| 对基于广义猫映射的组播密钥管理方案的改进 |
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| 引用本文： | 王全迪,李金凤,周杰.对基于广义猫映射的组播密钥管理方案的改进[J].计算机应用,2011,31(4):975-977. |
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| 作者姓名： | 王全迪 李金凤 周杰 |
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| 作者单位： | 1. 华南理工大学 理学院，广州 5106402. 华南理工大学 计算机科学与工程学院，广州 510006 |
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| 摘 要： | 通过分析指出曹国梁等人给出的基于广义猫映射的组播密钥管理方案不满足组成员私钥独立性的安全性要求。利用单向函数对基于广义猫映射的组播密钥管理方案进行改进，改进方案满足组成员私钥独立性的安全性要求，且比曹国梁等人的组播密钥管理方案具有更高的安全性，同时还具有较低的计算开销和通信开销。
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| 关 键 词： | 组播安全 组播密钥管理 私钥独立性 广义猫映射 单向函数 |
| 收稿时间： | 2010-10-11 |
| 修稿时间： | 2010-11-29 |
Modification of Cao's multicast key management scheme based on generalized cat map |
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| WANG Quan-di,LI Jin-feng,ZHOU Jie.Modification of Cao's multicast key management scheme based on generalized cat map[J].journal of Computer Applications,2011,31(4):975-977. |
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| Authors: | WANG Quan-di LI Jin-feng ZHOU Jie |
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| Affiliation: | 1. School of Sciences, South China University of Technology, Guangzhou Guangdong 510640, China2. School of Computer Science and Engineering, South China University of Technology, Guangzhou Guangdong 510006, China |
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| Abstract: | It is indicated that Cao Guoliang et al's multicast key management scheme based on generalized cat map does not satisfy the independent security requirement of individual keys of group members. A modification scheme was proposed by using one way function. The presented scheme satisfies the independent security requirement of individual keys of group members. Compared with Cao Guoliang et al's scheme, this modification scheme has higher security and lower computation and communication overheads. |
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| Keywords: | multicast security multicast key management independence of individual key generalized cat map one way function |
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