一个轻量级的CP-ABE方案,用于车辆特设网络的直接属性撤销
Yilong Liu1,2, Shengwei Xu1,3, Ziyan Yue1,2
1School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing 100876, China.
Entropy (Basel, Switzerland)
|July 29, 2023
概括
本研究介绍了一种轻量级的Ciphertext-Policy Attribute-Based Encryption (CP-ABE) 方案,用于车载特设网络 (VANET). 它通过高效的直接属性撤销来增强安全性和访问控制,提高整体系统性能.
科学领域:
- 计算机科学 计算机科学
- 网络安全 网络安全
- 密码学 密码学 密码学 密码学
背景情况:
- 车辆特设网络 (VANET) 需要安全的数据访问控制.
- 对于VANETs而言,现有的Ciphertext-Policy Attribute-Based Encryption (CP-ABE) 方案面临着属性撤销效率和计算开销方面的挑战.
- 传统 CP-ABE 方案中的双线配对操作会导致系统复杂性和性能降低.
研究的目的:
- 为VANETs提出一个支持直接属性撤销的轻量级CP-ABE方案.
- 为了减少系统消耗,并简化VANET中的撤销操作.
- 提高车辆终端的效率并降低解密成本.
主要方法:
- 通过区分动态和静态车辆属性,实现基于代理的直接属性撤销机制.
- 在圆曲线上用高效的标量乘法取代了计算密集的双线配对操作.
- 利用计算外包技术,最大限度地降低车辆终端的解密成本.
主要成果:
- 拟议的方案实现了直接的属性撤销,减少了系统的开销和运营复杂性.
- 使用圆曲线标量乘法显著提高了计算效率,而不是比线性配对.
- 计算外包有效降低了车辆终端上的解密负担.
- 该计划显示了整体效率的提高,同时确保了数据的机密性和完整性.
结论:
- 开发的轻量级CP-ABE方案为VANET中的安全访问控制提供了更有效和实用的解决方案.
- 直接属性撤销机制和优化的加密操作解决了现有方案的关键局限性.
- 这种方法提高了车辆通信系统的安全性和性能.
相关概念视频
01:11IP3/DAG Signaling Pathway
12.2K
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...
12.2K
01:25Network Function of a Circuit
324
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
324
02:12Short-distance Transport of Resources
16.1K
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.
16.1K
01:19Distributed Loads
555
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...
555
01:16Maximum Power Transfer
287
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
287
01:21Distributed Loads: Problem Solving
671
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
671