Search found 10 matches

by Lehrling81
Tue Jul 04, 2017 1:39 am
Forum: Shopping FAQ
Topic: Java card supporting RSA4096
Replies: 4
Views: 13502

Re: Java card supporting RSA4096

You have very very limited option if you want RSA-4096 bit operations. Here is the only one (but very hard to obtain) hardware that supports JavaCard and 4096-bit RSA. I wish you good luck and all the best attempting to obtain these hardware as thee company is known to be very picky on their custom...
by Lehrling81
Thu Jun 29, 2017 11:15 pm
Forum: Shopping FAQ
Topic: Java card supporting RSA4096
Replies: 4
Views: 13502

Java card supporting RSA4096

Is there any card in the online store that support RSA4096? I am going to generate RSA4096 keys on the card.
by Lehrling81
Thu Mar 09, 2017 2:27 am
Forum: Questions & Answers
Topic: Get 0X6F00 with KeyPair(KeyPair.ALG_EC_FP,length)
Replies: 2
Views: 1856

Re: Get 0X6F00 with KeyPair(KeyPair.ALG_EC_FP,length)

It's more likely that your java card doesn't support the algorithm.
by Lehrling81
Wed Mar 23, 2016 8:28 am
Forum: Questions & Answers
Topic: short VS byte
Replies: 1
Views: 1756

short VS byte

I finished an applet . In my code, I have implemented block cipher using bytes type. But then I optimize my code and rewrite encryption algorithm for short values. I also found for short it runs faster than bytes. Why? Another question is which operation is more appropriate for optimization purpose....
by Lehrling81
Thu Dec 31, 2015 3:26 am
Forum: Card Products
Topic: How to read whole the EEPROM?
Replies: 2
Views: 2305

How to read whole the EEPROM?

If I know a javacard's authentication keys, is there any way to read whole the EEPROM at once?
- If yes, how can I do it?
- If no, would you please tell me how to read EEPROM step by step?
by Lehrling81
Wed Dec 23, 2015 5:54 am
Forum: Questions & Answers
Topic: Question about Map implementation
Replies: 1
Views: 1662

Question about Map implementation

As I know, JavaCard 2.2 doesn't have a Map implementation. Java SE HashMap has an hashing function and its variable size could probably cause out of memory errors. What about a constant size Map with a simple hashing relative to its constant size?
by Lehrling81
Wed Dec 16, 2015 5:07 am
Forum: Questions & Answers
Topic: What is the best solution to store dynamic data on smart card?
Replies: 1
Views: 1645

What is the best solution to store dynamic data on smart card?

I would like to know what is the best solution to store dynamic data on smart card. My applet need to store some data which are consist of family, name, picture and description. All these data have dynamic length. I know I should handle dynamic memory management to store these dynamic data. But how ...
by Lehrling81
Thu Nov 26, 2015 5:37 am
Forum: Questions & Answers
Topic: Is it possible to return some data along with the status word 9000 on selecting an applet in javacard?
Replies: 3
Views: 2569

Is it possible to return some data along with the status word 9000 on selecting an applet in javacard?

I was wondering if i could send back some data from the java card applet when it is selected. Since select() method returns a boolean value, I don't know how to return data bytes from it. Can anyone help me with this? i want the applet to return a simple byte array along with the status word 9000 (w...
by Lehrling81
Fri Nov 20, 2015 5:32 am
Forum: Card Products
Topic: Use Blue Tooth through java card code
Replies: 1
Views: 1866

Use Blue Tooth through java card code

I am looking for the way to use Blue Tooth through java card code,
Is there any related blue tooth API in java card?
JavaCard OS : Disclaimer