Improved Efficient Privacy-Preserving Certificateless Provable Data Possession Scheme for Cloud Storage

Table 1

Notations.

Notations	Descriptions
	The elliptic curve
	The finite field
	The cyclic group
	Generator of
	Secure hash function
	Public key of the system
	DO’s real identity
	DO’s virtual identity
, , , ,	Random numbers
	DO’s secret key
	DO’s public key
	The identifier of the data block
	The data block
, ,	Intermediate parameters
,	The tags of
	The collection of challenged indexes
	The proof
	The computational cost of one hash
	The computational cost of one addition on
	The computational cost of one multiplication on
	The computational cost of one point addition on
	The computational cost of one point multiplication on