Linear broadcast encryption schemes

被引：12
|
作者：
Padró, C [1 ]
Gracia, I [1 ]
Martín, S [1 ]
Morillo, P [1 ]
机构：
[1] Univ Politecn Catalunya, Dept Matemat Aplicada 4, ES-08034 Barcelona, Spain
来源：
DISCRETE APPLIED MATHEMATICS | 2003年 / 128卷 / 01期
关键词：
distributed cryptography; key distribution; broadcast encryption; key predistribution schemes;
D O I：
10.1016/S0166-218X(02)00447-X
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
A new family of broadcast encryption schemes, which will be called linear broadcast encryption schemes (LBESs), is presented in this paper by using linear algebraic techniques. This family generalizes most previous proposals and provides a general framework to the study of broadcast encryption schemes. We present a method to construct, for a general specification structure, LBESs with a good trade-off between the amount of secret information stored by every user and the length of the broadcast message. In this way, we are able to find schemes that fit in situations that have not been considered before. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：223 / 238
页数：16
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