Advances in Computer Science—ASIAN 2004: Proceedings of the 9th Asian Computing Science Conference. Lecture Notes in Computer Science 3321
Identity-based authenticated broadcast encryption and distributed authenticated encryption
作者:
Y. Mu， W. Susilo and Y. X. Lin.
关键词:
Identity-based authenticated broadcast encryption and distributed authenticated encryption
摘要:
Since its introduction, broadcast encryption has attracted many useful applications. In this paper, we propose two identity-based schemes for authenticated broadcasting and distributed message authentication. The first scheme supports multiple broadcasters and allows each broadcaster to dynamically broadcast messages into an arbitrary group of receivers determined by the broadcaster. The receivers can obtain the broadcasted message using the identity of the broadcaster and his own secret decryption key; hence it ensures both confidentiality and authenticity of the message. The second scheme allows users (receivers) to send messages back to the broadcaster where the authentication of messages is done with the identity of the user. We also provide security proofs for our schemes under the random oracle model.
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