Offline/Online Outsourced Attribute-Based Encryption with Partial Policy Hidden for the Internet of Things

Table 1

Comparison of performance.

Scheme	Policy hidden	Composite order	Fully secure	Offline/online key generation	Offline/online encryption	Outsourced decryption	Verify
Zhang et al. [9]	✓	✓	✓	✗	✗	✗	✗
Li [11]	✓	✗	✗	✓	✓	✗	✗
Lewko and Waters [14]	✗	✓	✓	✗	✗	✗	✗
Waters [22]	✗	✗	✗	✓	✓	✗	✗
Liu et al. [23]	✗	✗	✗	✓	✓	✓	✓
Wang et al. [24]	✗	✓	✓	✓	✓	✓	✗
Ours	✓	✓	✓	✓	✓	✓	✓