Ldasip: A Lightweight Dynamic Audit Approach for Sensitive Information Protection in Cloud Storage

Algorithm 4

Audit proof generation based on data masking algorithm.

	Inputs: audit challenge , file authentication label σ[i], user file block m, system parameter PP, root node signature γ, and deputy root nodes signature set Γ
	Output: Audit proof P
	AUDIT PROOF GENERATION(T,μ)
	T = 1;μ = 0;P=NULL;
	FOR i = 1 TO TPAAuditElement.length I {
	;
	;
	}
	P = {T,μ,L,H(zi),path,γ,Γ1≤i ≤ I};
	Return P;