| 一种对IPKC的ESA攻击及对策 |
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| 引用本文： | 余位驰,何大可.一种对IPKC的ESA攻击及对策[J].计算机应用研究,2006,23(8):129-132. |
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| 作者姓名： | 余位驰 何大可 |
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| 作者单位： | 现代通信国家重点实验室,四川,成都,610041;西南交通大学,计算机与通信学院,四川,成都,610031;西南交通大学,信息安全与国家计算网格实验室,四川,成都,610031 |
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| 摘 要： | 首先介绍了PPKC和IPKC的概念，然后对比了几种典型攻击方法对PPKC和IPKC安全性的不同影响。利用IPKC的特殊性，提出了一种专门针对IPKC的攻击方法——错误探测攻击方法(Errors Sniffing Attacks, ESA)；新型公钥密码方案NTRU是一种IPKC，因此必须研究其抵抗ESA攻击的能力；设计了一种利用NTRU解密错误发起的ESA攻击算法，该算法可以推测出私钥f部分甚至全部的信息。最后提出了增强NTRU抵抗ESA攻击的具体措施。
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| 关 键 词： | 公钥密码方案 非完备公钥密码方案 错误探测攻击 |
| 文章编号： | 1001-3695(2006)08-0129-04 |
| 收稿时间： | 2005-07-18 |
| 修稿时间： | 2005-09-08 |
Challenges and Solutions of ESA on NTRU |
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| YU Wei chi,HE Da ke.Challenges and Solutions of ESA on NTRU[J].Application Research of Computers,2006,23(8):129-132. |
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| Authors: | YU Wei chi HE Da ke |
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| Affiliation: | (1.National Laboratory for Modern Communications, Chengdu Sichuan 610041, China; 2.School of Computer & Communications Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China; 3.Information Security & National Grid Laboratory, Southwest |
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| Abstract: | The conceptions of PPKC and IPKC are introduced in this paper. Secure performances of PPKC and IPKC under different attacks are contrasted. A new type of attacks, Errors Sniffing Attacks(ESA) which work on IPKC only, are presented. Because NTRU is a typical IPKC, its performance of ESA resistance should be studied. Based on NTRU decryption failures, an ESA algorithm can explore partial even whole information of private key f. In order to keep NTRU away from ESA, some suggestions are given at the end of this paper. |
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| Keywords: | Public Key Crypto Scheme Imperfect Public Key Cryptography Scheme(IPKCS) Error Sniffing Attacks(ESA) |
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