基于区块链的可审计访问控制,用于以事件驱动的策略为基础的业务流程.
Ahmed Akhtar1, Masoud Barati2, Basit Shafiq1
1Department of Computer Science, Lahore University of Management Sciences, Lahore, Pakistan.
IEEE transactions on dependable and secure computing
|October 14, 2024
概括
本研究介绍了一种新的区块链方法,用于管理分布式系统中的访问控制. 该方法有效地结合了政策,降低了成本,并提高了复杂业务流程的可审计性.
科学领域:
- 计算机科学 计算机科学
- 信息安全 信息安全
- 分布式系统 分布式系统
背景情况:
- 区块链技术为资源提供可审计的访问控制,特别是在业务流程和工作流等分布式应用程序中.
- 现有的解决方案在多域环境中扎着事件驱动的约束和重叠的策略,导致区块链上的高计算成本.
- 对于分布式应用程序而言,去中心化审计能力至关重要,这些应用程序的资源受各种安全政策的约束.
研究的目的:
- 开发一种成本效益高的方法,用于生成使用区块链的分布式应用程序的复合访问控制策略.
- 解决现有方法在处理事件驱动的约束和政策重叠方面的局限性.
- 为了减少与评估区块链授权相关的开销.
主要方法:
- 建议采用自动机理论方法来生成一个复合的访问控制政策.
- 综合政策生成的问题被简化为标准加权套餐覆盖问题.
- 使用以太坊区块链进行实证验证,实施了最初的原型.
主要成果:
- 拟议的综合政策有效地涵盖了所有地方门禁政策.
- 在区块链上显著降低政策评估成本.
- 经验验证证证实了该方法的有效性和效率,并通过分析政策变化的影响进行了废除研究.
结论:
- 自动机理论方法为分布式区块链应用中复合访问控制策略生成提供了成本高效的解决方案.
- 该方法成功地处理事件驱动的约束和政策重叠,减轻了先前研究中发现的问题.
- 在以太坊上实施的原型验证了拟议技术的实际适用性和性能优势.
相关概念视频
01:29Issues And Trends In Healthcare Delivery System
5.6K
The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
5.6K
01:28Global Regulatory Systems
2
Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
2
01:03Drug Control Governance: Regulatory Bodies and Their Impact
144
Drug control governance involves the oversight and regulation of pharmaceuticals to ensure their safety and efficacy while preventing illegal drug use and trafficking. Regulatory bodies, including the US Food and Drug Administration (FDA) and the European Union's European Medicines Agency (EMA), play a central role in this process. These agencies evaluate the safety and efficacy of drugs before they can be marketed. They fund clinical trials and assess the benefits and risks associated with...
144
01:14Reversible and Irreversible Processes
4.1K
The thermodynamic processes can be classified into reversible and irreversible processes. The processes that can be restored to their initial state are called reversible processes. It is only possible if the process is in quasi-static equilibrium, i.e., it takes place in infinitesimally small steps, and the system remains at equilibrium However, these are ideal processes and do not occur naturally. An ideal system undergoing a reversible process is always in thermodynamic equilibrium within...
4.1K
01:09Decision Making: P-value Method
5.3K
The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim is also stated. These statements can act as null and alternative hypotheses: a null hypothesis would be a neutral statement while the alternative hypothesis can...
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim is also stated. These statements can act as null and alternative hypotheses: a null hypothesis would be a neutral statement while the alternative hypothesis can...
5.3K
01:19Cyclic Processes And Isolated Systems
2.7K
A thermodynamic system with zero heat exchange and work is an isolated system. For these systems, the internal energy remains constant.
In the case of a non-isolated system, the change in the internal energy is zero only if the process is cyclic. A thermodynamic process is considered cyclic if the system undergoes a series of changes and returns to its initial state.
Consider a cyclic process that returns to its initial state, undergoing a four-step process. The heat transfer along each...
In the case of a non-isolated system, the change in the internal energy is zero only if the process is cyclic. A thermodynamic process is considered cyclic if the system undergoes a series of changes and returns to its initial state.
Consider a cyclic process that returns to its initial state, undergoing a four-step process. The heat transfer along each...
2.7K