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| 适合CBTC系统无线信道加密算法 | |
| 引用本文： | 王潮,刘礼黎,牛志华,时向勇,张焕国.适合CBTC系统无线信道加密算法[J].通信学报,2011,32(2):48-52. |
| 作者姓名： | 王潮 刘礼黎 牛志华 时向勇 张焕国 |
| 作者单位： | 1. 上海大学,特种光纤与光接入网省部共建重点实验室,上海,200072;空天信息安全与可信计算教育部重点实验室,湖北武汉,430072 2. 上海大学,特种光纤与光接入网省部共建重点实验室,上海,200072 3. 上海大学,计算机工程与科学学院,上海,200072 4. 空天信息安全与可信计算教育部重点实验室,湖北武汉,430072;武汉大学,计算机学院,湖北武汉,430072 |
| 基金项目： | 国家自然科学基金资助项目，空天信息安全与可信计算教育部重点实验室开放基金资助项目，上海市重点学科和科委重点实验室资助项目 |
| 摘 要： | 分析了现有地铁CBTC无线信道安全问题,针对其加密算法RC4的缺陷,提出了一种新的基于Montgomery型曲线ECC快速加密算法.与一般形式的传统的Montgomery型椭圆曲线密码相比,该算法可部分恢复y坐标的值数,具有更高的安全性.该算法与传统椭圆曲线密码相比,具有更快的计算速度并能有效地抵御时间攻击和能量攻击,从而证明了利用ECC密码体制来代替RC4密码体制的可行性.算法对提高椭圆曲线密码的在CBTC等无线通信系统的实现效率有一定意义. |
| 关 键 词： | 椭圆曲线密码 时间攻击 能量攻击 |
Cryptography algorithm for wireless channel of CBTC system |
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| WANG Chao,LIU Li-li,NIU Zhi-hua,SHI Xiang-yong,ZHANG Huan-guo.Cryptography algorithm for wireless channel of CBTC system[J].Journal on Communications,2011,32(2):48-52. | |
| Authors: | WANG Chao LIU Li-li NIU Zhi-hua SHI Xiang-yong ZHANG Huan-guo |
| Institution: | WANG Chao1,3,LIU Li-li1,NIU Zhi-hua2,SHI Xiang-yong1,ZHANG Huan-guo3,4(1.Key Lab of Specialty Fiber Optics and Optical Access Network,Ministry Education,Shanghai University,Shanghai 200072,China,2.School of Computer Engineering and Science,3.Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of Education,Wuhan 430072,4.Computer School of Wuhan University,China) |
| Abstract: | As to the disadvantages of RC4 which was used for CBTC system,a new cryptography algorithm based on Montgomery-form ECC was brought forward.Compared with the traditional Montgomery elliptic curve,the improved algorithm would resume the value of y-coordinate with more security.In addition,compared with the traditional ECC,it has faster computing speed and can effectively resist the timing attack and energy attack.The new Montgomery-form ECC algorithm has accelerated current ECC encoding speed and would make ... |
| Keywords: | Montgomery RC4 |
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