255 bytes of payload

Hi there, I have an applet where I have implemented extended length and the applet is able to send extended length response APDUs - however when I try and send a command APDU with a payload of more than 255 bytes I get the message 'APDU error: The command apdu is not correct.' My understanding is th...
by LozCodes
Fri Mar 12, 2021 6:08 am
Forum: Questions & Answers
Topic: Memory size of compiled applet
Replies: 1
Views: 7139

Memory size of compiled applet

Is there a way to find out the size of a compiled applet?
by LozCodes
Tue Feb 23, 2021 9:43 am
Forum: Questions & Answers
Topic: How to Transmit a Public Key Through an APDU
Replies: 0
Views: 7661

How to Transmit a Public Key Through an APDU

Hi there, I am trying to transmit an RSA public key through an APDU, so that U can verify it off card. I have been trying to store the public key in a byte array but I can't work out how to do this. Is there a better way to do this? Even if there is, how would I go about storing a public key in a by...
by LozCodes
Tue Jan 12, 2021 7:15 am
Forum: User Guide
Topic: Some tips for JCIDE - JCIDE Debugger
Replies: 10
Views: 40992

Re: Some tips for JCIDE - JCIDE Debugger

Thank you
by LozCodes
Wed Dec 16, 2020 6:38 am
Forum: User Guide
Topic: Some tips for JCIDE - JCIDE Debugger
Replies: 10
Views: 40992

Re: Some tips for JCIDE - JCIDE Debugger

I'm having trouble putting a quick watch on a variable - when I select a variable and right click quick watch is greyed out, does anyone know how to fix this?
by LozCodes
Mon Nov 09, 2020 5:56 am
Forum: Questions & Answers
Topic: Unable to register JCIDE
Replies: 1
Views: 6937

Unable to register JCIDE

I am running into an error message when trying to register JCIDE. When clicking 'Register on line now' a login box pops up - on entering my login details I get the message 'login error!'. I have tried resetting my password, so I don't think that that is the issue. Is anyone else having the same trou...
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