• Title/Summary/Keyword: Physical protection system

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Protecting Privacy of User Data in Intelligent Transportation Systems

  • Yazed Alsaawy;Ahmad Alkhodre;Adnan Abi Sen
    • International Journal of Computer Science & Network Security
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    • v.23 no.5
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    • pp.163-171
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    • 2023
  • The intelligent transportation system has made a huge leap in the level of human services, which has had a positive impact on the quality of life of users. On the other hand, these services are becoming a new source of risk due to the use of data collected from vehicles, on which intelligent systems rely to create automatic contextual adaptation. Most of the popular privacy protection methods, such as Dummy and obfuscation, cannot be used with many services because of their impact on the accuracy of the service provided itself, they depend on changing the number of vehicles or their physical locations. This research presents a new approach based on the shuffling Nicknames of vehicles. It fully maintains the quality of the service and prevents tracking users permanently, penetrating their privacy, revealing their whereabouts, or discovering additional details about the nature of their behavior and movements. Our approach is based on creating a central Nicknames Pool in the cloud as well as distributed subpools in fog nodes to avoid intelligent delays and overloading of the central architecture. Finally, we will prove by simulation and discussion by examples the superiority of the proposed approach and its ability to adapt to new services and provide an effective level of protection. In the comparison, we will rely on the wellknown privacy criteria: Entropy, Ubiquity, and Performance.

Study of an Efficient Method for Securing Evidence During the Fire Investigation (화재조사 시 증거물의 효율적인 확보 방안에 관한 연구)

  • Ye, Su-Jo;Choi, Don-Mook
    • Fire Science and Engineering
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    • v.30 no.6
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    • pp.43-47
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    • 2016
  • The recent changes in the judicial system in South Korea, including the stronger trial-centrism and legal market opening, have made fire investigations seek more scientific evidence and structure. The collection of physical evidence is very important to prove the substantial truth of a fire at the court. Without the appropriate physical proof, the credibility of a fire investigation is lost as evidence in a court. Therefore, the fire investigation team needs to carefully handle the fire site and fire initiation evidence because evidence of a fire incident can be destroyed easily by chemical and physical damage. In addition, the fire investigation team also needs to carefully record the collections of any evidence including pictures and their analysis. This study proposed the needs of the procedure manual and guidelines that can provide a step-by-step process of fire investigations in South Korea. This study also helps fire investigation agencies to secure fire-scene evidence to distinctly investigate the facts of fire. The guidelines and manual can eventually improve the ways for the fire investigation processes in South Korea.

A Study on Security Management Methods for Information System of Educational Institutions (교육기관의 정보시스템 보안관리 방안 연구)

  • Choi, JinMyung;Kim, DooYeon
    • The Journal of Korean Association of Computer Education
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    • v.20 no.6
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    • pp.95-104
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    • 2017
  • The damage caused by information spill, forgery, falsification, and deletion by cyber infringement in educational institutions and universities is very large. In this study, we analyzed the types, causes, and problems of cyber infringement in educational administrative institutions and universities. As a result, administrative, physical and technical information protection activities were weak. In this paper, we propose a security enhancement method for each domain by dividing them into Internet zone, network-neutral zone (DMZ: Demilitarized Zone), general server zone, internal server zone (Server Farm), and user zone so that these vulnerabilities can be easily identified, supplemented or security enhanced. In addition, we have proposed a method to apply security information system architecture and information protection technology correctly for educational administration institutions and universities. This study is meaningful not to provide conceptual guidance but to suggest specific action and procedure oriented security management plan.

Biometric and Identity Reference Protection (개인식별정보와 바이오인식정보의 보호기법)

  • Shin, Yang-Nyuo;Kwan, Man-Jun;Lee, Yong-Jun;Park, Jin-Il;Chun, Myung-Geun
    • Journal of the Korean Institute of Intelligent Systems
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    • v.19 no.2
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    • pp.160-167
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    • 2009
  • This paper describes how to protect the personal information of a biometric reference provider wherein biometric reference and personally identifiable information are bounded in a biometric system. To overcome the shortcomings of the simple personal authentication method using a password, such as identify theft, a biometric system that utilizes physical and behavioral characteristics of each person is usually adopted. In the biometric system, the biometric information itself is personal information, and it can be used as an unique identifier that can identify a particular individual when combining with the other information. As a result, secure protection methods are required for generating, storing, and transmitting biometric information. Considering these issues, this paper proposes a method for ensuring confidentiality and integrity in storing and transferring personally identifiable information that is used in conjunction with biometric information, by extending the related X9.84 standard. This paper also outlines the usefulness of the proposition by defining a standard format represented by ASN.1, and implementing it.

Characteristics Analysis of Highly Elastic Materials according to the Graphite Content and a Simulation Study of Physical Properties Prediction Using a Nonlinear Material Model (열팽창성 그래파이트 함량에 따른 고탄성 도료 소재의 특성 분석 및 비선형 재료모델을 활용한 물성 예측 시뮬레이션 연구)

  • Yu, Seong-Hun;Lee, Jong-Hyuk;Kim, Dae-cheol;Lee, Byung-Su;Sim, Jee-Hyun
    • Textile Coloration and Finishing
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    • v.34 no.4
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    • pp.250-260
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    • 2022
  • In this research, a high-elasticity acrylic emulsion binder with core-shell polymerization and self-crosslinking system is mixed with a flame-retardant water-dispersed polyurethane (PUD) binder. In addition, finite element analysis was conducted through virtual engineering software ANSYS by applying three representative nonlinear material models. The most suitable nonlinear material model was selected after the relative comparison between the actual experimental values and the predicted values of the properties derived from simulations. The selected nonlinear material model is intended to be used as a nonlinear material model for computational simulation analysis that simulates the experimental environment of the vibration test (ASTM E1399) and the actual fire safety test (ASTM E1966). When the mass fraction of thermally expandable graphite was 0.7%, the thermal and physical properties were the best. Among the nonlinear material models, the simulation result of the Ogden model showed the closest value to the actual result.

Personal Information Protection Using Digital Twins in the Fourth Industrial Revolution (4차 산업혁명 시대의 디지털트윈을 활용한 개인정보보호)

  • Kim, Yong-Hun
    • Journal of Digital Convergence
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    • v.18 no.6
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    • pp.279-285
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    • 2020
  • In the era of the Fourth Industrial Revolution, there are many sensors around. People and things are connected to these sensors to the internet. Numerous connected sensors produce the latest data in seconds, and these data are stacked with big data of unimaginable size. Because personal information can be contained in any place of data produced, device and system protection are needed. Digital twins are virtual models that accurately reflect the status information of physical assets and systems that utilize them. The characteristic of digital twin is that digital twin itself has temporal and structural identity enough to represent the object of reality. In the virtual environment the reproduced reality, it continuously simulates and it virtuals of the point of time or the future, the replica can be created. Therefore, this study cited factors threatening personal information in the era of the Fourth Industrial Revolution. And proposed using digital twin technology that can simulate in real-time to overcome the risk of personal information hacking.

Security Analysis and Improvements of Authentication Protocol for Privacy Protection in RFID Systems (프라이버시 보호를 위한 RFID 인증 프로토콜의 안전성 분석과 개선)

  • Kim, Jiye;Won, Dongho
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.41 no.5
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    • pp.581-591
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    • 2016
  • RFID(Radio Frequency IDentification) is a key technology in ubiquitous computing and is expected to be employed in more fields in the near future. Nevertheless, the RFID system is vulnerable to attacks by eavesdropping or altering of the messages transmitted in wireless channels. In 2013, Oh et al. proposed a mutual authentication protocol between a tag and a reader in RFID systems. Their protocol is designed to resist location tracking for privacy protection. However, all tags and readers use only one network-wide key in their protocol and tags are usually vulnerable to physical attacks. We found that their protocol is still vulnerable to tag/reader impersonation attacks and location tracking if an attacker obtains the network-wide key from a tag. In this paper, we propose a security improved authentication protocol for privacy protection in RFID systems. In addition, we demonstrate that the proposed scheme is efficient in terms of computation and communication costs.

Study on the water bursting law and spatial distribution of fractures of mining overlying strata in weakly cemented strata in West China

  • Li, Yangyang;Zhang, Shichuan;Yang, Yingming;Chen, Hairui;Li, Zongkai;Ma, Qiang
    • Geomechanics and Engineering
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    • v.28 no.6
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    • pp.613-624
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    • 2022
  • A study of the evolution of overburden fractures under the solid-fluid coupling state was conducted based on the geological and mining characteristics of the coal seam depth, weak strata cementation, and high-intensity mining in the mining areas of West China. These mining characteristics are key to achieving water conservation during mining or establishing groundwater reservoirs in coal mines. Based on the engineering background of the Daliuta Coal Mine, a non-hydrophilic simulation material suitable for simulating the weakly cemented rock masses in this area was developed, and a physical simulation test was carried out using a water-sand gushing test system. The study explored the spatial distribution and dynamic evolution of the fractured zone in the mining overburden under the coupling of stress and seepage. The experimental results show that the mining overburden can be vertically divided into the overall migration zone, the fracture extension zone and the collapse zone; additionally, in the horizontal direction, the mining overburden can be divided into the primary fracture zone, periodic fracture zone, and stop-fracture zone. The scope of groundwater flow in the overburden gradually expands with the mining of coal seams. When a stable water inrush channel is formed, other areas no longer generate new channels, and the unstable water inrush channels gradually close. Finally, the primary fracture area becomes the main water inrush channel for coal mines. The numerical simulation results indicate that the overlying rock breaking above the middle of the mined-out area allows the formation of the water-conducting channel. The water body will flow into the fracture extension zone with the shortest path, resulting in the occurrence of water bursting accidents in the mining face. The experimental research results provide a theoretical basis for the implementation of water conservation mining or the establishment of groundwater reservoirs in western mining areas, and this theoretical basis has considerable application and promotion value.

A Study on Evaluation Method of IDC in the Wire/Wireless Integrated Environment (유.무선 통합환경에서의 IDC 평가방법에 관한 연구)

  • Lee, Jea-Pyuing;Park, Jin-Seok;Lee, Man-Woo;Kim, Sun-Gohn
    • Proceedings of the Korea Contents Association Conference
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    • 2006.11a
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    • pp.599-603
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    • 2006
  • Korea Information Security Agency has executed the certification system for the information security management since 2002 and examines the conformance of the IDCs'total management system including the technical and the physical protection measure. However, this certification system has the standard only for the IDC in the wire/wireless segregated and the evaluation method for the wire/wireless integrated has not been suggested yet. This paper is on the basis of "Accumulation Information Communication Facility Secure Principle", guidelines of Wireless LAN security operation, the existing principles and recommendations of the information security and the data on IDC environment. And the paper suggests the IDC network model in the wire/wireless integrated and the IDC evaluation method.

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An Satellite Communication Wireless Package System Using Analysis of Channel Interference between ISM band Systems (ISM 대역 시스템간 채널 간섭 분석을 통한 위성 통신 무선 패키지시스템 적용)

  • Ko, Hojeong;Cha, Jaesang
    • Journal of Satellite, Information and Communications
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    • v.10 no.3
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    • pp.78-83
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    • 2015
  • In this paper, when WLAN repeater of satellite communication package system as a novel wireless disaster communication network connected to LTE D2D mobile terminal, we analyzed radio channel interference from WLAN and WPAN system of adjacent same ISM band using Monte-Carlo method. In this study, WLAN cell radius was determined using Extended Hata Model considering practical environment, and simulated physical protection distance and density in the dense-mode to minimize interference from WLAN, Bluetooth, and ZigBee. Simulation results, WLAN repeater can be operated with 15 WLAN interferer over 130m distance, 23 Bluetooth interferer over 100m distance, and with 62 ZigBee interferer over 83m distance.