Search found 40 matches
- Thu Aug 30, 2018 2:11 am
- Forum: Questions & Answers
- Topic: GP Card Manager Failed - PyAPDU Tool
- Replies: 2
- Views: 6987
Re: GP Card Manager Failed - PyAPDU Tool
You must install and select the applet after the CAP file has been successfully downloaded.
- Tue Apr 17, 2018 10:07 pm
- Forum: Questions & Answers
- Topic: Multiply big numbers
- Replies: 8
- Views: 15415
Re: Multiply big numbers
You can specifically describe the problem in here, so that others can help you better
- Thu Mar 22, 2018 4:48 am
- Forum: Reader
- Topic: SD Card reader not working after Windows 10 upgrade
- Replies: 4
- Views: 32264
Re: SD Card reader not working after Windows 10 upgrade
Is your windows system 64-bit or 32-bit? Or you can go to ASUS website to download the driver and reinstall it.
- Sun Feb 25, 2018 10:03 pm
- Forum: Questions & Answers
- Topic: Is there any way to find out how much memory size has my applet taken up?
- Replies: 6
- Views: 11601
Re: Is there any way to find out how much memory size has my applet taken up?
You can using the function of JCSystem.getAvailableMemory(byte memoryType) to obtains the amount of memory of the specified type.
- Fri Feb 16, 2018 5:06 am
- Forum: Questions & Answers
- Topic: Is there any way to find out how much memory size has my applet taken up?
- Replies: 6
- Views: 11601
Re: Is there any way to find out how much memory size has my applet taken up?
You can write another applet to get your applet size, as following steps:
- 1, Get card memory size named M1;
- 2, Load your applet to the card and get card memory size named M2;
- 3, Your applet used memory size named M, and M = M1 - M2
- 1, Get card memory size named M1;
- 2, Load your applet to the card and get card memory size named M2;
- 3, Your applet used memory size named M, and M = M1 - M2
- Tue Jan 23, 2018 3:45 am
- Forum: Algorithm School
- Topic: How to compute MAC
- Replies: 13
- Views: 51071
Re: How to compute MAC
stanneraustin wrote:This i know already.
http://xionghuilin.com/?p=326 this explain some part of puzzel.
i posted more details at here too https://stackoverflow.com/questions/247 ... tools?rq=1
still not returning valid C-MAC for another command then EXTERNAL AUTHENTICATE
For the EXTERNAL AUTHENTICATE command MAC verification, the ICV is set to zero
- Mon Jan 15, 2018 3:30 am
- Forum: PKIApplet
- Topic: PKIApplet Instructions & Applet Source Code
- Replies: 5
- Views: 30222
Re: PKIApplet Instructions & Applet Source Code
I downloaded the javacardsign.zip file, and it can be opened normally:
- Thu Nov 09, 2017 2:28 am
- Forum: Applets Development Guide
- Topic: Help function does not work in Debug Shell-run
- Replies: 6
- Views: 11745
Re: Help function does not work in Debug Shell-run
I also encountered this error , looking forward to solve.
- Tue Oct 04, 2016 6:44 am
- Forum: Questions & Answers
- Topic: What's the command used to do in WalletDemoApplet?
- Replies: 3
- Views: 7673
Re: What's the command used to do in WalletDemoApplet?
Card uses this command to generate a random number and tranimit it to the outside card. The outside card application will generate a string of ciphertext using this random number and the agreed algorithm and then transmit it to the card when executing the next command "80 82 00 00 Lc + Cipher&q...
- Mon Aug 22, 2016 11:55 pm
- Forum: Algorithm School
- Topic: Implement CRC algorithm
- Replies: 6
- Views: 12040
Re: Implement CRC algorithm
So, I don't understand the C#. 