• Journal of the Korea Institute of Information Security & Cryptology
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• v.24 no.3
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• pp.499-505
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• 2014

According to the increasing use of smart devices such as smart phones and tablets, the service that targets mobile office, finance and e-government for convenience of usage and productivity has emerged significantly. As a result, important information is treated with the smart devices and also, the malicious activity that targets smart devices is increasing steadily. In particular, the damage case by harmful sites, malware distribution sites and phishing sites that targets smart devices has occurred steadily and it has emerged as a social issue. In the case of smart devices, the Android platform is occupied the 90% in Korea, 2013 therefore the method of device block level is required to resolve the social issues of smart devices. In this paper, we propose a method that can be effectively blocked when you try to access an illegal site to Web browser on the Android platform and develop the application and also analyze the wrong site block function.

• The Journal of the Korea Contents Association
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• v.8 no.12
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• pp.37-44
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• 2008

Data entered into RFID tags are used for saving costs and enhancing competitiveness in the development of applications in various industrial areas. RFID readers perform the identification and search of hundreds of objects, which are tags. RFID technology that identifies objects on request of dynamic linking and tracking is composed of application components supporting information infrastructure. Despite their many advantages, existing applications, which do not consider elements related to real.time data communication among remote RFID devices, cannot support connections among heterogeneous devices effectively. As different network devices are installed in applications separately and go through different query analysis processes, there happen the delays of monitoring or errors in data conversion. The present study implements a RFID database handling system in semantic Web environment for integrated management of information extracted from RFID tags regardless of application. Users’ RFID tags are identified by a RFID reader mounted on an application, and the data are sent to the RFID database processing system, and then the process converts the information into a semantic Web language. Data transmitted on the standardized semantic Web base are translated by a smart browser and displayed on the screen. The use of a semantic Web language enables reasoning on meaningful relations and this, in turn, makes it easy to expand the functions by adding modules.

• International Journal of Internet, Broadcasting and Communication
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• v.11 no.2
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• pp.31-42
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• 2019

As smartphone H/W performance and mobile communication service have been enhanced, large-capacity 3D modeling files are available in smartphones. Common formats of 3D modeling files include STL (STereoLithography), OBJ (Wavefront file format specification), FBX (Filmbox), and glTF (open GL Transmission Format). Each format has different characteristics depending on the configuration and functions, and formats that are supported are varied depending on the applications. Large-size files are commonly used. The 4th generation mobile communication network secures loading of 3D modeling files and transmission of large-size geometric files in order to provide augmented reality services via smartphones. This paper explains the concepts and characteristics of major 3D file formats such as OBJ, FBX, and glTF. In addition, it compares their performance in a wired web with that in the 4th generation mobile communication network. The loading time and packet transmission in each 3D format are also measured by means of different mobile web browsers (Google Chrome and MS Edge). The experiment result shows that glTF demonstrated the most efficient performance while the loading time of OBJ was relatively excessive. Findings of this study can be utilized in selecting specific 3D file formats for rendering time reduction depending on the mobile web environments.

• IEIE Transactions on Smart Processing and Computing
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• v.2 no.2
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• pp.86-96
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• 2013

VP8, an open web media video format, has recently attractedmuch attention, particularly from major web browser companies, as a video codec for HTML5 on internet due to its good coding efficiency and royalty-free policy. Compared to other video compression schemes such as H.264/AVC, it has several distinctive coding tools that help to ensure good coding efficiency and low decoding complexity. In this paper, we investigate its coding techniques and analyze its rate-distortion (R-D) coding performance as compared to that of H.264/AVC.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06a
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• pp.328-331
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• 2011

최근 소프트웨어 결함이나 보안 취약점을 분석하고 발견하기 위해 퍼징(fuzzing)에 대한 연구가 활발하다. 퍼징은 무작위 입력 데이터를 대상 프로그램에 주입하여 그 결과를 관찰하면서 결함을 탐지하는 테스팅 방법이다. 본 논문에서는 웹 브라우저를 대상으로 기존의 '변이 기반의 덤 퍼징'(Mutation based Dumb Fuzzing) 방식과 '생성 기반의 지능적 퍼징'(Generation based Smart Fuzzing) 방식을 비교 분석하였다. 그리고 실험을 통해 기존의 퍼징 도구들의 성능을 측정하고 이를 바탕으로 브라우저 퍼징에서' 변이 기반의 덤 퍼징' 이 웹 브라우저의 결함 및 취약점 탐지에 더 효율적이라는 것을 보인다. 그리고 웹 브라우저를 대상으로 '변이 기반의 덤 퍼징' 방식을 적용할 때, 코드 실행 커버리지를 고려한 다수의 입력 템플릿 확보와 다수의 템플릿들에 대한 구성 요소들을 랜덤하게 섞어서 변이를 하는 효과적인 브라우저 퍼징 전략을 제안한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.475-477
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• 2017

In this paper Wifi robot car working as web sever on wifi network was implemented using NodeMCU ESP-12E board and its operation was verified using web browser of smart phone and PC. Current research result can be applicable to Wifi home automation applications with ESP-12E board.

• Proceedings of the KIEE Conference
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• 2001.07d
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• pp.2717-2719
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• 2001

In this paper The embedded Web or Hypertext Transfer Protocol (HTTP) server allows embedded systems developers to take advantage of a network infrastructure that is already in place to enhance their designs and provide new features for their customers. It has gained acceptance as a protocol for gleaning information from a wide variety of sources and its open extensible nature makes it suitable for the full range of networked embedded systems. Many companies are already building Web browser support into smart-phones and network computers, but the other end of the connection also has great potential for many more classes of embedded system. Once fitted with an embedded Web server, a device can report its status to any client on the network and can even be reprogrammed remotely to perform new tasks.

• International journal of advanced smart convergence
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• v.7 no.4
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• pp.101-107
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• 2018

Visitors to a Web site leave access logs documenting their activity in the site. These access logs provide a valuable source of information about the visitors' access patterns in the Web site. In addition to the pages that the user visited, it is generally possible to discover the geographical locations of the visitors. Web servers also records other information such as the entry into the site, the URL, the used operating system and the browser, etc. There are several Web mining techniques to extract useful information from such information and visualization of a Web log is one of those techniques. This paper presents a technique as well as a case a study of visualizing a Web log.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1411-1413
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• 2011

기존의 인터넷 검색 편리성을 제공하는 브라우저들은 사용자의 요구에 따라 수동적으로 움직이게 된다. 또한 RSS 와 같은 고급 검색 요구 조건을 만족시키고자 하는 노력에 비하여 사용자의 요구에 따라 능동적으로 움직이기에는 어려움이 존재한다. 이에 본 연구에서는 RSS와 같은 능동적인 정보 검색 및 제공이 가능하고, 표준 HTML2.0을 따르는 효과적인 웹 브라우저인 EasyWeb을 설계 및 구현하고자 한다. 본 논문에서 제안한 EasyWeb 브라우저는 기존의 브라우저들과 달리 표준 규격에 따라 구성하도록 HTML과 XML parsing이 가능하다. 또한 사용자의 요구에 능동적으로 정보를 수집하여 제공할 수 있다. 본 논문에서 제안한 EasyWeb의 구현 결과를 살펴보면 향후 웹 브라우저의 나아갈 방향을 모색할 수 있을 것으로 생각된다.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.289-294
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• 2012

In this paper, we take advantage of the characteristics of mobile smartphones can be serviced without the constraints of time and space, and Study was developed by a variety of mobile services were done in a traditional offline can be implemented in real-time Case Management Community. To this end, in addition to general PC/laptop, smart mobile until the configuration interface provide the same environment for HTML5 Web Switching and Optimal Network on the same device-specific browser Size to the implementation of the next generation of Web standards, HTML5-based integrated case management Web and Mobile Web. Hybrid App Development OS supports various kinds of smart devices based on SenchaTouch Mobile Framework between the server real-time synchronization and message through the implementation of the Push Notification function, administrators and guardians real-time two-way communication between the subjects is a real-time implementation of the system was implemented Case Management Community.