• KIPS Transactions on Computer and Communication Systems
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• v.6 no.2
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• pp.87-94
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• 2017

Microsoft Office is an office suite of applications developed by Microsoft. Recently users with malicious intent customize Office files as a container of the Malware because MS Office is most commonly used word processing program. To attack target system, many of malicious office files using a variety of skills and techniques like macro function, hiding shell code inside unused area, etc. And, people usually use two techniques to detect these kinds of malware. These are Signature-based detection and Sandbox. However, there is some limits to what it can afford because of the increasing complexity of malwares. Therefore, this paper propose methods to detect malicious MS office files in Computer forensics' way. We checked Macros and potential problem area with structural analysis of the MS Office file for this purpose.

• JOURNAL OF ELECTRICAL WORLD
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• no.3 s.207
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• pp.89-96
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• 1994

• KSCI Review
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• v.19 no.2
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• pp.49-51
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• 2011

• Journal of Korea Society of Industrial Information Systems
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• v.15 no.5
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• pp.137-148
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• 2010

In this paper, a mobile office support. system which consists of mobile devices and servers is proposed. An efficient mobile office support system is required to study since the existing mobile office support systems may face the serious problems such as an absence of interoperability, difficulties of data synchronization and device management in the near future, especially when a company has a large number of outdoor service employees. In this paper, a mobile office support system requirements for a company with a large number of outdoor service employees is proposed. And then, the methods to satisfy the requirements using a remote data synchronization and a remote device management technologies are proposed. The mobile office support system proposed in this paper synchronizes remotely a large number of various mobile devices of employees with centralized servers located in the company. In addition, it manages the mobile devices remotely for the employees. This paper proposes a mobile office support system based on OMA(Open Mobile Alliance) DS(Data Synchronization) and DM(Device Management) protocols. As OMA DS and DM protocols are de facto international standards, the interoperability between the mobile office support systems can be guaranteed.

• Journal of Information Technology and Architecture
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• v.9 no.4
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• pp.433-442
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• 2012

This paper focuses on developing a smartphone-based mobile office system for a logistics company in Korea using HTML5. Mobile office is smart working environment of working out of a company office using mobile devices such as smartphones and portable computers which are connected to the company servers via WiFi or 3G/4G. Recently many companies are introducing mobile office information systems with the smartphone wave, but they are having difficulties in maintaining and updating their systems due to the transformative mobile application platform. Therefore, we need a platform-independent implementation tools for the mobile office application and HTML5 is one of the solution tools. In this paper, we develop mobile and web applications applicable to all kinds of mobile devices such as iOS, android and windows mobile etc using HTML5. The proposed mobile office system consists of groupware, marketing management, reporting module and transportation management system.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.160-162
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• 2011

본 논문에서는 Zigbee 통신을 이용하여 대기전력을 차단함 함으로써 전력 소비를 줄이기 위한 스마트 오피스 시스템의 설계 및 구현에 관하여 기술한다. 구현된 시스템은 Server를 통하여 각 Client의 전류에 대한 통제를 가능하게 하며, 전력 사용 상황과 전력량 정보를 통해 사용자에게 고지함으로써 기존의 전자기기의 대기전력의 소비를 줄일 수 있다. 또한 외부 장치에서 Server로의 접근을 통해 제어할 수 있도록 하여 공간적인 문제도 고려하였다. 실험 결과를 통해 시스템을 이용함으로써 대기전력 소비가 종전보다 작아짐을 확인 할 수 있었다. Server는 ARM과 C#, Client는 ATmega와 C를 이용하여 구현하였다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.2
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• pp.153-159
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• 2014

For smart work (smart office), RDP(Remote Desktop Protocol) connection is the most popular method. When the office workers do not have personal space, smart office is very useful. That is, they can connect personal computer using Internet at cafe or public spaces. Using the smart office, it is possible to make personal business environment to increase business efficiency. In this paper, we designed and implemented smart office using RDP (Remote Desktop Protocol). We expected that the office workers can be used smart office for business efficiency.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.698-701
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• 2013

현대 사회는 모바일 장치와 통신기술의 발달로 장소와 상관없이 자유롭게 네트워크에 접속할 수 있게 되었다. 모바일 디바이스 사용자의 폭발적인 증가는 이동성이 보장된 모바일 오피스 환경 구현을 가속화시키고 있으며 개인의 모바일 기기를 업무에 사용하는 경향도 두드러지고 있다. 개인소유 디바이스를 통해 기업 네트워크에 접속하는 횟수가 늘어나면서 기기를 통해 중요한 데이터의 분실이나 유출과 같은 보안 문제를 해결하려는 연구들이 발표되었다. 이와 같은 보안 문제 해결 방안으로 통합적으로 이동 단말을 관리하는 MDM(Mobile Device Management) 시스템 도입이 전망되고 있다. 하지만 아직 MDM 시스템에 대한 위협, 보안에 대한 연구가 미흡하다. 이에 본 논문에서는 보안강화와 효율적인 MDM 시스템 사용을 위해 MDM 시스템을 기반으로 위치정보를 활용하여 모바일 오피스 보안 시스템을 설계하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.01a
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• pp.15-18
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• 2020

특정 영화의 스크린 독과점이 꾸준히 논란이 되고 있다. 본 논문에서는 영화 스크린 분배의 불평등성을 지적하고 이에 대한 개선을 요구할 근거로 머신러닝 기법을 활용한 영화 관람객 예측 모델을 제안한다. 이에 따라 KOBIS, 네이버 영화, 트위터, 구글 트렌드에서 수집한 3,143개의 영화 데이터를 이용하여 랜덤포레스트와 그라디언트 부스팅 기법을 활용한 영화 관람객 예측 모델을 구현하였다. 모델 평가 결과, 그라디언트 부스팅 모델의 RMSE는 600,486, 랜덤포레스트 모델의 RMSE는 518,989로 랜덤포레스트 모델의 예측력이 더 높았다. 예측력이 높았던 랜덤포레스트 모델을 활용, 상영관을 크게 확보하지 못 했던 봉준호 감독의 영화 '옥자'의 상영관 수를 조절하여 관람객 수를 예측, 6,345,011명이라는 결과를 제시한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.19 no.5
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• pp.105-118
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• 2009

In modern society, as the rapid development of IT technology combined with the computer-based high-speed communication networks makes it possible to provide a wide spectrum of services and devices, we have been confronting a new cultural transformation era, referred to as the information society. However, the requirements to be considered in security aspect have became more complicated and diversified, and there remains the same security weaknesses as in the existing media or protocol. Particularly, the office network device with roaming is susceptible to the different kinds of attacks such as terminal hacking, virus attacks, and information leakage because the computing capacity is relatively low and the loading of already developed security functions is difficult. Although developed as one solution to this problems, PKI security authentication technology isn't suitable for multi-domain environments providing uonments proffice network service, and so the development of a novel authentication system is needed. Therefore, in this paper researched the roaming and device authentication/auth for multitechnology using an ID-based public key, authorization ticket, and Sub-device ticket with a purpose to contribute to the development of the secured and efficient technology.