期刊
MATHEMATICAL PROBLEMS IN ENGINEERING
卷 2022, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2022/5040766
关键词
-
资金
- Key Technologies R&D Program of Henan Province [192102210295, 212102210084]
This paper proposes a novel privacy-preserving cross-zone ride-matching scheme, CRide, which achieves high ride-matching accuracy and acceptable efficiency by extending the zone range and introducing ciphertext technology.
Although online ride-hailing supplies the nearest taxi matching for riders, the potential leakage of riders' hobbies and physical condition raises privacy concerns. Since most of the privacy-preserving schemes do limited matching of riders and drivers in the same zone, in this paper, we propose a novel privacy-preserving cross-zone ride-matching scheme, namely, Cride, which extends one zone into multiple neighboring zones. Based on the zone division of a city, CRide allows distance computation between rider and driver across adjacent zones in the encrypted domain. Furthermore, towards efficiency improvement, a ciphertext packing technique is introduced. Theoretical analysis and experimental results suggest that CRide achieves a high ride-matching accuracy and acceptable efficiency without leaking privacy.
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