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Good evening everyone,
i am working on a consumables kit for a lab device. At the end it is the same as with a Dymo printer or any office printer. The units manufacturer wants a monopoly for selling these kits.
One of their measures is the implementation of a ISO15693 Tag.
It is password protected. But i managed to sniff a lot of traffic - in the moment i missed the password. However i expect to solve this later on.
Today there is a larger obstacle: the data seem to be encrypted. In each cycle the machine reads 63 data blocks and writes them just after it. The first 28 blocks never change, the following do.
I know that the tag stores the following information:
a) serial number of kit
b) manufacturing date and/ or shelf life
c) date of first analysis
d) number of analysis made and/ or still available
I have not been able to identify these data yet. Can anyone give me a hint to help out of being stuck?
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