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https://ah.lib.nccu.edu.tw/handle/140.119/138284
題名: | A Generic Construction of Predicate Proxy Key Re-encapsulation Mechanism | 作者: | 左瑞麟 Tso, Raylin 曾一凡 Tseng, Yi-Fan Liu, Zi-Yuan |
貢獻者: | 資科系 | 關鍵詞: | Predicate encryption ; predicate proxy reencryption ; generic construction ; single-hop ; unidirectional | 日期: | Aug-2020 | 上傳時間: | 9-Dec-2021 | 摘要: | Proxy re-encryption (PRE), formalized by Blaze et al. in 1998, allows a proxy entity to delegate the decryption right of a ciphertext from one party to another without obtaining the information of the plaintext. In recent years, many studies have explored how to construct PRE schemes that support fine-grained access control for complex application scenarios, such as identity-based PRE and attribute-based PRE. Besides, in order to achieve more flexible access control, the predicate proxy re-encryption (PPRE) is further studied. However, existing PPRE is restricted with the inner product predicate function. Therefore, how to realize the PPRE of arbitrary predicate function is still a problem to be solved. In this manuscript, we propose a secure generic construction of predicate proxy key re-encapsulation mechanism built from a “linear” predicate key encapsulation mechanism. Since the secure key encapsulation mechanism can be used as a building block to construct public key encryption, we can obtain a PPRE from our construction. As a result, the results open up new avenues for building more flexible and fine-grained PPRE. | 關聯: | 2020 15th Asia Joint Conference on Information Security (AsiaJCIS) | 資料類型: | conference | DOI: | https://doi.org/10.1109/AsiaJCIS50894.2020.00013 |
Appears in Collections: | 會議論文 |
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