• Asia pacific journal of information systems
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• v.19 no.4
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• pp.1-28
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• 2009

Banking industries have continuously innovated through technology-enhanced products and services. Many studies have recognized the importance of the Internet in banking industries, arguing that it has been widely adopted. Many studies published on the Internet banking in specific countries are mostly related with such issues as internet banking adoption and acceptance, security and risks of online banking system, and interface design. Several studies have been done to examine the differences and similarities between other banking channels and the Internet banking. However, to the best of our knowledge, only a limited number of studies has examined the differences and similarities between two specific countries in order to create a new customer satisfaction model. In this research, we studied the internet banking satisfaction model by comparing two countries: South Korea and Indonesia. We conducted an empirical study based on the data collected in both two countries. In this research, we found that countries which have adopted electric banking services, particularly between a country with high ICT adoption and a country with low ICT adoption, show different satisfaction trends. Based on the study results, herein we provide discussion, managerial, and practical implications.

• Journal of Korea Society of Industrial Information Systems
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• v.7 no.4
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• pp.100-105
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• 2002

This study evaluates the application sum providing(ASP) approach based on the perceptions of Koreas small and medium corporations, especially in the manufacturing industry. As considering the costs and risks of system implementation and maintenance, ASP would be a favorable alternative. Based on the survey of 25 cases, we found that as long as the level of perception on ASP is concerned, 80 percent of firms responded no or a little idea about the ASP service. Moreover the acceptance possibility of ASP service in the near future was less than 10 patent, and the primary reasons were found as follows: (1) lack of confidence regarding on the effect, (2) apprehension of data security, (3) issue of handling the existing employees, and (4) possibility of fee structure change after the implementation and stabilization. The guidelines to increase the recognition and successful implementation of ASP service in Korea are proposed.

• Annual Conference of KIPS
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• 2014.04a
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• pp.368-371
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• 2014

최근 디지털계측제어시스템은 사이버위협에 매우 취약하여 사이버공격에 의해 발전소 안전에 부정적인 영향을 받을 수 있는 실정이다. 따라서 디지털계측제어시스템에 대해 주기적인 사이버보안 위험 평가가 필요하다. 이에 따라 본 논문에서는 테스트베드 구축을 통해 특정 시점에서의 사이버 위협의 침해 가능성 분석, 또는 자체적으로 사이버보안성을 평가할 수 있는 방법에 대해 제안한다. 동 연구에서 제안하는 사이버보안 위험 평가는 자산분석, 테스트베드 구축, 취약점 분석, 위협평가, 위험도분석 및 평가 총 5단계로 구성되며 각 단계의 사이버보안 활동 수행을 통해 디지털계측제어계통의 사이버보안수준이 향상될 것으로 사료된다.

• Annual Conference of KIPS
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• 2019.10a
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• pp.459-460
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• 2019

최근 블록체인의 안정성이 화제가 됨에 따라 블록체인을 응용한 시스템 적용을 통한 기록의 무결성을 보장하는 기법이 대두되고 있다. 특히, 사용자간의 현금을 거래하는 거래 시스템은 타 시스템과 비교하여 거래 기록의 무결성이 더욱 강조된다. 본 논문에서는 거래 시스템의 무결성을 보장하기 위하여 블록체인을 적용한 여러 거래 시스템을 소개한다.

• Annual Conference of KIPS
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• 2019.10a
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• pp.5-7
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• 2019

열화상 시스템은 물체로부터 발산되는 적외선을 영상화하여 물체를 탐지하는 장점으로 인해 군사 분야는 물론 현재 민수 분야(자동차, Security 시스템)에 활용분야가 넓어지고 있다. 기존에는 대부분 FPGA 기반으로 열화상 열상 모듈을 개발하였지만 민수 분야에 다양한 요구사항 및 범용성에 유연한 대처가 힘든 실정이다. 따라서 다양한 요구사항과 범용성을 만족하기 위한 시스템의 필요성이 대두되었다. 본 논문에서는 상용 이미지 프로세서를 이용한 열화상 영상 처리 시스템을 제안한다. 제안된 시스템은 기존 FPGA 기반 시스템이 아닌 상용 이미지 프로세서를 사용함으로써 범용 영상 입·출력 인터페이스 및 각종 디바이스를 지원함에 따라 다양한 요구사항과 범용성을 만족한다. 따라서 시스템이 구축이 되면 뛰어난 접근성으로 인하여 시스템 추가/변경 시 기존의 시스템에 비해 개발 비용 및 기간을 단축할 수 있으며 그로 인하여 다양한 고객 요구사항 만족, 개발 비용 및 시간 단축, 제품 출시일 등 다양한 이점을 얻을 것으로 예상한다.

• Annual Conference of KIPS
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• 2012.04a
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• pp.738-741
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• 2012

한국정보통신기술협회(TTA)에서 표준 제안한 WBAN(Wireless Body Area Network)은 인체 내부 통신(in-body or implant)과, 인체 외부 통신(on-body)통신으로 구분하고 있다. 생체측정 정보 중 체온, 호흡, 맥박, 운동량, 심박의 부분적인 데이터 수집을 바탕으로 환자의 생체정보 데이터를 수합 후 데이터 프레임구조로 변환하여 스마트모바일 애플리케이션 환경에서 사용자가 모바일기기 화면에 정보를 표시 할 수 있다. 이렇게 표시된 정보들은 환자의 상태를 실시간으로 자신의 스마트모바일을 이용하여 확인할 수 있으며, 이러한 정보를 보호하고 의료기관에 전송하기 위한 방법으로 국제표준암호알고리즘인 HIGHT 알고리즘을 적용하여 생체정보 데이터의 부분 암호화 적용을 설계 하였다. 이를 통해 의료기관의 인증서버에 대한 부하 감소 및 환자의 생체정보의 보안 강화를 제시한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.13 no.7
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• pp.3756-3777
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• 2019

Recent internet development is helping malware researchers to generate malicious code variants through automated tools. Due to this reason, the number of malicious variants is increasing day by day. Consequently, the performance improvement in malware analysis is the critical requirement to stop the rapid expansion of malware. The existing research proved that the similarities among malware variants could be used for detection and family classification. In this paper, a Cross-Platform Malware Variant Classification System (CP-MVCS) proposed that converted malware binary into a grayscale image. Further, malicious features extracted from the grayscale image through Combined SIFT-GIST Malware (CSGM) description. Later, these features used to identify the relevant family of malware variant. CP-MVCS reduced computational time and improved classification accuracy by using CSGM feature description along machine learning classification. The experiment performed on four publically available datasets of Windows OS and Android OS. The experimental results showed that the computation time and malware classification accuracy of CP-MVCS was higher than traditional methods. The evaluation also showed that CP-MVCS was not only differentiated families of malware variants but also identified both malware and benign samples in mix fashion efficiently.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.13 no.6
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• pp.3144-3164
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• 2019

Face recognition systems have several potential applications, such as security and biometric access control. Ongoing research is focused to develop a robust face recognition algorithm that can mimic the human vision system. Face pose, non-uniform illuminations, and low-resolution are main factors that influence the performance of face recognition algorithms. This paper proposes a novel method to handle the aforementioned aspects. Proposed face recognition algorithm initially uses 68 points to locate a face in the input image and later partially uses the PCA to extract mean image. Meanwhile, the AdaBoost and the LDA are used to extract face features. In final stage, classic nearest centre classifier is used for face classification. Proposed method outperforms recent state-of-the-art face recognition algorithms by producing high recognition rate and yields much lower error rate for a very challenging situation, such as when only frontal ($0^{\circ}$) face sample is available in gallery and seven poses ($0^{\circ}$, ${\pm}30^{\circ}$, ${\pm}35^{\circ}$, and ${\pm}45^{\circ}$) as a probe on the LFW and the CMU Multi-PIE databases.

• Journal of the Korea Society of Computer and Information
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• v.24 no.1
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• pp.239-246
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• 2019

In this paper, we propose an effective software education donation model for the social care class. The types of software education for elementary, middle, and high school for the social care class are in the order of after school classes, club activities, creative experiences, and regular classes. In elementary school students, it is effective to precede visual programming education based on block coding and to conduct curriculum convergence with SW and HW at the beginning, and high school students are carrying out text programming education like Python. Software education for social care class The contribution activity model can be classified into five types such as geographically difficult area, multicultural family areas, orphanage, reformatory, and basic livelihood security recipient. In addition, the survey results show that the students' interest in software education and their satisfaction are all very high at 96%. Effective software education for the social care class In the donation model, the lecturers consist of responsible professors, lecturers, and assistant instructors. Software training for the social care class is effective on a year-by-year basis, so that students can feel authenticity and trust. Software education contents focus on visual programming and physical computing education in elementary or middle school, and text programming and physical computing education in high school. It is necessary to construct a software education donor matching system that helps efficient management of software education donations by efficiently matching schools (consumers: elementary, middle, high school) and software education donors(suppliers).

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.564-565
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• 2019

The Internet of Things technology is regarded as the next major technology that will be the driving force behind the fourth industrial revolution. The characteristics of entities for Internet of Things application are changing more actively and actively, requiring a more detailed approach, but existing access control technologies are designed around users, requiring access control techniques that maintain efficiency and security with less system load to apply complex and variable content. Therefore, research on role-based access controls that are appropriate for Internet of Things entities is essential. In this study, the relevant research for the study of access control of the Internet of Things entities and the RBAC and AC methods that can define the properties of the various entities within the Internet of Things.