Search found 38 matches
- Thu Sep 03, 2020 7:29 am
- Forum: Questions & Answers
- Topic: what does GP key mean
- Replies: 2
- Views: 6534
Re: what does GP key mean
Thank you fo the link.
- Wed Sep 02, 2020 1:32 pm
- Forum: Questions & Answers
- Topic: what does GP key mean
- Replies: 2
- Views: 6534
what does GP key mean
what does GP key mean, are these the default keys (404142434445464748494A4B4C4D4E4F) or is it a key to encoded in the card which is not part of the three keys (S-ENC, C-MAC, DEK)? if i want to change default key, i need to create cryptogram ? i need to calculate RSA key ? is the card automatic calcu...
- Mon Aug 31, 2020 6:08 pm
- Forum: Questions & Answers
- Topic: [resolved]GET_BALANCE return 6E 00 or 6F 00
- Replies: 5
- Views: 12788
Re: GET_BALANCE return 6E 00 or 6F 00
resolved, i have replaced this line
apdu.sendBytes((short)0, (short)4);
by
apdu.sendBytes((short)0, (short)2);
apdu.sendBytes((short)0, (short)4);
by
apdu.sendBytes((short)0, (short)2);
- Mon Aug 31, 2020 5:28 pm
- Forum: Questions & Answers
- Topic: [resolved]GET_BALANCE return 6E 00 or 6F 00
- Replies: 5
- Views: 12788
[resolved]GET_BALANCE return 6E 00 or 6F 00
Hi, i have an applet, running on simulator or on real card, method getbalance return always 6E00 veryfy pin i ok credit is ok debit is ok change is ok but getbalance return 6E00 the code: package PackageWallet ; import javacard.framework.APDU; import javacard.framework.Applet; import javacard.framew...
- Sun Aug 30, 2020 11:13 pm
- Forum: Questions & Answers
- Topic: [resolved]Insert parameter with JCIDE
- Replies: 3
- Views: 7123
Re: [resolved]Insert parameter with JCIDE
everything is working fine now. Thank you.
- Sun Aug 30, 2020 11:05 pm
- Forum: Questions & Answers
- Topic: [resolved]Insert parameter with JCIDE
- Replies: 3
- Views: 7123
[resolved] Insert parameter with JCIDE
I do not understand but now it works, I can check the pin code that I put in parameter, and change it. CODE: package PackageWallet ; import javacard.framework.*; public class AppletWallet extends Applet { /* constants declaration */ // code of CLA byte in the command APDU header final static byte Wa...
- Sun Aug 30, 2020 10:25 pm
- Forum: Questions & Answers
- Topic: [resolved]Insert parameter with JCIDE
- Replies: 3
- Views: 7123
[resolved]Insert parameter with JCIDE
Hi, is it possible to install parameters to applet using JCIDE instead of using gp.exe or GPShell.exe, it is in order to test with the JVM (JAVACOS Virtual contact). Thanks for your help. Edit1 : I have found, when i install applet on debug, i can put parameter, but i have an error: my parameter is ...
- Fri Aug 28, 2020 1:48 pm
- Forum: Questions & Answers
- Topic: [RESOLVED][J2A040] v2.41 and initialisation question
- Replies: 8
- Views: 14554
[RESOLVED][J2A040] v2.41 and initialisation question
Hi, 1) If I initialize my card with just the command 00A4040010 C238E449F725B1510EAA699550CABA16, I can download an applet, install it, and use it with pyAdpuTool and even with a client program developed in C # for example. The keys will be the default ones. 2) On the other hand, if after initializi...
- Thu Aug 27, 2020 1:43 pm
- Forum: Questions & Answers
- Topic: pre-personalization on a J2A040 card
- Replies: 4
- Views: 11947
Re: pre-personalization on a J2A040 card
You mean that just by initializing the card with the 00A4040010 TK KEY command, in my case is a J2A040, we can download applets and use it to develop with the default keys, so there is no need for the pre-personalized the card, to learn javacard language at home we can develop a client who uses the ...
- Thu Aug 27, 2020 10:17 am
- Forum: Questions & Answers
- Topic: [RESOLVED]Which smart card reader for javacardos?
- Replies: 1
- Views: 5683
[RESOLVED]Which smart card reader for javacardos?
Hi, I wanted to know if these smart card readers (PC/SC CCID) that I own work with javacard. ACS ACR88 ACS ACR38U Athena ASEDrive IIIe V2 USB 0 I ask this question because I have doubts about the compatibility if not, are there smart card readers that work nice to javacard standards JCOP GlabalPlatf...