A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods

Table 1

Searchable encryption schemes with various functionalities.

	Symm.	Asymm.	Ranked keyword	Range	Phrase	Fuzzy keyword	Similarity	Subset
Ranked keyword query [4, 13, 14, 25]	Yes	—	Yes	—	Possible	Possible	Possible	—
Range query [22, 23]	—	Yes	—	Yes	—	Possible	Possible	Possible
Phrase query [20, 21]	Yes	—	Possible	—	Yes	Possible	Possible	—
Fuzzy keyword query [3, 16, 17]	Yes	—	Possible	—	Possible	Yes	Possible	—
Wildcard query [26]	—	Yes	—	Possible	—	Yes	Possible	Possible
Similarity query [18, 19]	Yes	—	Possible	—	Possible	Possible	Yes	—
Subset query [22]	—	Yes	—	Possible	—	Possible	Possible	Yes
This paper	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes