[Retracted] Merging RFID and Blockchain Technologies to Accelerate Big Data Medical Research Based on Physiological Signals

Table 3

The comparisons of the performance analysis and safety performance.

Performance	Protocol 1	Protocol 3	Protocol 2	Protocol 4	Protocol 5
F0	No	Yes	No	Yes	No
F1	3H + Xor	3PRNG + Xor	2H + Xor	2PRNG + Xor	1PRNG+2Xor
F2	No	Yes	No	Yes	Yes
F3	No	Yes	No	Yes	Yes
F4	No	Yes	No	Yes	Yes
Attack types	Protocol 1	Protocol 3	Protocol 2	Protocol 4	Protocol 5
R1	No	Yes	No	Yes	No
R2	Yes	Yes	Yes	Yes	Yes
R3	Yes	Yes	Yes	Yes	Yes
R4	Yes	Yes	Yes	Yes	Yes
R5	No	Yes	No	Yes	Yes
R6	No	Yes	Yes	Yes	Yes

F0: provision of scalability and efficiency; F1: storage cost (tag); F2: blockchain-enabled; F3: cloud computing-enabled; F4: fog computing-enabled. R1: key leak attacks resistance; R2: replay attacks resistance; R3: desynchronization attacks resistance; R4: reader impersonation attacks resistance; R5: tracking attacks resistance; R6: tag impersonation attacks resistance.