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題名 Somewhat semantic secure public key encryption with filtered-equality-test in the standard model and its extension to searchable encryption
作者 左瑞麟
Huang, Kaibin
Tso, Ray-Lin
Chen, Yu Chi
貢獻者 資科系
關鍵詞 Public key cryptography; Security of data; Semantic Web; Semantics; Testing; Ciphertexts; Equality tests; Searchable encryptions; Semantic security; Standard model; Cryptography
日期 2017-11
上傳時間 31-Aug-2017 13:48:24 (UTC+8)
摘要 Public key encryption with equality test (PKE-ET) is a public key encryption with an extra functionality, so-called `equality test`. An authorized third party can verify the equivalence between two ciphertexts encrypted under different public keys, while the decryption keeps unavailable. However, the privacy of most existing PKE-ET schemes drop to one-way security owing to the `equality test` functionality. In this work, we propose a novel architecture called filtered equality test (FET), which `filtered` denotes only few receiver-selected messages can be equality tested. In such model, we propose an equality test scheme, PKE-FET, which is the first one to be proved (somewhat) semantic secure. The concrete PKE-FET scheme and its rigorous security proof in the standard model are proposed. Furthermore, FET is also applied to construct a searchable encryption named PE-MKS, which is inherently proved semantic secure (so called the indistinguishability against chosen keyword attacks) in the standard model.
關聯 Journal of Computer and System Sciences, 89, 400-409
資料類型 article
DOI http://dx.doi.org/10.1016/j.jcss.2017.06.001
dc.contributor 資科系zh_TW
dc.creator (作者) 左瑞麟zh_TW
dc.creator (作者) Huang, Kaibinen_US
dc.creator (作者) Tso, Ray-Linen_US
dc.creator (作者) Chen, Yu Chien_US
dc.date (日期) 2017-11
dc.date.accessioned 31-Aug-2017 13:48:24 (UTC+8)-
dc.date.available 31-Aug-2017 13:48:24 (UTC+8)-
dc.date.issued (上傳時間) 31-Aug-2017 13:48:24 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/112443-
dc.description.abstract (摘要) Public key encryption with equality test (PKE-ET) is a public key encryption with an extra functionality, so-called `equality test`. An authorized third party can verify the equivalence between two ciphertexts encrypted under different public keys, while the decryption keeps unavailable. However, the privacy of most existing PKE-ET schemes drop to one-way security owing to the `equality test` functionality. In this work, we propose a novel architecture called filtered equality test (FET), which `filtered` denotes only few receiver-selected messages can be equality tested. In such model, we propose an equality test scheme, PKE-FET, which is the first one to be proved (somewhat) semantic secure. The concrete PKE-FET scheme and its rigorous security proof in the standard model are proposed. Furthermore, FET is also applied to construct a searchable encryption named PE-MKS, which is inherently proved semantic secure (so called the indistinguishability against chosen keyword attacks) in the standard model.en_US
dc.format.extent 515540 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) Journal of Computer and System Sciences, 89, 400-409en_US
dc.subject (關鍵詞) Public key cryptography; Security of data; Semantic Web; Semantics; Testing; Ciphertexts; Equality tests; Searchable encryptions; Semantic security; Standard model; Cryptographyen_US
dc.title (題名) Somewhat semantic secure public key encryption with filtered-equality-test in the standard model and its extension to searchable encryptionen_US
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1016/j.jcss.2017.06.001
dc.doi.uri (DOI) http://dx.doi.org/10.1016/j.jcss.2017.06.001