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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40296

Authors: Pei-Yih Ting;Shu-Wei Chang;Tzong-Sun Wu
Contributors: 國立臺灣海洋大學:資訊工程學系
Date: 2011
Issue Date: 2017-01-17T03:46:32Z
Publisher: Journal of Internet Technology
Abstract: Abstract: In this paper, we propose an identity-based, generalized, anonymous broadcast encryption scheme. Due to its anonymity property, this scheme can be used in a large scale medical database, in which every medical record is dynamically assigned access right to multiple users. First, we design a mechanism to conceal the broadcast target receivers for Boneh and Hamburg's ”Spatial Encryption” scheme. This mechanism hides the policy vector using the receiver's identity and system's public parameters. Everyone in the target receiver set can decrypt the ciphertext, while others learn neither the message nor the identities of the target receivers. We define the security notion for this anonymous broadcast encryption system. Assuming that BDDHE problem is intractable, we prove the security of the proposed scheme without random oracles.
Relation: 12(2)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40296
Appears in Collections:[資訊工程學系] 期刊論文

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