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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/27862

Title: Secure Multicast Using Proxy Encryption
Authors: Yun-Peng Chiu;Chin-Laung Lei;Chun-Ying Huang
Contributors: NTOU:Department of Computer Science and Engineering
Keywords: Secure multicast;multicast key management;cipher sequences;proxy encryption;ElGamal cryptosystem.
Date: 2005
Issue Date: 2011-10-21T02:34:16Z
Publisher: Lecture Notes in Computer Science (LNCS)Information and Communications Security
Abstract: Abstract:In a secure multicast communication environment, only valid members belong to the multicast group could decrypt the data. In many previous researches, there is one "group key" shared by all group members. However, this incurs the so-called "1 affects n problem," that is, an action of one member affects the whole group. We believe this is the source of scalability problems. Moreover, from the administrative perspective, it is desired to confine the impacts of changing membership events in a local area. In this paper, we propose a new secure multicast architecture without using a group key. We exploit a cryptographic primitive "proxy encryption." It allows routers to convert a ciphertext encrypted under a key to a ciphertext encrypted under another key, without revealing the secret key and the plaintext. By giving proper keys to intermediate routers, routers could provide separation between subgroups. Therefore the goals of scalability and containment are achieved.
Relation: 3783, pp.280-290
URI: http://ntour.ntou.edu.tw/handle/987654321/27862
Appears in Collections:[資訊工程學系] 期刊論文

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