| 基于Diffie-Hellman密码体制可验证的动态密钥托管方案 |
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| 引用本文： | 闫鸿滨.基于Diffie-Hellman密码体制可验证的动态密钥托管方案[J].南通职业大学学报,2009,23(1). |
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| 作者姓名： | 闫鸿滨 |
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| 作者单位： | 南通职业大学,电子工程系,江苏,南通,226007 |
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| 基金项目： | 国家自然科学基金，南通职业大学自然科学基金 |
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| 摘 要： | 提出一个新的可验证动态密钥托管方案,其安全性基于离散对数与Diffie-Hellman问题的困难性假设,并分析了该方案的性能特点:(1)无需在用户与密钥托管者之间建立安全信道;(2)每个托管者的子密钥可以多次使用,因此在更新密钥时,不用更新每个托管者的子密钥;(3)系统可灵活增删成员;(4)可防止用户与密钥托管者的欺诈行为。由于其安全性和效率方面的特点,该方案可在密钥管理及电子商务中广泛应用。
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| 关 键 词： | 离散对数 密钥托管 动态密钥托管 托管代理 Diffie-Hellman问题 |
A Verifiable Dynamic Key Escrow Scheme Based on Diffie-Hellman Cryptosystem |
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| YAN Hong-bin.A Verifiable Dynamic Key Escrow Scheme Based on Diffie-Hellman Cryptosystem[J].Journal of Nantong Vocational College,2009,23(1). |
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| Authors: | YAN Hong-bin |
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| Institution: | Department of Electronic Engineering;Nantong Vocational College;Nantong 226007;China |
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| Abstract: | A new verifiable dynamic key escrow scheme is proposed.Its security is based on the difficulty as-sumption of discrete logarithms and the problem of Diffie-Hellman.This scheme has the following properties:(1) It is not necessary to construct a secure communication channel between the dealer and the participants.(2) The shadows of every agent can be used for many times without restriction,so the system secrets can be renewed without renewing the shadows of the agents.(3) The system can also accept a new agen... |
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| Keywords: | discrete logarithms key escrow dynamic key escrow escrow agent Diffie-Hellman problems |
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