Research Article
A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods
Algorithm 2
Encryption (symmetric):
Enc.
| Input: the encryption key , the documents ). | | Output: | | (1) : encrypted documents ). | | (2) : global searchable structure (index-based). | | (3) : local functional structures ). | | Method: | | (1) compute ← SSE·Enc). Here ). | | (2) for each document and the corresponding () do | | (3) scan for all words to form a word list ). | | (4) for each word () in do | | (5) compute SSE·Token). | | (6) compute ). | | (7) end for | | (8) let ). | | (9) for each functional component () do | | (10) compute ·Build). | | (11) end for | | (12) append ) to . | | (13) end for | | (14) let and ), and output ). |
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