A Novel Security Authentication Protocol Based on Physical Unclonable Function for RFID Healthcare Systems

Table 1

Symbols used in the C-RAPA protocol.

Symbols	Representations
	The camouflage identifier of the reader in the -th authentication process, with the length of
	The camouflage identifier of the tag in the -th authentication process, with the length of
	Random number generated by the reader in the authentication process, with the length of
	Random number generated by the tag in the authentication process, with the length of
	Random number generated by the cloud-based database in the authentication process, with the length of
	In the -th session, the shared key used between the tag and the cloud-based database, with the length of
	In the -th session, the shared key used between the reader and the cloud-based database, with the length of
	XOR operation by bit
	One-way hash encryption operation of
	Get the response from PUF module when input
	AES encryption of data with the key
	AES decryption of data with the key