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題名 On the Anonymity of Multi-Receiver Identity-Based Encryption Based on Fujisaki-Okamoto Transformation
作者 曾一凡
Tseng, Yi-Fan
Fan, Chun-I
Sung, Cheng-Wei
貢獻者 資科系
關鍵詞 Fujisaki–Okamoto transformation ; anonymity ; chosen-ciphertext attacks ; identity-based encryption ; insider attacks
日期 2019-07
上傳時間 2-Sep-2020 09:14:40 (UTC+8)
摘要 In 2010, Fan et al. first introduced the concept of anonymous multi-receiver identity-based encryption (AMRIBE). They used the concept of Fujisaki–Okamoto transformation (F.O. transformation) to support their proof in random oracle models. Recently, many works on this topic have been proposed. Most of them adopted Fujisaki–Okamoto transformation to achieve the indistinguishability of encryptions under multi-ID, chosen-ciphertext attacks (IND-MID-CCA) security. However, we find out that these schemes do not gain anonymity against insider attacks. In this manuscript, we use a sequence of games to prove that any AMRIBE scheme will fail to gain anonymity under chosen-ciphertext attacks and chosen-plaintext attacks if the IND-MID-CCA security is proven using Fujisaki–Okamoto transformation.
關聯 International Journal of Foundations of Computer Science, Vol.30, No.4, pp.493-509
資料類型 article
DOI https://doi.org/10.1142/S0129054119400094
dc.contributor 資科系
dc.creator (作者) 曾一凡
dc.creator (作者) Tseng, Yi-Fan
dc.creator (作者) Fan, Chun-I
dc.creator (作者) Sung, Cheng-Wei
dc.date (日期) 2019-07
dc.date.accessioned 2-Sep-2020 09:14:40 (UTC+8)-
dc.date.available 2-Sep-2020 09:14:40 (UTC+8)-
dc.date.issued (上傳時間) 2-Sep-2020 09:14:40 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/131405-
dc.description.abstract (摘要) In 2010, Fan et al. first introduced the concept of anonymous multi-receiver identity-based encryption (AMRIBE). They used the concept of Fujisaki–Okamoto transformation (F.O. transformation) to support their proof in random oracle models. Recently, many works on this topic have been proposed. Most of them adopted Fujisaki–Okamoto transformation to achieve the indistinguishability of encryptions under multi-ID, chosen-ciphertext attacks (IND-MID-CCA) security. However, we find out that these schemes do not gain anonymity against insider attacks. In this manuscript, we use a sequence of games to prove that any AMRIBE scheme will fail to gain anonymity under chosen-ciphertext attacks and chosen-plaintext attacks if the IND-MID-CCA security is proven using Fujisaki–Okamoto transformation.
dc.format.extent 129 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) International Journal of Foundations of Computer Science, Vol.30, No.4, pp.493-509
dc.subject (關鍵詞) Fujisaki–Okamoto transformation ; anonymity ; chosen-ciphertext attacks ; identity-based encryption ; insider attacks
dc.title (題名) On the Anonymity of Multi-Receiver Identity-Based Encryption Based on Fujisaki-Okamoto Transformation
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1142/S0129054119400094
dc.doi.uri (DOI) https://doi.org/10.1142/S0129054119400094