• Proceedings of the Korean Society of Computer Information Conference
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• 2012.01a
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• pp.223-225
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• 2012

본 논문에서는 안드로이드 기반 스마트폰을 이용하여 유아 및 아동을 대상으로 하는 학습용 동화 앱의 구현 내용을 소개하였다. 이미 상용화 되어 있는 학습용 앱의 기능 외에 게임적 요소를 접목하여 학습의 효과와 흥미를 높일 수 있도록 하였다. 듣고 쓸 수 있는 학습용 전자 동화책으로 평가할 수 있다. 안드로이드 마켓에 배포하여 서비스를 할 수 있으며 본 연구의 과정은 앱 설계 관련 프로젝트의 수행이나 학습용 앱 개발의 학습 모형을 제시한 사례로 활용할 수 있다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.10a
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• pp.223-226
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• 2010

iPhone and Smart Phone domestic markets are activated with domestic coming out of galaxy S together and the users are increasing. It follows hereupon and with forensic techniques for the cellular phone relation criminal evidence collection of data of existing the mobile forensic engineering research is necessary in about Smart Phone where it has become new techniques and WiFi etc. Convergence. It respects Smart Phone OS star forensic technique and a tool research, iPhone Apple MAC OS X and it researches galaxy S Google Android from the present paper. Smart it uses SYN methods with Phone OS star forensic techniques and it researches in order mobile forensic description below it observes it sees and forensic application methods computer forensic methods and the tools and it researches forensic techniques. The present paper research as IT powerful country will contribute in Smart Phone forensic technical advances of Korea.

• Journal of Information Technology Services
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• v.12 no.2
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• pp.349-359
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• 2013

Recently, smart phones have been widely used in the world. Android phones especially provide existing mobile phone features as well as capability of running enterprise applications and web applications by using services. However, such a linkage has limitations to use Android phones as client devices, there is difficulties in providing services by utilizing characteristics of Android. To solve this problem, we need to invoke services by each other. Currently, the Android platform currently supports inter-process communication IPC. However, there is a limitation that Android services just can invoke remote calls. In this paper, we propose a framework to invoke Android services in java environments. For doing this, we propose methods to make services public and to invoke services in using remote calls and communication methods between java environments and Android.

• Convergence Security Journal
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• v.12 no.6
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• pp.61-67
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• 2012

Accordingly the number of smart-phone-based malicious codes is also increasing and their techniques for malicio us purpose are getting more clever and evolved. Among them, the malicious codes related to Android take the major portion and it can be estimated that they are based on open source so that the access to the system is easy. Intent is a technique to support the communication between application's components by transmitting message subjects in Android. Intent provides convenience to developers, but it can be utilized as security vulnerability that allows the developer with a malicious purpose to control the system as intended. The vulnerability of intent security is that personal information can be accessed using discretionally its proper function given to application and smart phone's functions can be maliciously controlled. This paper improves with the Intent security vulnerability caused by the smart phone users' discretional use of custom kernel. Lastly, it verifies the malicious behaviors in the process of installing an application and suggests a technique to watch the Intent security vulnerability in realtime after its installation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.05a
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• pp.171-172
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• 2012

최근 스마트폰의 보급률이 높아짐에 따라 생활 속에서 편리하게 쓸 수 있는 영상 서비스 어플리케이션들이 많이 개발되고 있다. 그에 따라 본 논문은 영상정보를 이용하면서 보안 및 기타 영상정보가 필요로 하는 환경에서 방문자에 대한 영상정보를 스마트폰(Smart-phone)으로 서비스하여 방문자를 인식하고 사용자 요구에 따라 필요한 메시지를 전송하거 원격지 디바이스를 원격에서 관리할 수 있는 원격 관리용 어플리케이션을 안드로이드(Android) 기반으로 개발하고자 한다. 이러한 어플리케이션의 구성은 블루투스(Bluetooth) 무선 통신모듈을 이용하거나 WiFi인 무선 TCP/IP 통신 기술을 이용하여 영상정보를 원격 서버에서 관리하도록 시스템을 구성하여 시스템의 활용 가능성을 제시하고자 한다.

• International journal of advanced smart convergence
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• v.2 no.1
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• pp.30-31
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• 2013

In the recent years, as smart phones popularized, the number of people who use IMS (instant messaging service) and SNS (social network service) rapidly has increased as the usage of SMS (short message service) relatively decreased. That is why this thesis suggests a contact control service based on Android. It contains an inducing function that calls acquaintances, which were given a score based on the level of familiarity from saved contacts and call logs. And it provides an overall ranking of call log in order to grasp frequently called people. This developed system was tested on Samsung Galaxy S2 and LG Optimus LTE / Android 2.2 which were the main smart phone models.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.11
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• pp.2419-2425
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• 2011

Presently SmartPhone users over the 15 million are expected to exceed 20 million people by the end of the year. The prevalence of SmartPhone has brought positive results with a new paradigm. But, It makes a result that SmartPhone user should concentrate on mobile device and interpersonal relationships are avoided. In this paper, we design and implement user network services that use a same application using located information based on android.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.535-538
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• 2011

Presently SmartPhone users over the 15 million are expected to exceed 20 million people by the end of the year. The prevalence of SmartPhone has brought positive results with a new paradigm. But, It makes a result that SmartPhone user should concentrate on mobile device and interpersonal relationships are avoided. In this paper, we design and implement user network services that use a same application using located infomation based on android.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.3
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• pp.49-55
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• 2012

Recently, with the rapid development of android-based smartphones, it is becomes a major security issue that the case of Android platform is an open platform. so it is easy to be a target of mobile virus penetration and hacking. Even there are a variety of security mechanisms to prevent the vulnerable points of the Android platform but the reason of most of the security mechanisms were designed at application-level that highly vulnerable to the attacks directly to the operating system or attacks using the disadvantages of an application's. It is necessary that the complementary of the android platform kernel blocks the kernel vulnerability and the application vulnerability. In this paper, we proposed a secure system using linux-based android kernel applied to LIDS(Linux Intrusion Detection and Defense System) and applied a smart phone with s5pc110 chip. As a result, the unauthorized alteration of the application was prevented with a proposed secure system.

• The Journal of the Korea Contents Association
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• v.10 no.12
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• pp.155-163
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• 2010

Due to the complex registration & downloading process of the native applications, and, software and their non-standardized APIs, mobile web application is now being an alternative software for smartphones. Hybrid web application, one of the types of mobile software, because develop and has reasonable performance by using the webkit engined in smartphones. It can be easily developed by using the exiting programming skill such as HTML, JavaScript and CSS. Additionally these programming techniques can be easily used in any smartphone regardless of its platforms. Most smartphones have a webkit engine or web rending engine for high performance and smooth display in web browser. Webkit is now equipped in iPhone and Android phone. In this paper, we try to find out by comparison that the various aspects of webkit APIs of iPhone & Android phone, such as screen font size, screen orientation, touch event, gesture event and their performance. We also evaluated which one is more convenient for developers when making web programs using webkit. As a result, we found out that webkit in iPhone has more excellent performance than Android.