Fine-Grained Task Access Control System for Mobile Crowdsensing

Table 2

Feature comparison.

	[26]	[28]	[30]	[31]	[32]	Our system
Hidden access policy	✗	✓	✓	✗	✓	✓
Ciphertext search	✓	✗	✗	✗	✓	✓
Pre-decryption	✗	✗	✓	✗	✗	✓
Access structure			Tree	And, Or	And

✓ represents the scheme owns the feature. ✗ represents the scheme does not own the feature.