Fine-Grained Task Access Control System for Mobile Crowdsensing

Table 1

Some notations used in this paper.

Notation	Description
	Two multiplicative cyclic groups.
	Group of integers modulo .
	The bilinear map:
	The AND-gate access policy .
	The attribute set .
	The attribute set satisfies the access policy .
	The number list .
	The maximum number of wildcards, positive attributes, and negative attributes, respectively.