Post-Quantum Privacy-Preserving Provable Data Possession Scheme Based on Smart Contracts

Table 1

Smart contracts , , and .

Storage contract		Compensation contract		Verification contract
File’s name	FN	File’s name	FN	File’s name	FN
File’s hash	FH	File’s hash	FH	File’s hash	FH
Upload time	UT	Receive time	RT	Proof
Storage fee	SF	Compensation fee	CF	Storage contract
DO’s address		DO’s address		Compensation contract
CSP’s address		CSP’s address		Verification fee	VF
DO’s signature		CSP’s signature		CSP’s address
Contract content: Promise; If; Pay SF from to		Contract content: Promise; If; Pay CF from to		Verifier’s address
				CSP’s signature
				Contract content: (1) Execute the algorithm ProofVerify; If; , then activate the contract; If; , then activate the contract; (2) Pay VF from to