While NIST defines many methods for light-weight cryptography, they only define one method for asymmetric encryption - ELLI (Elliptic Light). This uses a prestored private key and a signed version of it, and is defined in ISO/IEC 29192-4:2013/Amd 1:
https://asecuritysite.com/encryption/elli
Does anyone recommend a strong asymmetric method for RFID devices and which uniquely authenticates the tag?
https://asecuritysite.com/encryption/elli
What are the best methods available to identify RFID devices:
Answer : Several methods can be developed and deployed as follows :
Smart Tag Detection technique based on the reader architecture and channel knowledge and analysing antenna architecture for the same like MIMO based chipless RFID system
Asynchronous mode of the RF Trans receiver using Tag collision detection method based on packet format and communication timings in the RFID reader
Crack Detection methods using tampered switches
Maybe you have to define in which device you are going to implement the RFID because the RFID's implementation consideration need a complex requirement analysis
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