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Looking for a java card the full ATR of which can be changeable
Posted: Mon Feb 22, 2016 2:54 am
by mose05
I am finding a kind of java card where the full ATR would be changeable according to my requirement thru some API.
I know this can be done through proxy devices/boards, but it will be much easier to have a card with such capability. Any recommendation or comments?
Re: Looking for a java card the full ATR of which can be changeable
Posted: Mon Feb 22, 2016 9:33 am
by UNKNwYSHSA
You can ask your card provider for this function.
But i want to know your original intention of this requirement?
Re: Looking for a java card the full ATR of which can be changeable
Posted: Mon Feb 22, 2016 2:29 pm
by ThePhoenyx
Please note that all you can change are the "Historical Bytes". The first (I think) 6 bytes are hardware settings. Trying to change those *will* brick your card.
Re: Looking for a java card the full ATR of which can be changeable
Posted: Tue Feb 23, 2016 1:47 am
by mabel
ThePhoenyx wrote:Please note that all you can change are the "Historical Bytes". The first (I think) 6 bytes are hardware settings. Trying to change those *will* brick your card.
As @ ThePhoenyx said,
You can only change the historical bytes via a default selected application. There is no way to change the full ATR.