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check the failed authentication counter

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warex
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check the failed authentication counter

Post by warex » Tue Jun 28, 2016 3:14 am

I got some java cards. However, I know nothing about these cards but the card model. Is there any method to check the failed authentication counter? And how can I know if the cards are already blocked due to too much failed tries?
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chico0609
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Re: check the failed authentication counter

Post by chico0609 » Tue Jun 28, 2016 8:18 am

To check if your card is locked, you can send GET STATUS command, it will return Life Cycle State. If the card is locked, it will be in the CARD_LOCKED state
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UNKNwYSHSA
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Re: check the failed authentication counter

Post by UNKNwYSHSA » Tue Jun 28, 2016 11:46 pm

I only know the Sequence Counter of SCP and retry counter of PIN verify.
sense and simplicity
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