Table 8 Comparison of access control modes.

From: Blockchain-based proxy re-encryption access control method for biological risk privacy protection of agricultural products

Characterisation

Jianbiao et al.34

Gechang et al.35

Wenjun et al.36

Wang et al.37

This study

Blockchain-based

√

√

√

 × 

√

fine-grained access control

√

 × 

√

√

√

privacy protection

√

√

√

√

√

Support for property update

√

 × 

 × 

√

√

Data tampering prevention

√

 × 

√

√

√

smart contract

√

 × 

 × 

 × 

√

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