A new traitor tracing

被引：0

作者：

Mitsunari, S ^{[1
]}

Sakai, R

Kasahara, M

机构：

[1] Pixela Corp, Sakai, Osaka 5900985, Japan

[2] Osaka Electrocommun Univ, Dept Lightwave Sci, Neyagawa, Osaka 5728530, Japan

[3] Osaka Gakuin Univ, Fac Informat, Suita, Osaka 5648511, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2002年 / E85A卷 / 02期

关键词：

traitor tracing; Weil pairing; elliptic curve;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A traitor tracing scheme is a broadcast encryption scheme in which a provider can trace malicious authorized users who illegally gave their personal keys to unauthorized users. The conventional schemes have some problems one of them is that there exists an upper bound on the sizes of keys to certify the security of the scheme against a collusion attack by many traitors, and so that the size of the header increases according to the increase of the bound. We shall propose a new traitor tracing scheme where the header size is independent of the number of traitors.

引用

页码：481 / 484

页数：4

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