• Title/Summary/Keyword: Device identification

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Static Identification of Firmware Linux Kernel Version by using Symbol Table (심볼 테이블을 이용한 펌웨어 리눅스 커널 버전 정적 식별 기법)

  • Kim, Kwang-jun;Cho, Yeo-jeong;Kim, Yun-jeong;Lee, Man-hee
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.32 no.1
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    • pp.67-75
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    • 2022
  • When acquiring a product having an OS, it is very important to identify the exact kernel version of the OS. This is because the product's administrator needs to keep checking whether a new vulnerability is found in the kernel version. Also, if there is an acquisition requirement for exclusion or inclusion of a specific kernel version, the kernel identification becomes critical to the acquisition decision. In the case of the Linux kernel used in various equipment, sometimes it becomes difficult to pinpoint the device's exact version. The reason is that many manufacturers often modify the kernel to produce their own firmware optimized for their device. Furthermore, if a kernel patch is applied to the modified kernel, it will be very different from its base kernel. Therefore, it is hard to identify the Linux kernel accurately by simple methods such as a specific file existence test. In this paper, we propose a static method to classify a specific kernel version by analyzing function names stored in the symbol table. In an experiment with 100 Linux devices, we correctly identified the Linux kernel version with 99% accuracy.

An Implementation of RFID Feeding History System with Improved Tagging Methods in land-based Aquaculture Farms (육상 수조식 양식장에서 개선된 태깅 방법에 의한 RFID 급이 이력 시스템 구현)

  • Ye, Seoung-Bin;Jung, Sung-Ju;Ceong, Hee-Taek;Han, Soon-Hee
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.3
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    • pp.745-753
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    • 2010
  • Many studies using RFID which can identify the movement of targeted objects has been conducted actively. In this paper, we propose improved tagging method to check exactly the amount of fish feed by the aquaculture tank in a land-based aquaculture farm and design the RFID feeding system to perform auto feeding history. Also, we implement the prototype system which it includes development program for auto-identification and auto-recording and self-made RFID feeding cart equipped the weight device, RFID reader, control module and display device.

Energy Efficiency for Building Security Application of Adaptive Error Control and Adaptive Modulation (빌딩 보안 어플리케이션의 적응 오류제어와 적응 변조의 에너지 효율에 관한 연구)

  • Long, Bora;Kang, Heau-Jo
    • Journal of Advanced Navigation Technology
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    • v.11 no.4
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    • pp.423-429
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    • 2007
  • Since the wireless smart card has played a main role in the identification security application for the building access; this research has its purpose to improve the performance of the smart card system and aims to offer more convenient to user. The contactless cards do not require insertion into a card reader and can work up to centimeters away from the reading device. To be able to cope with this performance the controlling of power consumption through the adaptive modulation and error control is needed. This paper addresses a forward error control (FEC) scheme with the adaptive Reed-Solomon code rate and an M-ary frequency shift keying (M-FSK) modulation scheme with the varying symbol size M over the link. The result of comparing energy efficiencies of adaptive error correction and adaptive modulation to other various static schemes shows to save over 50% of the energy consumption.

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Sensitivity and Scoring of AutoPap 300 QC System for Abnormal Cervicovaginal Cytology (비정상 자궁경부도말에서 AutoPap 300 QC System의 민감도와 Score에 영향을 주는 인자의 평가)

  • Hong, Sung-Ran
    • The Korean Journal of Cytopathology
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    • v.9 no.2
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    • pp.139-146
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    • 1998
  • The AutoPap 300 QC System is an automated device for the analysis and classification of conventional cervical cytology slides for quality control purpose. These studies evaluated the sensitivity of the AutoPap 300 QC System, and estimated morphologic features other than epithelial abnormality to identify a high quality control(QC) score with the AutoPap 300 QC System. The sensitivity of the AutoPap 300 QC System at 10% review rate for 210 cases of cervicovaginal cytology with low grade squamous intraepithelial lesion(LSIL) and higher grade lesion was assessed, and compared with a 10% random rescreening. The morphologic features, such as presence of endocervical component, dirty background, atrophy, abnormal ceil size, and celluiarity of single atypical cells were estimated in 45 cases of no review and 30 cases of QC review cases. The AutoPap 300 QC System identified 119(56.7%) out of 210 cases with LSIL and higher grade lesion at 10% review rate. It was more sensitive to squamous cell lesions$(50{\sim}62%)$ than to glandular lesions(10%). The dirty background and the scanty cellularity of single atypical cells were significantly related to low QC score. Conclusively, AutoPap 300 QC System is superior to human random rescreen for the identification of false negative smears. The upgrading of this device is required to enhance the defection of glandular lesion and certain Inadequate conditions of the slides.

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Best Site Identification for Spatially Distributed On-Site Stormwater Control Devices in an Urban Drainage System (도시유역에서 공간적으로 분포된 소규모 강우유출수 관리시설의 최적설치위치선정)

  • Kim, Sangdan;Lim, Yong Kun;Kim, Jin Kwan;Kang, Dookee;Seo, Seongcheol;Lee, Jae Kwan
    • Journal of Korean Society on Water Environment
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    • v.26 no.6
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    • pp.986-993
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    • 2010
  • Spatially distributed on-site devices such as bioretentions and bioboxfilters are becoming more common as a means of controlling urban stormwater quality. One approach to modeling the cumulative catchment-scale effects of such devices is to resolve the catchment down to the scale of a land parcel or finer, and then to model each device separately. The focus of this study is to propose a semi-distributed model for simulating urban stormwater quantity and identifying best sites for spatially distributed on-site stormwater control devices in an urban drainage system. A detailed model for urban stormwater improvement conceptualization simulation is set up for a $0.9342km^2$.

A Design of Security Protocol for Active Warehouse Condition Management System based on Ubiquitous Environment (유비쿼터스 환경에능동형 창고 상태관리를 위한 보안 프로토콜 설계)

  • John, Young-Jun;Choi, Yong-Sik;Shin, Seung-Ho;Park, Sang-Min
    • Journal of the Korea Safety Management & Science
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    • v.8 no.6
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    • pp.91-108
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    • 2006
  • RFID/USN is important infrastructure of the ubiquitous society. And so, It is various and practical research is attempted. These two base technology have physical characteristic and complement relationship. Like this relationship is applied Following example that is system research which manages warehouse stocks and conditions. First, We adhere RFID Tag at the Pallet of the warehouse and do identification goods. And then, It grasps the environment state information of stocks with sensor module which has Zigbee wireless communication function. From like this process RFID Tag information and jop-control command of sensor node also it is exposed to air. Therefore, We control sensor node in USN/RFID environment through the mobile device. And system design for the security Apply of the process is main purpose of this paper's. We propose the condition and function of the mobile device to the secondary. And We define the relation of the sensor node with RFID to be arranged to a warehouse. Finally, This paper is designed to find a trade-off of the following viewpoints. First, We offer suitable sensor-control information to a actual manager. Second, We offer RFID tag security approach to control the action of the sensor. Third, It increases the survivability of sensor node form.

Design and Implementation of User Authentication System Using USIM Information (USIM 정보를 이용한 사용자 인증 방안 설계 및 구현)

  • Lee, Jin-Woo;Kim, Seon-Joo;Jo, In-June
    • The Journal of the Korea Contents Association
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    • v.17 no.7
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    • pp.571-578
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    • 2017
  • In order to approach information system through smart device and pc, user has to authenticate him or herself via user authentication. At that time when user tries reaching the system, well-used user authentication technologies are ID/PW base, OTP, certificate, security card, fingerprint, etc. The ID/PWbased method is familiar to users, however, it is vulnerable to brute force cracking, keylogging, dictionary attack. so as to protect these attacks, user has to change the passwords periodically as per password combination instructions. In this paper, we designed and implemented a user authentication system using smartphone's USIM without using password while enhancing security than existing ID / PW based authentication technology.

An Empirical Study on the Application of Drone based on LED-ID & RFID for Effective Stock Management of Unit Load Device - perspective of Air Cargo Terminal Case (항공화물 탑재용기(ULD)의 효율적 관리를 위한 LED-ID와 RFID 기반의 드론 적용 방안에 관한 연구- 항공화물터미널사례)

  • Baik, Namjin;Baik, Namkyu;Lee, Minwoo;Cha, Jae-Sang
    • Journal of Satellite, Information and Communications
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    • v.12 no.4
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    • pp.157-161
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    • 2017
  • Effective management of ULD (Unit Load Device) in Air Cargo Transportation is one of the Airline's main concerns. At present, the way of management of ULD which has the ID tag based on RFID is carried by cargo control staff with PDA. However, the activity of ULD management is limitted due to complexity of cargo terminal facilities. In this study, we offer the effective way of management of ULD by the DRONE equipped by LED-ID & RFID READER at the higher altitude in Air Cargo Terminal to recover the difficulty of identification due to complexity of terminal facilities. Further to the above, we suggest the operational effectiveness, limitation, and the direction of future research.

Development of Position Recognition System by Wireless Communication (무선통신을 이용한 위치인식 시스템 개발)

  • Sohn, Jong-Hoon;Hwang, Gi-Hyun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.6
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    • pp.1477-1486
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    • 2013
  • In this paper, Implementation of location estimation system using wireless communication technology based on Zigbee. Using wireless communication technology, calculation more accurate location information and service location information to the H/W and S/W has been developed. Receivers, repeaters, smart tag(location device), was developed for implement a location estimation system. The smart tag is built the 120~130KHz, 13~14MHz, 2.0~3.0GHz radio frequency tag. Receiver and repeater is applied to the tag module to recognize the location device's active RFID tags transmit a wireless signal for tag identification. Common Entrance control system in contact with a smart tag, It was implemented to transfer the value of the tag to the access control server over a LAN.

Interface Study of the Intermediate Connectors in Tandem Organic Devices

  • Tang, Jian-Xin;Fung, Man-Keung;Lee, Chun-Sing;Lee, Shuit-Tong
    • Journal of Information Display
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    • v.11 no.1
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    • pp.1-7
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    • 2010
  • The intermediate connectors play crucial roles in the performance of tandem organic light-emitting diodes (OLEDs) because they are required to facilitate charge carrier transport and to guarantee transparency for light transmission and deposition compatibility. Understanding the physical properties of the intermediate connector is not only fundamentally important but is also crucial to developing high-efficiency organic devices with a tandem structure. In this study, several effective intermediate connectors in tandem OLEDs using a doped or non-doped organic p-n heterojunction were systematically investigated by studying their interfacial electronic structures and corresponding device characteristics. The working mechanisms of the intermediate connectors are discussed herein by referring to their relevant energy levels with respect to those of the neighboring organic layers. The factors affecting the operation of the intermediate connectors in tandem OLEDs, as demonstrated herein, provide guidance for the identification of new materials and device architectures for high-performance devices.