Search found 12 matches
- Wed Jun 07, 2017 11:05 pm
- Forum: Questions & Answers
- Topic: How to show APDU sent/received
- Replies: 1
- Views: 4915
How to show APDU sent/received
Is there any way form javax.smartcardio to show the APDUs sent/received between another PC-based tool and the card? Thanks.
- Mon Feb 20, 2017 5:39 am
- Forum: Questions & Answers
- Topic: Help to recommend appropriate "token"
- Replies: 7
- Views: 10580
Re: Help to recommend appropriate "token"
Another thing to point out is to review through your JavaCard applet again to look for areas to optimize with as little compromise to security as possible. Most applet codes are very bulky due to lack of optimization and recently, I have been working on a commercial applet which seems to not fit in...
- Mon Feb 20, 2017 5:33 am
- Forum: Questions & Answers
- Topic: Help to recommend appropriate "token"
- Replies: 7
- Views: 10580
Re: Help to recommend appropriate "token"
If that is the case, it seems that there are little java card with USB reader form in the market. But here is a method. You can have a try. In fact, Debug.cap component file in the CAP file will not be downloaded into card when downloading the whole CAP file into card. And usually Debug.cap occupie...
- Thu Feb 16, 2017 5:49 am
- Forum: Questions & Answers
- Topic: Help to recommend appropriate "token"
- Replies: 7
- Views: 10580
Re: Help to recommend appropriate "token"
Thanks for your reply. But we want the java card with USB reader form,just like ejava token.
- Thu Feb 16, 2017 4:07 am
- Forum: Questions & Answers
- Topic: Help to recommend appropriate "token"
- Replies: 7
- Views: 10580
Help to recommend appropriate "token"
Hi all. We have just finished an applet and the CAP file size is approximately 120K. Now we are trying to choose the appropriate java card candidate. If fact, we would like to use java card with USB form, like ejava token. But it's NVM 110k is smaller than 120K. So would anyone recommend other appro...
- Sat Dec 17, 2016 2:53 am
- Forum: Questions & Answers
- Topic: unlock the ISD
- Replies: 4
- Views: 9449
Re: unlock the ISD
rena2019 wrote:what command did you sent to ISD?
=>80 F0 80 0F 07 A0 00 00 01 51 00 00
- Thu Dec 15, 2016 11:47 pm
- Forum: Questions & Answers
- Topic: unlock the ISD
- Replies: 4
- Views: 9449
unlock the ISD
I know that each transition from state to state is irreversible except from CARD_ LOCKED to SECURED, only to the ISD. That is, the Card Life Cycle state transition from SECURED to CARD_LOCKED is reversible. I tried to LOCK the ISD with the following APDU: >> 80 F0 80 7F 07 A0 00 00 01 51 00 00 The c...
- Mon Aug 29, 2016 10:12 pm
- Forum: Questions & Answers
- Topic: the security of my applet
- Replies: 2
- Views: 5981
Re: the security of my applet
rena2019 wrote:removing applet is only possible if somebody knows the keys. copying is never possible even if you know the keys
Many thanks, rena2019. If I set PIN code of javacard, will it improve my applet security? Or could you tell me the best way to increase security of my applet? Thanks
- Mon Aug 29, 2016 2:07 am
- Forum: Questions & Answers
- Topic: the security of my applet
- Replies: 2
- Views: 5981
the security of my applet
I have a question about the security of my applet. If changing GP key on my javacard, then nobody can remove or
copy my applet. Am I right?
copy my applet. Am I right?
- Tue Jul 26, 2016 8:18 am
- Forum: Questions & Answers
- Topic: JCVM
- Replies: 1
- Views: 6019
JCVM
Does each javacard applet correspond to one JCVM instance? As we all know, each java program have one JVM instance. Is this same with JCVM?
- If not, it can show that there is only one JCVM and one JCRE as well. If that is the case, how does the applets work in one JCVM ?
- If not, it can show that there is only one JCVM and one JCRE as well. If that is the case, how does the applets work in one JCVM ?