轻量级联盟启用区块链的安全车辆特设网络,使用无证书的有条件隐私保护身份验证机制
Iqra Ilyas1, Irfan Ud Din1,2, Abdullah Alourani3
1Department of Computer Science, Superior University, Lahore, Pakistan.
PloS one
|October 31, 2024
概括
这项研究引入了使用联盟区块链和无证书加密技术的车辆特设网络 (VANET) 的新隐私保护方案. 拟议的方法提高了智能交通系统的位置隐私和系统效率.
科学领域:
- 智能运输系统 智能运输系统
- 计算机网络 计算机网络.
- 网络安全 网络安全
背景情况:
- 基于位置的服务 (LBS) 对智能运输系统 (ITS) 至关重要,但在车辆特设网络 (VANET) 中存在隐私风险.
- 现有的VANET隐私计划在实际部署中经常失败,原因是系统效率受损和高节点认证开销.
- 由于在开放环境中频繁交换位置数据,VANET 容易受到隐私和安全攻击.
研究的目的:
- 为VANETs提出一个新的联盟区块链辅助无证书有条件隐私保护计划.
- 解决VANETs内部基于位置的服务中隐私,安全和系统效率的挑战.
- 在智能运输系统中增强隐私保护解决方案的实际部署能力.
主要方法:
- 利用联盟区块链技术,以实现其半分散和轻量级的特性.
- 实施无证书的有条件隐私保护方案,以尽量减少节点身份验证的开销.
- 开发基于特定时间的车辆匿名区域,以确保位置隐私.
主要成果:
- 拟议的方案证明了对各种攻击模式的实用性和弹性.
- 即使在最大恶意攻击下,也实现了83%的匿名度百分比 (ADP).
- 与现有的最先进的方法相比,在隐私保护方面表现出显著的改进.
结论:
- 联盟区块链辅助的无证书有条件隐私保护计划有效地提高了VANET中的位置隐私和系统效率.
- 该方案为智能运输系统中的隐私问题提供了实用且安全的解决方案.
- 拟议的方法显示了计算复杂性的降低,同时保持了强大的隐私保证.
相关概念视频
Short-distance Transport of Resources
15.6K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
15.6K
Asymmetric Lipid Bilayer
7.2K
Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
7.2K
Facilitated Transport
11.2K
The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In facilitated transport, also known as facilitated diffusion, molecules and ions travel across a...
11.2K
IP3/DAG Signaling Pathway
11.9K
Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and...
11.9K
Carrier-Mediated Transport
279
Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
279
Distributed Loads
511
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
511


