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政大典藏 > College of Informatics > Department of Computer Science > Periodical Articles > Item 140.119/131403

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/131403

Title:	Enabled/Disabled Predicate Encryption in Clouds
Authors:	曾一凡 Tseng, Yi-Fan Huang, Shi-Yuan Fan, Chun-I
Contributors:	資科系
Keywords:	Predicateencryption;Timed-release;Dataself-destruction;Search;Cloudcomputin
Date:	2016
Issue Date:	2020-09-02 09:14:14 (UTC+8)
Abstract:	Predicate encryption is a cryptographic primitive that provides fine-grained control over access to encrypted data. It is often used for encrypted data search in a cloud storage environment. In this paper, we propose an enabled/disabled predicate encryption scheme, which is the first work that provides timed-release services and data self-destruction (they correspond to the terms “enabled” and “disabled,” respectively). Owing to these properties, the sender can set the readable/unreadable time of the files to be sent to the receiver. The receiver can read the sent file only after the readable time. After the unreadable time, the structure of the file will be destroyed and the file will become unreadable. Furthermore, for practical usage purposes, the extended scheme, which is based on the proposed scheme, provides not only timed-release services and data self-destruction but also long message encryption and undecryptable search. In the extended scheme, the length of encrypted messages does not depend on the order of the group. Moreover, the cloud server can obtain only the matched ciphertexts after the search.
Relation:	Future Generation Computer Systems, Vol.62, pp.148-160
Data Type:	article
DOI link:	https://doi.org/10.1016/j.future.2015.12.008
DOI:	10.1016/j.future.2015.12.008
Appears in Collections:	[Department of Computer Science ] Periodical Articles

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