| 基于椭圆曲线密码的分组网通信安全与保密 |
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| 引用本文： | 卢忱,董秀珍,田春鸣,邹慧後.基于椭圆曲线密码的分组网通信安全与保密[J].计算机工程,2006,32(21):133-135. |
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| 作者姓名： | 卢忱 董秀珍 田春鸣 邹慧後 |
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| 作者单位： | 1. 第四军医大学生物医电系,西安,710032
2. 武警工程学院通信工程系,西安,710086 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出一种基于椭圆曲线数字签名方法，研究由H.323协议集部署的基于分组网络的多媒体终端通信的安全与保密，包括认证、隐私性、完整性及不可否认性。给出椭圆曲线密码体制（ECC）的定义与椭圆曲线数字签名方案，设计与实现了有限域GF(p)上与(ECC)相关的快速算法，包括模乘、点加、点积等算法，由此可构造出一个实用的支持各种安全级的软件引擎。使得结合H.235协议与H.323信令流程的ECC安全应用变得实际可行。
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| 关 键 词： | 多媒体通信 椭圆曲线 离散对数 数字签名 密码学 |
Communication Security and Secret Based on Elliptic Curve Cryptography in Packet Networks |
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| LU Chen,DONG Xiuzhen,TIAN Chunming,ZOU Huiling.Communication Security and Secret Based on Elliptic Curve Cryptography in Packet Networks[J].Computer Engineering,2006,32(21):133-135. |
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| Authors: | LU Chen DONG Xiuzhen TIAN Chunming ZOU Huiling |
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| Affiliation: | (1. Department of Biological Medical and Electronic Engineering, Fourth Military Medical University, Xi’an 710032; 2. Department of Communication Engineering, Armed Police Engineering College, Xi’an 710086) |
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| Abstract: | This paper presents a method based on elliptic curve digital signature to improve the communication security of multimedia terminals in the IP-based network deployed by H.323 protocols set, including authentication, integrity, privacy and not repudiation. The elliptic curve cryptography (ECC) and a digital signature based on ECC are given. Fast algorithms relating to ECC are then designed and implemented, including module multiplication, point addition, scalar multiplication of point etc.. A software engine supporting various security level is built. This makes it possible that ECC’s practical security application in accordance with H.235 protocol and H.323 signaling procedure. |
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| Keywords: | Multimedia communication Elliptic curve Discrete logarithm Digital signature Cryptography |
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