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P2 KASE A2 - Privacy Preserving Key Aggregate Searchable Encryption supporting Authentication and Access Control on Multi-Delegation
2020
IET Information Security
Delegation is a technique that allows a subject receiving a delegation (the delegatee) to act on behalf of the delegating subject (the delegator). Although the existing Key Aggregate Searchable Encryption (KASE) schemes support delegation of search rights over any set of ciphertexts using a key of constant-size, two critical issues still should be considered. Firstly, an adversary can intercept the aggregate key or query trapdoor from the insecure communication channels involving the cloud
doi:10.1049/iet-ifs.2020.0070
fatcat:upgucuexqvaujosyymqwghlszq