• Journal of the Institute of Electronics Engineers of Korea CI
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• v.47 no.6
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• pp.93-102
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• 2010

Existing web based information service system solutions show limitations in mobile information services, as well as problems such as uncertain error messages, and difficulty providing swift assistance or real time emergency support. In order to solve these deficiencies, a realtime wireless remote control system has been designed and implemented in this thesis, which is capable of managing and monitoring remote systems using mobile communication devices (Mobile Phone, PDA, Smart Phone) for realtime control. Proposed systems are applied at remote places, for instance 'office building', and a nursery school like 'kindergarten'. In the case of implemented at office building, it can be managing and controlling at real time all sorts of the sensor information that are installed at office building system environment through wire(web environment) or wireless(mobile device). In the other case at kindergarten system that are providing the real-time wireless remote control and monitoring system can be monitoring activity of kindergarten children with a mobile phone of authentication user. The security functions of proposed systems include mobile device user authentication and target system access control. The proposed systems allow real-time user authentication function and system access control function that improve the security of resource administrators and mobile device users, and provides not only uninterrupted services, but also real time mobile service environments.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.8 no.2
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• pp.540-546
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• 2014

Recently a new government has announced an action plan known as the government 3.0, which aims to provide customized services for individual people, generate more jobs and support creative economy. Leading on from previous similar initiatives, the new scheme seeks to focus on open, share, communicate, and collaborate. In promoting Government 3.0, the crucial factor might be how to align the core services and policies of Government 3.0 with correspoding technologies. The paper describes the concepts and features of Government 3.0, identifies emerging Internet-based technologies and services toward the initiative, and finally provides improvement plans for Government 3.0. As a result, 10 issues to be brought together include: Smart Phone Applications and Service, Mobile Internet Computing and Application, Wireless and Sensor Network, Security & Privacy in Internet, Energy-efficient Computing & Smart Grid, Multimedia & Image Processing, Data Mining and Big Data, Software Engineering, Internet Business related Policy, and Management of Internet Application.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.2
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• pp.189-200
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• 2012

With increasing the number of smart device such as Tablet PC, smart phone and netbook, information security which based on smart device in mobile environment have become the issue. It is important to enter a password safety. In various types of mobile devices, because of hardware limitation of device, it is difficult that to equip secondary input device such as keyboard and mouse. Also, a loss of accuracy becomes a problem because input information was entered by touch screen. Because of problem mentioned above it can be predicted to change password scheme text based password scheme to graphical password scheme, graphical password scheme is easy to use and is resistant to shoulder surfing attack. So this paper proposes new graphical password scheme based 5 strokes which are made by decomposed the Korean to defend against shoulder surfing attack.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.325-326
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• 2013

최근 들어 스마트폰이 급격하게 보급됨에 따라 스마트폰과 다른 모듈을 이용한 시스템이 많이 개발되고 있다. 현재 보안 카메라는 cctv카메라가 주를 이루고 있는데, 보통 그 정보를 컴퓨터에 받아 저장하거나 휴대폰으로 현재 영상을 확인하는 것이 대부분이다. 우리는 계속 화면을 동영상으로 저장하지 않고 전방에 사물이 인식 되었을 때 스틸 이미지 한 장을 찍어 휴대전화에 무언가가 찍혔다는 알람을 남겨준다. 이는 집안이나 인적이 드문 창고에 설치하면 유용하게 사용될 수 있을 것으로 생각된다.

• Journal of Digital Convergence
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• v.11 no.12
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• pp.423-430
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• 2013

With the active Internet e-commerce and the financial sector, mutual authentication between users and service providers has become very important. Because ID- and password-based authentication is of low security, one-time password authentication methods are widely used. The existing one-time password authentication scheme of S/Key authentication method is fraught with a number of issues in addition to plain text transmission, and the method of Kim Gong-ki et al. does not offer suggestions for session key generation and distribution method. Proposed in this paper is a protocol that solves these problems.

• Journal of Advanced Navigation Technology
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• v.15 no.5
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• pp.887-892
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• 2011

Recently iPad has been released, so users interest in new portable device is increasing. As markets grow, experts are forecasting a increase of investigation about tablet PC. However iPad forensics is very difficult using existing smart phone forensic softwares. especially, those softwares can't analyze korean mobile application. This paper describes collecting/analyzing technique for iPad.

• Convergence Security Journal
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• v.9 no.2
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• pp.85-89
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• 2009

This study to solve these problems a search system has been designed by combining the two methods. Also the search and manage image data by handheld devices such as portable PDA or smart phone, a system has been designed application to an embedded system. Once this is used, multimedia data can be efficiently searched and utilized by handheld devices.

• Convergence Security Journal
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• v.16 no.7
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• pp.93-100
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• 2016

Important evidence or clue in general crime as well as crime relevant to computer has been discovered in digital devices including computer with advance of information technology and turning into a information-oriented society. A leakage of industrial technology and confidential business information is related to digital devices such as computer, smart phone, USB, etc. This paper deal with a current state and comparison analysis of digital forensic technology for developing way of forensic field, so we seek for method of preventing information leakage.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.199-201
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• 2014

본 연구는 스마트앱을 이용한 자체 홈 시큐리티 시스템의 적용가능에 관한 논의이다. 이러한 연구목적을 위하여 기존 시큐리티 시스템의 변천과정을 살펴보고 향후 전개 될 스마트앱을 이용한 자체 홈 시큐리티의 도입에 대해 살펴보고 문제점과 발전방안에 대한 시사점을 제공하는데 목적이 있다. 이제는 과거 통신사를 이용한 기계경비의 물리적 대응으로 사용자 스스로가 서비스 제공회사에 임대비를 지불하는 방식에서 분리되어 개인이 스마트앱을 이용한 자체 홈시큐리티의 시스템 도입은 현실화가 되면서 기존 서비스를 제공하는 회사의 경영체제 방식의 변화, 기술력의 한계, 제도적 측면의 개선 등을 논의하고자 하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.327-328
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• 2015

본 논문은 지하공동구에서의 출입자의 통제를 위해 스마트폰을 이용한 출입관리시스템을 제안한다. 제안하는 시스템은 지하공동구 자동개폐기의 MCU를 통해 온습도, 개폐기의 상태, 출입자의 기록 등 다양한 정보를 취득하여 관리한다. 이때 취득한 정보는 블루투스4.0 모듈을 통해 ECB 암호화 방식을 사용하여 스마트폰에 전송한다. 본 논문에서 제안하는 출입관리시스템은 기존 물리적인 키에 의존하던 출입 방식을 대체하여 신뢰성 있는 보안 및 체계적인 관리가 가능할 것으로 기대한다.