• The KIPS Transactions:PartD
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• v.13D no.5 s.108
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• pp.731-740
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• 2006

WIPI is developed by KWISF(Korea Wireless Internet Standardization Forum) and a wireless internet standard platform adopted by TTA. It needs the certification Process for standard specification in order to confirm interoperability. The WIPI is composed of the HAL, the Runtime Engine, and APIs(WIPI-C, WIPI-Java). nl applications are implemented through WIPI APIs that can be finished by themselves or provided essential functions from runtime engine or HAL. Therefore it needs to certify where the problems occur when errors occurred in a application. In this paper we propose the PCT that certifies a WIPI platform's functionality and APIs and the HCT that certifies HAL APIs. Because the PCT reports the final certification results for the platform it is impossible to know where the problems occur when it fails to certify platform. So, it needs to certify the HAL regardless of platform certification.

• Journal of the Korean Society of Systems Engineering
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• v.15 no.2
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• pp.66-71
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• 2019

In digital pathology, an electronic system in the biomedical domain storage of the files is a big constrain and because all the analysis and annotation takes place at every user-end manually, it becomes even harder to manage the data that is being shared inside an enterprise. Therefore, we need such a storage system which is not only big enough to store all the data but also manage it and making communication of that data much easier without losing its true from. A virtual server setup is one of those techniques which can solve this issue. We set a main server which is the main storage for all the virtual machines(that are being used at user-end) and that main server is controlled through a hypervisor so that if we want to make changes in storage overall or the main server in itself, it could be reached remotely from anywhere by just using the server's IP address. The server in our case includes XML-RPC based API which are transmitted between computers using HTTP protocol. JAVA API connects to HTTP/HTTPS protocol through JAVA Runtime Environment and exists on top of other SDK web services for the productivity boost of the running application. To manage the server easily, we use Tkinter library to develop the GUI and pmw magawidgets library which is also utilized through Tkinter. For managing, monitoring and performing operations on virtual machines, we use Python binding to XML-RPC based API. After all these settings, we approach to make the system user friendly by making GUI of the main server. Using that GUI, user can perform administrative functions like restart, suspend or resume a virtual machine. They can also logon to the slave host of the pool in case of emergency and if needed, they can also filter virtual machine by the host. Network monitoring can be performed on multiple virtual machines at same time in order to detect any loss of network connectivity.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10a
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• pp.190-192
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• 1998

이동에이전트를 위한 이동객체(mobile agent)와 이를 지원해주는 이동객체서버(mobile object system)를 설계하고 이러한 요소들을 제어하고 관리하는 이동객체 시스템(mobile object system)을 Java로 구현한다. 또, 시스템 내의 이동객체를 비롯한 모든 객체들간의 객체 요청(object request)을 유연하게 중계하고 이들간의 통신을 담당하는 ORB (Object Request Broker)를 TCP/IC상에서 Java 로 구현하고 이동 에이젼트 시스템을 쉽게 구측할수 있는 앱스트랙션(abstraction)과 API를 제공한다. 이 시스템은 네이밍 서비스(naning service)와 푸쉬형 이벤트 서비스(push-event service)등을 기본적으로 지원한다.

• IEMEK Journal of Embedded Systems and Applications
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• v.8 no.3
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• pp.137-143
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• 2013

This paper describes an implementation of face detection technology for a real-time application on the Android platform. Java class of Face-Detection for detection of human face is provided by the Android API. However, this function is not suitable to apply for the real-time applications due to inadequate detection speed and accuracy. In this paper, the AdaBoost based classification method which utilizes Local Binary Pattern (LBP) histogram is employed for face detection. The face detection module has been developed by C/C++ language for high-speed image processing, and this module is included to the Android platform using the Java Native Interface (JNI). The experiments were carried out in the Java-based environment and JNI-based environment. The experimental results have shown that the performance of JNI-based is faster than Java-based method and our system is well enough to apply for real-time applications.

• Proceedings of the Korea Society for Simulation Conference
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• 2003.11a
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• pp.59-65
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• 2003

In order to reduce the cost of software maintenance including software modification, we suggest the object oriented program with checking the version of application program using the Java language and the technique of executing the downloaded application program via network using the application manager. In order to change the traditional scheduler to the application manager we have adopted the Xlet concept in the nuclear fields using the network. In usual Xlet means a Java application that runs on the digital television receiver. The Java TV Application Program Interface(API) defines an application model called the Xlet application lifecycle. Java applications that use this lifecycle model are called Xlets. The Xlet application lifecycle is compatible with the existing application environment and virtual machine technology. The Xlet application lifecycle model defines the dialog(protocol) between an Xlet and its environment

• Proceedings of the Korean Information Science Society Conference
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• 2008.06a
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• pp.367-368
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• 2008

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2003.12a
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• pp.452-457
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• 2003

자바카드 API는 스마트 카드와 같은 작은 메모리를 가진 임베디드 장치에서 실행환경을 최적화하기 위해 구성되었다. 자바카드 API의 목적은 한정된 메모리를 가진 스마트카드 기반의 프로그램을 개발할 때 많은 이점을 제공한다. 그러나 공개키 암호 알고리즘 구현에 필요한 연산들인 모듈러 연산, 최대공약수 계산, 그리고 소수 판정과 생성 등의 연산을 지원하지 않는다. 본 논문에서는 이러한 기능을 제공하는 자바카드 기반 BigInteger 클래스의 설계 및 구현에 목적을 둔다.

• Journal of Information Technology Services
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• v.5 no.3
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• pp.165-172
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• 2006

In this paper, we designed a new type of X-internet framework by using Flash component and server service API and analyzed its performance. Proposed X-internet framework uses Flash MX Professional 2004, Java, and software which opened middleware and database. Since proposed framework use the server service API that we developed in this paper and Flash player, this framework does not need server module. Proposed framework enables to obtain design with dynamic user interface compare to Web application and enables to reduce development time. In analytical results, it has been shown that proposed x-internet framework have efficient characteristics such as network traffic, low development cost and dynamic user interface implementation. Since proposed X-internet framework can operate in environment of current developer friendly, it is useful for development of various new application programs and we confirm it through Flash web mail implementation by using proposed x-internet framework.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.6 no.2
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• pp.766-783
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• 2012

Recently, many malicious users have attacked web browsers using JavaScript code that can execute dynamic actions within the browsers. By forcing the browser to execute malicious JavaScript code, the attackers can steal personal information stored in the system, allow malware program downloads in the client's system, and so on. In order to reduce damage, malicious web pages must be located prior to general users accessing the infected pages. In this paper, a novel framework (JsSandbox) that can monitor and analyze the behavior of malicious JavaScript code using internal function hooking (IFH) is proposed. IFH is defined as the hooking of all functions in the modules using the debug information and extracting the parameter values. The use of IFH enables the monitoring of functions that API hooking cannot. JsSandbox was implemented based on a debugger engine, and some features were applied to detect and analyze malicious JavaScript code: detection of obfuscation, deobfuscation of the obfuscated string, detection of URLs related to redirection, and detection of exploit codes. Then, the proposed framework was analyzed for specific features, and the results demonstrate that JsSandbox can be applied to the analysis of the behavior of malicious web pages.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.4 no.4
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• pp.767-773
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• 2000

As computer systems and communication technologies develop rapidly, CSCW(Computer Supported Collaborative Work) system appears nowadays, through which it is available to work on virtual space without any restriction of time and place. Most of CWCS systems depend on a special network and groupware. The systems of graphics and CAD are not so many because they are specified by hardware and application software. In this paper, we propose a web-based collaborative CAD system, which can be jointly worked on Internet WWW being independent from any platforms. It can create and modify 3D objects easily using VRML and Java 3D API, and it can send, print, and store them. The interactive work for designing objects can be also carried out through chatting with each other. This system is executed in the environment of Client/server architecture. Clients connect to the CAD sewer through Java applet on WWW. The server is implemented by Java application, and it consists of three components : connection manager which controls the contact to users, work manager which keeps viewing in concurrency and provides virtual work space sharing with others, and solid modeler which creates 3D object.