Our Online Store have the new products: RFID antenna board. Currently it can work with
JC10M24R and
JCOP4 card chips.
Compared with normal cards, the antenna board module has a smaller size and fixed holes, which is easy to integrate in the IOT(Internet Of Things) project.
Algorithm School
Moderator: UNKNwYSHSA
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sakkiotto
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by sakkiotto » Thu Oct 27, 2016 11:22 pm
I am trying to implement SCP02 i=15, I can calculate the C-MAC with DES for the external authenticate command without any problem, but I can not calculate the C-MAC for the second command with the same algorithm. Anyone know where the problem exists?
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cprgolds
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by cprgolds » Fri Oct 28, 2016 4:31 am
You might use the wrong ICV.
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tomc2016
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by tomc2016 » Fri Oct 28, 2016 5:03 am
It's possibly because the ICV encryption does not match what your card expects.
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