| 基于椭圆曲线的前向安全签密方案 |
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| 引用本文： | 潘恒,郑秋生,王滨,涂松.基于椭圆曲线的前向安全签密方案[J].计算机工程与设计,2008,29(22). |
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| 作者姓名： | 潘恒 郑秋生 王滨 涂松 |
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| 作者单位： | 中原工学院,计算机学院,河南,郑州,450007;信息工程大学,电子技术学院,河南,郑州,450004 |
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| 基金项目： | 国家自然科学基金项目，河南省自然科学基金项目 |
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| 摘 要： | 签密可在同一逻辑步中同时完成签名和加密两项功能,其代价远小于"先签名后加密"的传统实现方式,是构造信息安全系统的有效工具.研究了IEEEP1363标准定义的椭圆曲线签名体制,指出了该体制存在的两个安全缺陷:不能为签名提供保密服务、密钥不具有前向安全性.结合椭圆曲线密钥交换协议和签密的思想,构造了一个具有前向安全性的签密方案.该方案以一般椭圆曲线密码系统为基础,可以同时实现签名、加密以及对称密钥建立等功能.该方案的密钥建立过程是前向安全的,签名是前向安全的和不可伪造的.
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| 关 键 词： | 椭圆曲线密码 前向安全 签密 密钥管理 加密 |
Forward-secure signcryption scheme based on ECC cryptography |
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| PAN Heng,ZHENG Qiu-sheng,WANG Bin,TU Song.Forward-secure signcryption scheme based on ECC cryptography[J].Computer Engineering and Design,2008,29(22). |
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| Authors: | PAN Heng ZHENG Qiu-sheng WANG Bin TU Song |
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| Affiliation: | PAN Heng1,ZHENG Qiu-sheng1,WANG Bin2,TU Song2(1.College of Computer Science,Zhongyuan Institute of Technology,Zhengzhou 450007,China,2.Institute of Electronic Technology,Information Engineering University,Zhengzhou 450004,China) |
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| Abstract: | Signcryption is a new cryptographic primitive which simultaneously provides both confidentiality and authenticity.Compared with the cases where the encryption and signature operations are simply sequentially composed,signcryption can achieve significant sa-vings both in computational and communication overhead.The security of elliptic curve cryptography digital signature scheme described in IEEE P1363 is studied,and two security drawbacks of that scheme is pointed out: It can't protect the confidence of the... |
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| Keywords: | elliptic curve cryptography forward security signcryption key management encryption |
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