How to change ATR

Hi all!

At now I'm starting to develop with Java Card. I create a simple applet and run it in simulator (jcwde & apdutool). In the apdutool log i saw what Answer To Reset has following value:

0x3b 0xf0 0x11 0x00 0xff 0x00

I want to change theese bytes to my own value. Could you tell me how that can be done?

Thank you!

[355 byte] By [SammyFra] at [2007-10-3 5:12:08]

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# 1

Hi As i known,For javacard . The ATR can change only in initialize phase and can not change in personalize phase.

Sakada_Chaowanuea at 2007-7-14 23:18:32 >

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# 2

Pls note that these bytes mean something (communication parameters) and that you cannot freely format them. Hoever, if the the method setATRHistBytes() of Global Platform Class openplatform.OPSystem applies to your card, you should be able to set the historical bytes to your specification. Refer to ISO 7816-3 and 7816-4 for the format of the ATR and the historical bytes.

forum__usera at 2007-7-14 23:18:32 >

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