| 基于单向函数的动态密钥托管方案 |
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| 引用本文： | 闫鸿滨,袁丁.基于单向函数的动态密钥托管方案[J].计算机应用,2006,26(5):1093-1095. |
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| 作者姓名： | 闫鸿滨 袁丁 |
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| 作者单位： | 四川师范大学,计算机科学学院,四川,成都,610068;南通职业大学,电子系,江苏,南通,226007;四川师范大学,计算机科学学院,四川,成都,610068 |
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| 基金项目： | 中国科学院资助项目;四川省科技厅资助项目;四川省教育厅资助项目 |
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| 摘 要： | 动态密钥托管方案，采用ElGamal公钥体制，利用单向函数不可求逆的安全特性设计，该方案可使用于任意接入结构，每个托管代理者的子密钥可以多次使用。如果某托管子密钥泄露，系统只需为其重新分配子密钥，其他成员的子密钥不必更改。本系统可方便增删托管代理成员，既具安全性，又可提高密钥托管的动态性和灵活性。
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| 关 键 词： | ElGamal公钥体制 动态密钥托管 托管代理 |
| 文章编号： | 1001-9081（2006）05-1093-03 |
| 收稿时间： | 2005-11-03 |
| 修稿时间： | 2005-11-032006-01-04 |
Dynamic key escrow scheme based on one-way function |
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| YAN Hong-bin,YUAN Ding.Dynamic key escrow scheme based on one-way function[J].journal of Computer Applications,2006,26(5):1093-1095. |
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| Authors: | YAN Hong-bin YUAN Ding |
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| Affiliation: | 1. Department of Computer Science, Sichuan Normal University, Chengdu Sichuan 610068, China; 2. Department of Electron, Nantong Vocational College, Nantong Jiangsu 226007, China |
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| Abstract: | JP3]A dynamic key escrow scheme was proposed based on ElGamal public key cryptosystem and one-way function, which could effectually identify cheaters, and could be applicable to arbitrary access structures. The key shadow could be reused for many times. When some key agents' key shadow had been revealed, they could be renewed without any effect on the others. The scheme can accept or fire a key agent easily, which not only is security, but also increases dynamic and flexibility of key escrow. |
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| Keywords: | E1Gamal public key cryptosystem dynamic key escrow escrow agent |
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