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Search found 78 matches

by BirdKing
Thu May 09, 2019 8:35 am
Forum: Questions & Answers
Topic: 69 82 Security status not satisfied
Replies: 4
Views: 135

Re: 69 82 Security status not satisfied

Maybe you should establish secure channel.
by BirdKing
Thu May 09, 2019 8:33 am
Forum: Questions & Answers
Topic: What's the difference between APDU and TPDU?
Replies: 16
Views: 1362

Re: What's the difference between APDU and TPDU?

There is a new way to implement T0 extend APDU. Applet can send T0 envelope command by ThrowIt function. In this way, whether the card support T0 or not, applet can simulate T0 extend APDU.
by BirdKing
Mon Apr 08, 2019 10:44 pm
Forum: Questions & Answers
Topic: What's the difference between APDU and TPDU?
Replies: 16
Views: 1362

Re: What's the difference between APDU and TPDU?

yes, T0 evelope command is packaged by application Layer on PC.The tool does not determine if the device is an APDU level. If I want extend APDU, I should implement envelope command.
by BirdKing
Mon Apr 01, 2019 6:56 pm
Forum: Questions & Answers
Topic: T0 envelope command
Replies: 0
Views: 152

T0 envelope command

T0 implements extendAPDU by envelope commands. I'm not clear about envelope commands.
How do the envelope commmands work?
by BirdKing
Mon Apr 01, 2019 6:52 pm
Forum: Questions & Answers
Topic: What's the difference between APDU and TPDU?
Replies: 16
Views: 1362

Re: What's the difference between APDU and TPDU?

For APDU level, do we need achieve T0 envelope commands ?
by BirdKing
Tue Mar 19, 2019 11:05 pm
Forum: Questions & Answers
Topic: What's the difference between APDU and TPDU?
Replies: 16
Views: 1362

Re: What's the difference between APDU and TPDU?

The IFSC is dedicated to T=1. For APDU level, maxCCIDMessageLenth decided fsc length. In fact,we can send any length by only need to take care of this length smaller than maxCCIDmessageLength.
by BirdKing
Fri Mar 15, 2019 6:05 am
Forum: Questions & Answers
Topic: What's the difference between APDU and TPDU?
Replies: 16
Views: 1362

Re: What's the difference between APDU and TPDU?

There are two variables: IFSC and maxCCIDmessageLength in In CCID class descripter. Which factor plays a decisive role in determining the length of CCID subcontracting?
by BirdKing
Fri Mar 15, 2019 5:58 am
Forum: Questions & Answers
Topic: What's the difference between APDU and TPDU?
Replies: 16
Views: 1362

Re: What's the difference between APDU and TPDU?

The response command to '61' was wrong. When I corrected this error, this phenomenon did not recur.
by BirdKing
Fri Mar 15, 2019 5:51 am
Forum: Questions & Answers
Topic: How to process "GetSlot" command
Replies: 2
Views: 259

Re: How to process "GetSlot" command

A solution is when card received a CCID command it would turn on the timer in USB IRQ. If timer interrupted CCID send wtx request command util the ccid start to process CCID command.
by BirdKing
Fri Mar 15, 2019 5:45 am
Forum: Questions & Answers
Topic: Is there any way to get the EEPROM size of a Java Card?
Replies: 3
Views: 383

Re: Is there any way to get the EEPROM size of a Java Card?

Note, the return value type of getAvailableMemory() is short. It max value 32767. If getAvailableMemory() returned 32767, you should called this method again to check wether the card has more memory.
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