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.
Card Products
Moderator: horse dream
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mikegigom
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by mikegigom » Sat Mar 26, 2016 4:05 am
My card needs to implement the mutual authentication.
For that purpose the outside card application and the card must share the set of secret keys. The first key is relevant for encryption and the other for the MAC calculation. At this point I am putting these keys on the card during the personalization.
Now my question is if it's secure enough. I read that it is recommended to use derived keys such that only one card is affected if a key is compromised. How can I calculate the derived keys?
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JCaberham
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by JCaberham » Sat Mar 26, 2016 4:28 am
Derived keys are considered more secure. As you said, if the keys for one card is compromised some how, only that card is affected.
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Tarantino
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by Tarantino » Sat Mar 26, 2016 4:39 am
If you have the space and want more secure, you can use a completely random key for card.
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