车载自组网中可证明安全的无证书认证方案

曾萍; 郭瑞芳; 马英杰; 高原; 赵耿

doi:10.11999/JEIT190883

车载自组网中可证明安全的无证书认证方案

doi: 10.11999/JEIT190883

曾萍¹,
郭瑞芳^{1, 2, ,},
马英杰¹,
高原¹,
赵耿¹

1.
北京电子科技学院北京 100070
2.
西安电子科技大学西安 710000

基金项目: 国家自然科学基金(61772047)

详细信息

作者简介:
曾萍：女，1969年生，教授，研究方向为通信与网络安全、物联网安全

郭瑞芳：女，1994年生，硕士生，研究方向为物联网安全

马英杰：女，1979年生，副教授，研究方向为混沌密码通信

高原：女，1979年生，讲师，研究方向为区块链应用

赵耿：男，1964年生，教授，博士生导师，研究方向为混沌密码通信

通讯作者:
郭瑞芳　fang_wankai@163.com

中图分类号: TN918; TN393.08
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- 文章访问数: 1063
- HTML全文浏览量: 288
- PDF下载量: 141
- 被引次数: 0
出版历程
- 收稿日期: 2019-11-04
- 修回日期: 2020-10-19
- 网络出版日期: 2020-10-23
- 刊出日期: 2020-12-08

Provable Security Certificateless Authentication Scheme for Vehicular Ad hoc Network

1.
Beijing Electronic Science&Technology Institute, Beijing 100070, China
2.
Xidian University, Xi’an 710000, China

Funds: The National Natural Science Fouundation of China (61772047)

摘要

摘要:
认证协议的设计是目前车载自组网(VANET)安全领域的研究热点。现有的认证方案中普遍存在密钥托管带来的安全问题，以及使用计算量大的双线性对导致认证效率很低。针对以上问题，该文提出可证明安全的无证书批认证方案，方案中车辆的密钥由车辆自身和一个密钥生成中心共同生成，解决密钥需要托管给第三方维护的问题；方案的签名构造不使用计算量大的对运算，减少了计算开销；引入批认证来减少路边设施的认证负担，提高认证效率。基于求解椭圆曲线上的离散对数问题的困难性假设，在随机预言机模型中证明了该方案可以抵抗自适应选择消息和身份攻击，从而抵抗更改攻击和假冒攻击，并具有匿名性、可追踪性等特点。与现有方案相比，该方案实现了更高效的认证。
- 认证 /
- 无证书 /
- 批认证 /
- 可证明安全的 /
- 匿名性
Abstract:
The design of authentication protocol is a hot topic in the field of the security of Vehicular Ad hoc NETwork (VANET). There are security problems caused by key escrow in the existing authentication schemes. In order to solve this problem and achieve secure and efficient verification, an efficient pairing-free certificateless authentication scheme with batch verification is proposed, in which the key of the vehicle is generated by the vehicle itself and a key generation center, which solves the problem that the key needs to be managed to the third party for maintenance. The bilinear pairing operation, one of the most complex operations in modern cryptography, is not used in the generation of vehicle’s signatures to reduce the computation cost of message verification. Unforgebility of the schemes against adaptively chosen-message and identity attack is proved under the difficulty of computing the discrete logarithm problem in the random oracle model to guarantee resistancy against modification and impersonation attacks, and has the characteristics of anonymity and traceability. Compared to the existing schemes, the proposed scheme is more efficient.
- Authentication /
- Certificateless /
- Batch verification /
- Provable security /
- Anonymity

HTML全文

图 1 VANET系统通信模型

下载: 全尺寸图片幻灯片

图 2 方案总的认证计算开销

下载: 全尺寸图片幻灯片

图 3 批认证时间开销

下载: 全尺寸图片幻灯片

表 1 批认证过程中无效消息查找算法(二分查找算法)

输入：List={ID_i, M_i, W_i, σ_i, T_i}
输出：InvalidList={ID₁, ID₂, ···, ID_m}
(1) Function
(2) batch And Search(List, InvalidList, Index, low, high)
(3) 　/Function batchAuth(List, low, high)表示对消息数组下　　　标Index属于[low, high]的消息进行式(2)所述批认证，成功　　　则返回true，失败则返回false/
(4) 　if (batchAuth(List, Index Low, high)) then
(5) return true
(6) else if (low==high)
(7) 　　Invalid List.append(List[low])
(8) 　　return Invalid List
(9) 　　else
(10) 　　　mid=(low+high)/2
(11) 　　　batch And Search(List, InvalidList, Index, low, mid)
(12) 　　　batch And Search(List, InvalidList, Index, mid+1, 　　　　　 high)
(13) 　　end if
(14) 　　return InvalidList
(15) 　end if
(16) 　end Function
(17) 　for i:=1 to n do
(18) 　　batch And Search(List, InvalidList, i, 1, n)19: end for

下载: 导出CSV

表 2 不同方案的计算开销(ms)

方案	签名生成	认证1条消息	认证n条消息
文献[15]	5T_mul-G1+1T_pa-G1+1T_mtp=12.9581	T_mul-G1+3T_exp+T_mtp=18.7480	nT_mul-G1+3T_exp+nT_mtp=5.1120n+12.6117
文献[17]	4T_mul-G1+1T_pa-G1+2T_mtp+1T_h=15.6552	2T_par+2T_mul-G1+1T_pa-G1+1T_mtp +1T_h=8.4273	2T_exp+2nT_mul-G1+nT_pa-G1+nT_mtp+nT_h =7.8312n+8.422
文献[12]	5T_exp+3T_h= 0.0253	T_exp+2T_par+3T_h=8.4273	(n+1)T_par+nT_exp+3nT_h=4.2163n+4.2110
本文	4T_mul-G+2T_pa-G+3T_h=1.7666	4T_mul-G+3T_pa-G+3T_h=1.7737	(2n+2)T_mul-G+3nT_h+(2n+1)T_pa-G= 0.8879n+0.8858

下载: 导出CSV

表 3 不同方案的通信开销(Byte)

方案	发送1条消息	发送n条消息
本文	144	144n
文献[17]	384	384n
文献[15]	388	388n
文献[12]	144	144n

下载: 导出CSV

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