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Search found 59 matches

by chico0609
Thu Jun 21, 2018 2:05 am
Forum: Questions & Answers
Topic: How to know the precise size of id class 1, micro sim, nano sim?
Replies: 2
Views: 111

Re: How to know the precise size of id class 1, micro sim, nano sim?

FYI:
The following fig shows all the SIM format described in the specifications: Full-size vs Mini-SIM vs Micro-SIM vs Nano-SIM vs Embedded-SIM.

sim card format and size.jpg
by chico0609
Sat Sep 30, 2017 1:52 am
Forum: Questions & Answers
Topic: How to install applet to java cards
Replies: 2
Views: 416

Re: How to install applet to java cards

a. Do I need to select the OPEN -application before sending Load+Install commands? Yes. You need to select the Issuer Security Domain. b. And also, do I need to open some kinds of secure channel? Yes. You need to open a secure channel. This process includes the INITIALIZE UPDATE and EXTERNAL AUTHEN...
by chico0609
Tue Aug 15, 2017 5:00 am
Forum: Questions & Answers
Topic: How to implement host application
Replies: 1
Views: 270

Re: How to implement host application

If you use serial port Reader, you could transmit and receive APDUs directly via RS232.
For USB reader, you could do same via USB API.
by chico0609
Tue Aug 15, 2017 4:53 am
Forum: Questions & Answers
Topic: ERROR INFO: Transaction failed? Why?
Replies: 3
Views: 442

Re: ERROR INFO: Transaction failed? Why?

Tips:
1. You shouldn't call apdu.setIncomingAndReceive() systematically, as it will process P3 as an incoming data length (Lc).
2. You are calling setOutgingLength() inside a loop, it will result in an APDUException with ILLEGAL_USE reason .
by chico0609
Fri Jul 28, 2017 6:07 am
Forum: Questions & Answers
Topic: OCF or Javacard.Framework
Replies: 3
Views: 384

Re: OCF or Javacard.Framework

Any reference to file systems in OCF would be to allow the client application to communicate with a file system card. You would still have to have a card that supports the command set for a file system card.
by chico0609
Fri Jul 28, 2017 2:51 am
Forum: Questions & Answers
Topic: RSA Decryption Problem
Replies: 2
Views: 353

Re: RSA Decryption Problem

The problem may be because when you converted the text you are encrypting in the second example to a number, the result is a negative number. Since RSA works by converting the key and text into large integers and performing a mathematical operation on them. You might be better off using something li...
by chico0609
Fri Jul 28, 2017 2:23 am
Forum: Questions & Answers
Topic: OCF or Javacard.Framework
Replies: 3
Views: 384

Re: OCF or Javacard.Framework

OCF is an off-card API for communicating with cards and readers with Java.

The card you have should have the org.globalplatform package and won't have OCF. If you want your applet to be portable across different cards, you should probably stick with javacard.framework.
by chico0609
Thu Jul 06, 2017 5:15 am
Forum: Questions & Answers
Topic: How to add test scripts in TCK
Replies: 2
Views: 433

Re: How to add test scripts in TCK

Quoted from the TCK documentation: JC2 Some Conformance Tests may have properties that may be changed.Properties that can be changed are identified in the TCK configuration interview. Apart from changing such properties and other allowed modifications described in this User’s Guide (if any), no sour...
by chico0609
Mon Jun 19, 2017 6:12 am
Forum: Questions & Answers
Topic: How to use APDU instance in install method
Replies: 3
Views: 410

Re: How to use APDU instance in install method

It's a little hard to reach your goal. Why do you need it in the install method?

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