在LoRaWAN中利用更大的AES键:对能源和时间成本的实际评估
Phithak Thaenkaew1,2, Bruno Quoitin1, Ahmed Meddahi2
1Department of Computer Science, University of Mons, 7000 Mons, Belgium.
Sensors (Basel, Switzerland)
|November 25, 2023
概括
在LoRaWAN设备中实施较长的高级加密标准 (AES) 密钥对能源和处理时间的影响最小. 这些发现表明,对物联网 (IoT) 关键基础设施而言,在没有显著的性能权衡的情况下,增强安全是可行的.
科学领域:
- 网络安全 网络安全
- 无线通信网络 无线通信网络
- 物联网 (IoT) 的物联网 (IoT) 的物联网.
背景情况:
- 物联网 (IoT) 设备是关键基础设施的组成部分,需要强大的安全协议.
- 目前,LoRaWAN网络采用先进加密标准 (AES),使用128位密钥,以平衡安全性和效率.
- 不断发展的计算能力和安全建议需要评估更强大的加密,如AES-256,用于物联网应用程序.
研究的目的:
- 调查使用较长的AES密钥 (192和256位) 对LoRaWAN设备能耗和处理时间的影响.
- 解决LoRaWAN部署中增强的AES密钥长度对现实世界性能影响的研究缺口.
主要方法:
- 在真实的LoRaWAN环境中进行了广泛的测试.
- 修改了LoRaWAN终端设备和开源服务器堆的源代码,以支持更大的AES密钥大小.
- 开发了一个数学模型来预测更长的AES键对处理时间的影响.
主要成果:
- 更大的AES密钥 (AES-192,AES-256) 会增加能源消耗和处理时间.
- 对于AES-256和AES-128的最大有效载荷,额外的计算时间为750ms,能量为236μJ.
- 这些增加代表了在空中时间方面最小的开销 (时间为0.2%,能量为0.13%).
结论:
- 较长的AES密钥的计算成本增加与AES计算轮次数相关.
- 在LoRaWAN中实施更长的AES密钥是一种实用的方法,可以显著提高安全性.
- 通过更长的AES密钥增强的安全性不会对LoRaWAN设备的能源消耗或处理时间造成实质性处罚.
相关概念视频
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
231
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
231
Atomic Emission Spectroscopy: Overview
2.3K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.3K
Ampere-Maxwell's Law: Problem-Solving
635
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
635
Ampere's Law: Problem-Solving
3.6K
Ampere's law states that for any closed looped path, the line integral of the magnetic field along the path equals the vacuum permeability times the current enclosed in the loop. If the fingers of the right hand curl along the direction of the integration path, the current in the direction of the thumb is considered positive. The current opposite to the thumb direction is considered negative.
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
3.6K
Effective Value of a Periodic Waveform
551
The concept of effective value, the root mean square (RMS) value, is crucial in understanding electrical circuits and power delivery. This idea emerges from the necessity to measure the effectiveness of a voltage or current source in supplying power to a resistive load.
The effective value of a periodic current represents the direct current (DC) that conveys the same average power to a resistor as the periodic current itself. This concept is crucial when assessing AC circuits. To determine the...
The effective value of a periodic current represents the direct current (DC) that conveys the same average power to a resistor as the periodic current itself. This concept is crucial when assessing AC circuits. To determine the...
551
Maximum Power Transfer
263
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...
263


