Genuine and Secure Identity-Based Public Audit for the Stored Data in Healthcare Cloud

Table 2

Comparison of computation time in the auditing phase.

Scheme	The number of the challenged blocks
	Computation time in Yu et al.’s scheme (s)	0.644	0.9733	2.31
Computation time in Zhang et al.’s scheme (s)	0.109	0.161	0.333
Computation time in our scheme (s)	0.616	0.9367	2.02