Cryptography algorithm for wireless channel of CBTC system

WANG Chao1; LIU Li-li1; NIU Zhi-hua2; SHI Xiang-yong1; ZHANG Huan-guo3

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Cryptography algorithm for wireless channel of CBTC system

更新时间：2024-10-14

- Cryptography algorithm for wireless channel of CBTC system
- Vol. 32, Issue 2, Pages: 48-52(2011)
- 作者机构：
  
  1. 上海大学特种光纤与光接入网省部共建重点实验室
  2. 空天信息安全与可信计算教育部重点实验室
  3. 上海大学计算机工程与科学学院
  4. 武汉大学计算机学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN918.4
- Published：2011
- 稿件说明：
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WANG Chao1, LIU Li-li1, NIU Zhi-hua2, et al. Cryptography algorithm for wireless channel of CBTC system[J]. 2011, 32(2): 48-52.
DOI：

WANG Chao1, LIU Li-li1, NIU Zhi-hua2, et al. Cryptography algorithm for wireless channel of CBTC system[J]. 2011, 32(2): 48-52. DOI：

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。

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 great improvement to the implementation of ECC in CBTC and other wireless communication.

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School of Computer Science, Wuhan University

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