• Proceedings of the Korea Information Processing Society Conference
• /
• 2017.04a
• /
• pp.319-322
• /
• 2017

크롬비트는 크롬 OS를 기반으로 하여 사용자 맞춤형 클라우드 서비스를 제공하는 스틱 PC이다. 기존의 크롬북이 이동성을 강조한 외부 인터넷 환경에 특화된 기기라고 할 때, 크롬비트는 스마트 TV구축 등을 비롯한 내부 인터넷 환경에 특화된 기기라고 볼 수 있다. 이처럼 크롬 OS를 실내와 실외에서 사용 가능하다는 것을 감안한다면 클라우드와 사물인터넷 등을 매개로 하는 4차 산업 혁명에 가장 근접한 OS 임에 틀림이 없다. 그럼에도 불구하고 현재 이 운영체제의 개발 속도와 더불어 보안 취약점 분석을 위한 방안은 전혀 마련되어 있지 않다. 그래서 본 논문에서는 취약점 분석 쉘 스크립트 실행을 통한 성능 향상 방안 마련과 크롬 OS의 보안 성능 개선 여부 확인을 살펴보고자 한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2016.10a
• /
• pp.246-249
• /
• 2016

크롬 OS는 온라인에 연결된 상태라면 시간과 장소의 제약 없이 인터넷에 연결해서 사용자 중심의 개인 환경을 제공하는 웹 OS이다. 크롬 OS의 특징이라면 구글 계정으로 접속하여 원하는 APP 설치나 다양한 구글의 온라인 서비스를 자유롭게 이용할 수 있다는 점을 꼽을 수 있다. 특히 기존의 윈도우나 리눅스와는 달리 사용자가 OS 전반에 걸친 설정을 직접 제어할 필요가 없다는 점이 획기적이다. 하지만 웹 OS 임에도 불구하고 이에 대한 보안 대비책이 전혀 마련되어 있지 않다. 따라서 이같은 보안 위협에 대비하기 위해 본 논문은 취약점 분석 쉘 스크립트 구현을 통해 취약점 탐지와 보안 강화를 통한 성능 개선 방안을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2016.04a
• /
• pp.18-21
• /
• 2016

크롬 OS는 구글에서 개발한 운영체제로서 리눅스와 HTML5 기술 등을 도입해 빠른 부팅과 안정적인 프로그램 실행 등을 통해서 윈도우로 대표되어왔던 기존 컴퓨터 운영체제들의 불편함을 개선한 것이 가장 큰 특징이다. 그러나 클라이언트용 OS라는 점을 감안하였을 때 사용자층이 점차 늘어나고 있는 그래픽이나 암호화, 복호화 같은 보다 세분화된 다양한 데이터 처리를 하는데 있어 요구사항을 만족 시키기에는 부족한 부분이 많았다. 이 같은 문제점들은 운영체제 최적화를 통해 해결할 수 있으며, 이 논문에서는 크롬 OS의 가상메모리 설정 변수의 최적화 수치를 찾아 개선하는 방안을 제안한다.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.26 no.5
• /
• pp.731-742
• /
• 2022

PIPO is the latest domestic lightweight block cipher announced in ICISC'20, which is characterized by being lightweight to facilitate implementation on IoT with limited resources. In this paper, PIPO 64/128-bit and 64/256-bit were implemented using web-based languages such as Javascript and WebAsembly. Two methods of performance evaluation were conducted by implementing bitsice and TLU, and the performance was compared by implementing Looped written using for statements and Unrolled written for statements. It performs performance evaluations in various web browsers such as Google Chrome, Mozilla Firefox, Opera, and Microsoft Edge, as well as OS-specific environments such as Windows, Linux, Mac, iOS, and Android. In addition, a performance comparison was performed with PIPO implemented in C language. This can be used as an indicator for applying PIPO block cipher on the web.

• Journal of Digital Forensics
• /
• v.12 no.3
• /
• pp.55-70
• /
• 2018

With the diversification of mobile devices, the development of web technologies, and the popularization of the cloud, an internet-centric web OS that is not dependent on devices has become necessary. Chromebooks are mobile devices in the form of convertible laptops featuring a web OS developed by Google. These Web OS mobile devices have advantages of multi-user characteristics of the same device and storage and sharing of data through internet and cloud, but it is easy to collect and analyze evidence from the forensic point of view because of excellent security and easy destruction of evidence not. In this paper, we propose an evidence collection procedure and an analysis method considering the cloud environment by dividing the Chromebook, which is a web OS mobile device popularized in the future, into user and administrator modes.

• Spatial Information Research
• /
• v.23 no.6
• /
• pp.57-66
• /
• 2015

Recently, the utilization of geospatial open platforms has been constantly increased and the interest in 3D geospatial data such as terrain, building and shopping mall has been increased significantly. In particular, rather than simplified 3D geospatial data, interest in high-precision 3D geospatial data which similarly represents the real world objects has increased significantly. In order to satisfy the demand for such the high-precision 3D geospatial data, various kinds of 3D geospatial open platforms has been developed and has provided services on the web. However, most of the 3D geospatial open platforms have been used plug-in module in order to ensure a fast 3D rendering performance on the web, despite the many problems such as difficulty of the installation, no supporting of cross browser/operating system and security issues. In addition, recently, the existing 3D geospatial open platforms based on plug-in module are facing a serious problem, by declaring the NPAPI service interruption in Chrome and Firefox browsers. In this study, we presents the design and implementation of a new 3D geospatial open platform based on HTML5/WebGL technology without the use of plug-ins. Such the new 3D geospatial open platform based on HTML5/WebGL may support cross browsers such as IE, Chrome, Firefox, Safari and cross OS platforms such as Windows, Linux, Mac and mobile OS platforms.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2011.04a
• /
• pp.40-42
• /
• 2011

Smart hand-held devices like iPhone, iPad, Andriod and other mobile-OS machines are becoming a well known part of our daily lives. Utilization of these devices has gone beyond the expectations of their inventors. Evolution of Apple's iOS from a mobile phone Operating System to a wholesome platform for Portable Gaming is an adequate proof. Using these smart devices people are downloading applications from numerous online App Stores. Utilizing remote storage facilities and confining themselves to computing power far below than an entry level laptop, netbooks have emerged. Google's idea of Chrome OS coupled with Google's AppEngine is an eye-opener for researchers and developers. Keeping all these industry-proven innovations in mind we are proposing a Context-Driven Cloud-Oriented Application Architecture for smart devices. This architecture enables our smart devices to behave smarter by utilizing very less of local resources.