A Blockchain-Based Secure Radio Frequency Identification Ownership Transfer Protocol

Table 1

Three major types of blockchain.

Metrics	Public	Private	Consortium (semiprivate)
Access permissions	Open	Restricted	Restricted
Network	Fully decentralized	Partially decentralized	Partially decentralized
Platforms	Bitcoin, Ethereum, Litecoin, etc.	Hyperledger, Ripple, etc.	Bankchain, B3i, Enterprise Ethereum Alliance (EEA), etc.
Transaction validator	Anyone	Single entity	Multiple entities
Participant identity	Unknown	Known	Unknown
Required transaction time	High	Low	Low
Transaction throughput	Low	High	High
Transaction speed	Slow	Fast	Fast
Security	Achieved through consensus algorithms such as proof of work (PoW), proof of stake (PoS), proof of capacity (PoC), etc.	Achieved through predetermined nodes and access restrictions	Achieved through predetermined nodes and access restrictions
Transparency	Fully transparent across the network	Restricted to some nodes of the network	Fully transparent across the network