Multiauthority Attribute-Based Keyword Search over Cloud-Edge-End Collaboration in IoV

Table 1

Functional comparison of different system.

System	HP-CPABKS [29]	VKSE [30]	LSABE-MA [31]	CEABKS-MA
Keyword search
Attribute revocation
Multi-authority
High efficiency
Access structure	LSSS	Tree	LSSS	LSSS