Outsourcing Hierarchical Threshold Secret Sharing Scheme Based on Reputation

Table 2

Feature comparison of schemes.

	Maleka et al. [29]	Harn et al. [30]	Pilaram and Eghlidos [10]	Traverso et al. [17]	Our scheme
Fairness	No	Yes	Yes	No	Yes
Number of rounds	Multiple rounds	Multiple rounds	One round	One round	One round
Trusted third party	No	No	Yes	Yes	No
Interactive	Yes	Yes	No	Yes	No
Computation	User	User	User	User	CSP
Communication cost	O (tk)	O (t)	O (1)	O (t)	O (1)