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Search found 15 matches
- Mon Jan 23, 2017 3:56 am
- Forum: Card Products
- Topic: DESFire card and JavaCard
- Replies: 1
- Views: 9772
DESFire card and JavaCard
When we use smatcard in our project, which one we should select? For DESFire card: Need one reader to support it; Write the client application for it; (But the command are not popular known by developers) The price of DESFire card is about $2.5 per piece. For JavaCard: Here are more reader can suppo...
- Wed Mar 23, 2016 9:01 am
- Forum: Questions & Answers
- Topic: a little confused about "Default selected"
- Replies: 4
- Views: 10832
Re: a little confused about "Default selected"
I also think that after I installed the applet with the default selected application privilege, I can send command even if the applet is not selected.
But it seems that we are wrong.
But it seems that we are wrong.
- Tue Mar 08, 2016 6:18 am
- Forum: Algorithm School
- Topic: two methods in class Cipher(): update() and doFinal()
- Replies: 2
- Views: 9636
two methods in class Cipher(): update() and doFinal()
I know that there are two methods in class Cipher(): update() and doFinal().
But what is the update() doing? What about doFinal()? Would anybody give me a brief and simple explanation?
But what is the update() doing? What about doFinal()? Would anybody give me a brief and simple explanation?
- Wed Feb 24, 2016 5:36 am
- Forum: Algorithm School
- Topic: How to store private Key into applet
- Replies: 1
- Views: 8975
How to store private Key into applet
Hi all! It's me again. Recently, I am working on a project where RSA key pair will be generated at server and Private key needs to be stored in applet which can be used for further crypto operation. But I don't know how to store required private key data to the applet. Would anybody give me some poi...
- Tue Dec 08, 2015 1:30 am
- Forum: Card Products
- Topic: What are secure channel keys in java card used to do?
- Replies: 1
- Views: 9350
What are secure channel keys in java card used to do?
As I found by google, ENC stands for Encryption, MAC stands for Message Authentication Code and DEK stands for Data Encryption Key.
I want to know when these three secure channel keys are used. What are they used to do? Are all these keys used in every communication step?
I want to know when these three secure channel keys are used. What are they used to do? Are all these keys used in every communication step?
- Tue Dec 01, 2015 6:30 am
- Forum: Card Products
- Topic: How to change the card Historical Bytes?
- Replies: 6
- Views: 39959
How to change the card Historical Bytes?
I know that changing Historical bytes is limited to Pre-Personalization step. But I found a method named setATRHistBytes in the GlobalPlatform APIs today. This is description. setATRHistBytes public static boolean setATRHistBytes (byte[] buffer, short bOffset, byte bLength) This method sets the hist...
- Fri Nov 27, 2015 5:02 am
- Forum: Questions & Answers
- Topic: Store data in EEPROM or RAM?
- Replies: 5
- Views: 18683
Store data in EEPROM or RAM?
When I develop a java card applet, what data should I store in the EEPROM? What data should I store in the RAM?
What's difference between them?
What's difference between them?
- Wed Nov 25, 2015 7:59 am
- Forum: Questions & Answers
- Topic: Could the CAP file be uploaded and installed into card successfully?
- Replies: 1
- Views: 7331
Could the CAP file be uploaded and installed into card successfully?
If my applet uses an API that COS doesn't support, could the CAP file of my applet be uploaded and installed into the card successfully?
- Mon Nov 23, 2015 7:47 am
- Forum: Card Products
- Topic: Is there any way to get JC version of Java Card.
- Replies: 2
- Views: 9944
Is there any way to get JC version of Java Card.
As the subject said, how can I get java card version from a java card?
- Fri Nov 20, 2015 8:02 am
- Forum: Questions & Answers
- Topic: How to generate a 2.1.1 Compliant CAP file with my 2.2.2 JCKit
- Replies: 1
- Views: 7232
How to generate a 2.1.1 Compliant CAP file with my 2.2.2 JCKit
I have just finished a java card applet and want to upload it to a java card. But the java card supports Java card 2.1.1 standard. So I am searching a method to generate a 2.1.1 Compliant CAP file with my 2.2.2 JCKit. Could somebody give me any pointers ?