| 匿名通信系统中自私行为的惩罚机制研究 |
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| 引用本文： | 时金桥,程晓明.匿名通信系统中自私行为的惩罚机制研究[J].通信学报,2006,27(2):80-86. |
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| 作者姓名： | 时金桥 程晓明 |
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| 作者单位： | 1. 哈尔滨工业大学计算机网络与信息安全技术研究中心,黑龙江,哈尔滨,150001
2. 国家计算机网络应急技术处理协调中心,北京,100029 |
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| 摘 要： | 针对匿名通信系统中成员自私行为带来的“Free-Riding”问题进行了研究，量化地分析了匿名通信系统中的自私成员数量对于系统匿名性及工作效率的影响。结果表明，在系统中存在大量自私成员的情况下，匿名通信系统无法保证其匿名性及效率。基于区分服务思想提出一种针对系统中成员自私行为的惩罚机制。理论分析表明；应用惩罚机制后的匿名系统在仍然保证成员的匿名性的前提下，能够有效降低自私成员的工作效率，从而减少自私行为的发生。
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| 关 键 词： | 信息安全 匿名通信 惩罚机制 |
| 文章编号： | 1000-436X（2006）02-0080-07 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2005-11-152006-01-02 |
Research on penalty mechanism against selfish behaviors in anonymous communication system |
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| SHI Jin-qiao,CHENG Xiao-ming.Research on penalty mechanism against selfish behaviors in anonymous communication system[J].Journal on Communications,2006,27(2):80-86. |
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| Authors: | SHI Jin-qiao CHENG Xiao-ming |
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| Affiliation: | 1. Research Center of Computer Network and Information Security Technology, Harbin Institute of Technology, Harbin 150001,China; 2. National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing 100029,China |
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| Abstract: | The free-riding problem caused by the selfish behaviors of the anonymous communication system participants was studied in this paper. The effect of the selfish node number on anonymity degree and efficiency of the anonymous systems was statistically analyzed and the analytical results illustrated that neither the anonymity degree nor efficiency could be guaranteed when there existing a lot of selfish nodes. A penalty mechanism based on differential service was proposed to discourage the selfish behaviors of the participants. Theoretical analysis shows that the systems with penalty mechanism can punish the selfish nodes by decreasing of their efficiency, without loss of their anonymity. |
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| Keywords: | Free-Riding |
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