Efficient Broadcast from Trapdoor Functions

Authors:
Yi Mu;Willy Susilo;Xinyi Huang
Affiliations:
University of Wollongong;University of Wollongong;Nanjing Normal University
Venue:
Proceedings of the 2005 conference on Applied Public Key Infrastructure: 4th International Workshop: IWAP 2005
Year:
2005

Citing 7
Cited 0

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Abstract

We present a novel scheme of broadcast encryption that is suitable for broadcast servers such as pay TV services. The important feature of our scheme is that the length of a broadcast string in our scheme is independent of the number of receivers in the system; hence it is suitable for large groups. Our scheme is based on a trapdoor encryption technique under the RSA assumption. We also describe a variant of our scheme which provides stronger security.