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daparic/readme.md

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Created October 15, 2025 07:38
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Initialize unfused JCOP card
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readme.md 
java -jar gp.jar -d \
  -a 00a4040010C238E449F725B1510EAA699550CABA16 \
  -a 00f00000 \
  -a c0d6030510404142434445464748494a4b4c4d4e4f \
  -a c0d6032110404142434445464748494a4b4c4d4e4f \
  -a c0d6033D10404142434445464748494a4b4c4d4e4f

APDU commands explanation:

  • 00a4040010C238E449F725B1510EAA699550CABA16
    • 00a4040010 => Initialize Card
    • C238E449F725B1510EAA699550CABA16 => Transport Key (TK)
  • 00f00000 => Factory Reset, Open to Initialize
  • c0d6030510404142434445464748494a4b4c4d4e4f => Set key slot 0 to default test key 404142434445464748494A4B4C4D4E4F
  • c0d6032110404142434445464748494a4b4c4d4e4f => Set key slot 2 to default test key 404142434445464748494A4B4C4D4E4F
  • c0d6033D10404142434445464748494a4b4c4d4e4f => Set key slot 3 to default test key 404142434445464748494A4B4C4D4E4F

Tested card: https://pt.aliexpress.com/item/32856082491.html

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daparic commented Oct 15, 2025

https://curriegrad2004.ca/2017/02/dealing-with-unfused-jcop-java-cards-sold-from-aliexpress-or-ebay/

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