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MitM attack: CCMP data-confidentiality targeting Wi-Fi 4

MitM attack: CCMP data-confidentiality targeting Wi-Fi

引用

4th International Conference on Computer Science and communication technology, ICCSCT 2023

作者： Wang, Zhaoyang Gan, Quan Wen, Hong Hou, Wenjing Song, Huanhuan Lei, Wenxin School of Aeronautics and Astronautics University of Electronic Science and Technology of China Sichuan Chengdu611731 China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Laboratory of Sichuan Province Sichuan Chengdu611731 China Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China

ISBN: (纸本)9781510671232

Wi-Fi is a widely used wireless local area network (WLAN) technology, and its security issues have always been a matter of concern. The counter with CBC-MAC protocol (CCMP) is a commonly employed security protocol for Wi-Fi. However, vulnerabilities in the 4-way handshake process can allow attackers to carry out man-in-the-middle (MitM) attacks. In a successful attack, the targeted station (STA) connects to a rogue access point (AP) established by the MitM, which can have severe consequences for Wi-Fi users. This paper focuses on MitM attacks in the context of WPA2, CCMP, and WLAN security. We analyze and implement a MitM attack scenario, and based on this scenario, we summarize the potential hazards resulting from a successful attack. Furthermore, we present solutions to help prevent falling victim to such attacks. © 2023 SPIE.

关键词： Wi-Fi

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A Chip-scale Magnetic Field Sensor Based on Frequency Readout Cavity Optomechanical System

A Chip-scale Magnetic Field Sensor Based on Frequency Readou...

引用

2024 Photonics and Electromagnetics research Symposium, PIERS 2024

作者： Li, Zhe Xian, Chengwei Kuang, Pengju Xiong, Jinglong Huang, Zihan Zhang, Senyu Wen, Guangjun Chen, Kai Huang, Yongjun University of Electronic Science and Technology of China School of Automation Engineering Chengdu611731 China University of Electronic Science and Technology of China School of Information and Communication Engineering Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT Chengdu611731 China Chengdu Technological University School of Electronic Engineering Chengdu611730 China

ISBN: (纸本)9798350375909

In this paper, the working principle of cavity optomechanical system is analyzed, and a new chip-scale magnetic field sensor based on frequency readout cavity optomechanical system is proposed. The relationship between the magnetic field and displacement of the mechanical part of the new chip-scale magnetic field sensor is verified, the structure and parameters of the new chip-scale magnetic field sensor are simulated and designed, the optical characteristics of two-dimensional photonic crystal microcavity are simulated and analyzed, and the mechanical resonant frequency of the cavity affected by the displacement and the input laser wavelength and intensity is demonstrated. Then, the whole magnetic field sensor is simulated and analyzed. The results show that when the input laser intensity is 199μW, the sensitivity is 7.9Hz/μT. The new chip-scale magnetic field sensor simulated in this paper has important application value in the fields of navigation, positioning, magnetic imaging, medical imaging and environmental monitoring. © 2024 IEEE.

关键词： Microcavities

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Design and Analysis of High-precision Frame-type Optomechanical Gyroscope

Design and Analysis of High-precision Frame-type Optomechani...

引用

2024 Photonics and Electromagnetics research Symposium, PIERS 2024

作者： Xian, Chengwei Kuang, Pengju Huang, Zihan Zhang, Senyu Li, Zhe Wen, Guangjun Huang, Yongjun University of Electronic Science and Technology of China School of Information and Communication Engineering Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT Chengdu611731 China Chengdu Technological University School of Electronic Engineering Chengdu611730 China University of Electronic Science and Technology of China School of Automation Engineering Chengdu611731 China

ISBN: (纸本)9798350375909

In this paper, a new structure of high precision frame-type optomechanical gyroscope is proposed. Based on the basic theory of photonic crystal cavity optomechanical system, the working mechanism of the new high precision micro gyroscope is analyzed. Through the simulation optimization and numerical calculation of the mechanical structure and optical structure of the gyroscope, the theoretical measurement sensitivity of angular velocity is 261.9mV/(°/s), and the rate noise density is 0.011(°/s)/Hz1/2. Based on the micro-nano fabrication process, the sample of the cavity optomechanical gyroscope chip was fabricated on SOI, and the preliminary test of the gyroscope chip was carried out on the vacuum test platform. With the same magnitude of inertia mass, the precision of this new micro gyroscope is obviously better than that of the traditional microelectromechanical system (MEMS) gyroscope, which provides a new path for realizing a high-precision, easy-to-integrate-on-chip, and strongly anti-electromagnetic interference gyroscope, and has great potential application value in high precision inertial navigation, micro vibration detection and other technical fields. © 2024 IEEE.

关键词： Gyroscopes

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USRP-based real-time experimentation platform for artificial-noise-aided MIMO system 4

USRP-based real-time experimentation platform for artificial...

引用

4th International Conference on Computer Science and communication technology, ICCSCT 2023

作者： Yu, Ziyang Song, Huanhuan Wen, Hong Liu, Yonghuang Li, Wen Hou, Wenjing School of Aeronautics and Astronautics University of Electronic Science and Technology of China Sichuan Chengdu611731 China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Lab. of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China

ISBN: (纸本)9781510671232

Artificial noise, as a physical layer security technique, differs from traditional communication security mechanisms based on cryptography as it cannot be easily cracked by rapidly developing computational power. The theoretical research on the security of artificial-noise-assisted MIMO (Multiple-Input Multiple-Output) communication systems is quite comprehensive. However, the practical effectiveness of artificial noise in real-world systems still needs to be further validated through experimentation. This paper proposes a real-time platform for simulating experiments on MIMO communication systems assisted by artificial noise. By analyzing experimental data, it demonstrates that artificial noise has a slight impact on the reliability of legitimate MIMO communication systems while effectively enhancing system security. © 2023 SPIE.

关键词： MIMO systems

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Physical layer security verification system based on software defined radio 4

Physical layer security verification system based on softwar...

引用

4th International Conference on Computer Science and communication technology, ICCSCT 2023

作者： Liu, Yonghuang Song, Huanhuan Wen, Hong Yu, Ziyang Li, Wen School of Aeronautics and Astronautics University of Electronic Science and Technology of China Sichuan Chengdu611731 China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Lab. of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China

ISBN: (纸本)9781510671232

Compared with traditional encryption technology, physical layer security technology uses channel noise to realize the key with the same length as plaintext. Even if the eavesdropper has strong cracking computing power, it cannot decipher the confidential data without the key, which can truly realize "One-Time-Pad" and ensure the security of wireless communication. In this paper, we propose a physical layer security verification system based on software defined radio. In the system, base stations and legitimate users can obtain channel information efficiently, and eavesdroppers can use the powerful storage and computing resources of the cloud server to decrypt confidential signals without time constraints. Based on the system, this paper designs and verifies the physical layer security scheme with joint precoding and Artificial Noise, which fills the gap of the prototype verification platform of information-theoretic security and provides strong support for verifying the unconditional security features of the physical layer security technology. © 2023 SPIE.

关键词： Verification

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False Data Injection Attacks Detection in Smart Grids Based on TCN Prediction Model

False Data Injection Attacks Detection in Smart Grids Based ...

引用

2024 International Conference on Optical communication and Optoelectronic technology, OCOT 2024

作者： Ma, Wendi Wen, Hong Hou, Wenjing Yao, Ruixiang Zhu, Yanxu Yan, Dibao Zhao, Ziang School of Aeronautics and Astronautics University of Elec. Science and Tech. of China Chengdu611731 China Aircrat Swarm Intelligent Sensing and Cooperative Control Key Lab. of Sichuan Province UESTC 611731 China Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province UESTC 611731 China

ISBN: (纸本)9781510683266

The injection of false data attack (FDIA) poses a serious threat to smart grids, and accurate detection of FDIAs is crucial for the secure and stable operation of the grid. A promising approach for FDIA detection based on edge computing is to adopt a scheme that involves prediction before classification, taking into account the temporal correlations of measurement data. This paper proposes a FDIA detection model based on temporal convolutional network (TCN). The model effectively captures long-term dependencies in sequential data, thereby enhancing data prediction performance. Simulation results demonstrate that TCN exhibits superior detection performance under common neural network architectures, compared to typical recurrent neural network (RNN) models. This improvement facilitates highlighting the differences between injected false data and genuine data during the subsequent classification stage, making anomaly detection algorithms more capable of identifying abnormal situations and thereby enhancing the accuracy of FDIA detection. © 2024 SPIE.

关键词： Spatio-temporal data

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Integrated Airborne Radar-communication Waveform Design Based on the Complementary P4-OFDM Signal

Integrated Airborne Radar-Communication Waveform Design Base...

引用

2024 International Conference on Optical communication and Optoelectronic technology, OCOT 2024

作者： Zhao, Ziang Wen, Hong Song, Huanhuan Wang, Yongfeng Yao, Ruixiang Ma, Wendi Pang, Yv School of Aeronautics and Astronautics University of Elec. Science and Tech. of China Chengdu611731 China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Lab. of Sichuan Province UESTC 611731 China Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province UESTC 611731 China

ISBN: (纸本)9781510683266

To meet the specific demands of airborne radar and communication systems, this study introduces an integrated radar-communication waveform design based on selecting the optimal dual sequence of complementary P4-OFDM signals. This waveform leverages the cyclic shift counts of complementary P4 codes to carry communication information, achieving dual functionality in target detection and data transmission. To enhance the data transmission rate, the study innovatively developed a dual cyclic shift signal, which expands the number of states represented by P4 codes using a pair of primary and secondary original sequences. This signal offers exceptionally high speed and distance resolution for radar detection and maintains a low bit error rate in communications, making it particularly suitable for airborne environments where the priority is on communication reliability over efficiency. © 2024 SPIE.

关键词： Bit error rate

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Numerical and experimental demonstrations of a Si-based photonic crystal optomechanical cavity

Numerical and experimental demonstrations of a Si-based phot...

引用

International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Dingwei Chen Sohail Muhammad Xiang Zheng Xinwei Li Guangjun Wen Yongjun Huang School of Information and Communication Engineering Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT University of Electronic Science and Technology of China Chengdu China

In this paper, the optical properties and mechanical modes of a silicon-based hexagonal photonic crystal cavity optomechanical structure are modelled and simulated, the processing of the structure is described, and th... 详细信息

关键词： Systematics Resonant frequency Photonic crystals Electromagnetic waveguides Microcavities Mechanical factors System-on-chip

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High-precision vibration detection based on nano-cavity optomechanical accelerometer

High-precision vibration detection based on nano-cavity opto...

引用

International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Xinwei Li Xing Yan Wenyi Huang Jiangbo Wu Dingwei Chen Yongjun Huang School of Information and Communication Engineering Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT University of Electronic Science and Technology of China Chengdu China

The principle of optical-mechanical coupling system in cavity optomechanical system is analyzed, and the design of a micro-accelerometer with uniaxial straight beam differential structure is presented in this paper for the vibration detection in the wide frequency band. The micro-accelerometer consists of a movable detection mass, four straight beams connected to the top layer of the SOI wafer, two fixed masses and two air slot loading line defect nano photonic crystal cavity. The chip is designed and fabricated, and the experimental test platforms in atmosphere and vacuum are built respectively. The stability, optical resonance, mechanical resonance, optical-mechanical coupling rate, sensitivity, resolution and noise characteristics of the micro-accelerometer are tested and analyzed. Finally, when the input laser intensity is 9 dBm, the vibration detection sensitivity of the micro accelerometer with single axis straight beam differential structure reaches 73.99 mV/g, the AC resolution is 2.1 mg/Hz 1/2 , and the theoretical detection resolution limit is 399.2 μg/Hz 1/2 . The results show that the designed cavity optomechanical system micro-accelerometer has excellent performance and can be applied to the application areas with high requirements for acceleration detection accuracy.

关键词： Vibrations Couplings Accelerometers Sensitivity Optical device fabrication Optical coupling Stability analysis

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Design and Simulation of Photonic Crystal Optomechanical Two-Axis Differential Accelerometer

Design and Simulation of Photonic Crystal Optomechanical Two...

引用

Asia communications and Photonics Conference and Exhibition (ACP)

作者： Jiangbo Wu Xing Yan Changjin Hu Dingwei Chen Jian Li Yongjun Huang Guangjun Wen School of Information and Communication Engineering Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT University of Electronic Science and Technology of China Chengdu China

This paper presents the design and simulation of a new in-plane two-axis differential accelerometer based on the two-dimensional photonic crystal optomechanical cavity structure. The designed accelerometer's theor... 详细信息

ISBN: (纸本)9781665410953

关键词： Accelerometers Sensitivity Optical design Resonant frequency Photonic crystals Optical sensors Optimization

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