针对恶意节点的量子密钥分发网络的信任意识的因果一致路由
1School of Cyberspace Science, Faculty of Computing, Harbin Institute of Technology, Harbin 150001, China.
Entropy (Basel, Switzerland)
|November 26, 2025
概括
本研究介绍了量子密钥分配 (QKD) 网络的新分布式路由框架. 它通过防止恶意节点破坏密钥分配来提高安全性和效率,确保可靠的通信.
科学领域:
- 量子信息科学 量子信息科学
- 网络安全 网络安全
- 分布式系统 分布式系统
背景情况:
- 量子密钥分配 (QKD) 网络提供信息理论上的安全性,但依赖于路由协议.
- 现有的路由协议通常假定诚实节点,这在敌对环境中是不现实的.
- 恶意节点可以通过传播不一致的路由信息来破坏QKD网络,从而导致密钥浪费.
研究的目的:
- 为 QKD 网络开发一个强大的分布式路由框架,以抵御恶意节点.
- 确保在存在不值得信赖的继电器时,保持一致的关键状态视图和可靠的路由计划.
- 为了优化安全密钥分配效率,并最大限度地减少密钥浪费.
主要方法:
- 提出了一个带有因果一致性关键状态更新的框架,以防止不一致状态传播.
- 使用信任指标对可疑链接进行处罚,实现了信任意识的多路径流量优化.
- 在各种攻击模式下,对50节点拓的性能进行了评估,其中多达30%的恶意继电器.
主要成果:
- 实现了高的需求完成率 (DCR) (平均值为0.90) 与低密钥利用率 (每需求16.6个密钥).
- 显著超过了基线协议,如多路径计划 (DCR 0.48) 和OSPF (DCR ≤0.12).
- 在不同的攻击模式和高百分比的恶意中继中表现出弹性.
结论:
- 拟议的框架有效地平衡了QKD网络的可靠性和效率.
- 它提供了一种实用且有弹性的解决方案,用于在敌对环境中安全的密钥分配.
- 该框架提高了未来QKD网络部署的可靠性和性能.
相关概念视频
Propagation of Uncertainty from Random Error
1.6K
An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
1.6K
Propagation of Uncertainty from Systematic Error
1.2K
The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this...
1.2K
Network Function of a Circuit
611
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.
611
Distribution Reliability and Automation
480
Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
480
IP3/DAG Signaling Pathway
14.2K
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...
14.2K
Norton's Theorem
1.4K
Norton's theorem is a fundamental principle stating that a linear two-terminal circuit can be substituted with an equivalent circuit, which comprises a current source (ⅠN) in parallel with a resistor (RN). Here, ⅠN represents the short-circuit current flowing through the terminals, and RN stands for the input or equivalent resistance at the terminals when all independent sources are deactivated. This implies that the circuit illustrated in Figure (a) can be exchanged with the one depicted...
1.4K
