Search found 9 matches
- Wed Apr 18, 2018 11:58 pm
- Forum: Other Tools
- Topic: I want a tool to get bytecode speed time
- Replies: 4
- Views: 18867
Re: I want a tool to get bytecode speed time
Sorry,the PDF file was blocked. If you need it, you can send me a private message.
- Wed Apr 18, 2018 11:57 pm
- Forum: Other Tools
- Topic: I want a tool to get bytecode speed time
- Replies: 4
- Views: 18867
Re: I want a tool to get bytecode speed time
In the early years of my research on java card,I have used a java card performance software named Mesure(yes,it's not "measure").But I have no bin release files or source code now. I remember this software tool have some function about byte code speed of java card. There are two pictures a...
- Tue Mar 20, 2018 5:54 am
- Forum: Algorithm School
- Topic: How to generate random data?
- Replies: 2
- Views: 21881
Re: How to generate random data?
You can reference this first,maybe it is useful.
viewtopic.php?f=31&t=1265&p=4068&hilit=random#p4068
viewtopic.php?f=31&t=1265&p=4068&hilit=random#p4068
- Tue Feb 27, 2018 11:35 pm
- Forum: Questions & Answers
- Topic: About Get Data Command
- Replies: 3
- Views: 8419
Re: About Get Data Command
I copied some paragraph from GP211 and emphasized some words. I think that maybe you are right.But I am still puzzled about "It does not mandate".Is there anybody to explain it? The following meanings apply to SHALL , SHOULD , and MAY in this document: • SHALL indicates that the statement ...
- Mon Feb 26, 2018 2:18 am
- Forum: Questions & Answers
- Topic: Is there any way to find out how much memory size has my applet taken up?
- Replies: 6
- Views: 11768
Re: Is there any way to find out how much memory size has my applet taken up?
There are two API functions relating with MEMORY SIZE in following (which is v1 and v2 that copy from package javacard.framework.JCSystem ). v1:public static short getAvailableMemory(byte memoryType) throws SystemException //javacard 2.2.2 v2:public static void getAvailableMemory(short[] buffer, sho...
- Wed Nov 22, 2017 11:29 pm
- Forum: Reader
- Topic: The Square card reader
- Replies: 2
- Views: 22382
Re: The Square card reader
Maybe the new version firmware program of the reader has some bugs when it has been releaseed.
- Thu Oct 19, 2017 5:50 am
- Forum: Communication
- Topic: How to get source code from the cap file
- Replies: 4
- Views: 28963
Re: How to get source code from the cap file
It's possible in theory.
If the cap file without the DEBUG component,the decompiling source(.java) files will lost many informations.
It will be difficult to read or understand.
If the cap file without the DEBUG component,the decompiling source(.java) files will lost many informations.
It will be difficult to read or understand.
- Thu Oct 19, 2017 5:37 am
- Forum: Questions & Answers
- Topic: Change ATR value
- Replies: 4
- Views: 11179
Re: Change ATR value
There is a simple way without reading any SPEC
https://www.javacardos.com/tools/atr.html
https://www.javacardos.com/tools/atr.html
- Thu Sep 28, 2017 12:01 am
- Forum: Questions & Answers
- Topic: APDU generation
- Replies: 3
- Views: 8444
Re: APDU generation
Maybe you should notice the setting about the baud rate of serial communication. If you give more detail about your current test environment, it will more easily for others to help you.