Research on the Ranked Searchable Encryption Scheme Based on an Access Tree in IoTs

Table 1

Functional analysis comparison.

Features	MRSE [20]	Sun [24]	Yang [23]	Li[25]	This scheme
Access control	×	✓	×	✓	✓
Multiple keywords	✓	✓	✓	✓	✓
Semantic extension	×	×	✓	×	✓
Relevance ranking	✓	×	✓	✓	✓
Multi-user	×	✓	×	✓	✓