• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권6호
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• pp.2148-2167
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• 2021

The proliferation of the Internet of Things (IoT) technologies and applications, especially the rapid rise in the use of mobile devices, from individuals to organizations, has led to the fundamental role of secure wireless networks in all aspects of services that presented with many opportunities and challenges. To ensure the CIA (confidentiality, integrity and accessibility) security model of the networks security and high efficiency of performance results in various resource-constrained applications and environments of the IoT platform, DDO-(data-driven operation) based constructions have been introduced as a primitive design that meet the demand of high speed encryption systems. Among of them, the TMN-family ciphers which were proposed by Tuan P.M., Do Thi B., etc., in 2016, are entirely suitable approaches for various communication applications of wireless mobile networks (WMNs) and advanced wireless sensor networks (WSNs) with high flexibility, applicability and mobility shown in two different algorithm selections, TMN64 and TMN128. The two ciphers provide strong security against known cryptanalysis, such as linear attacks and differential attacks. In this study, we demonstrate new probability results on the security of the two TMN construction versions - TMN64 and TMN128, by proposing efficient related-key recovery attacks. The high probability characteristics (DCs) are constructed under the related-key differential properties on a full number of function rounds of TMN64 and TMN128, as 10-rounds and 12-rounds, respectively. Hence, the amplified boomerang attacks can be applied to break these two ciphers with appropriate complexity of data and time consumptions. The work is expected to be extended and improved with the latest BCT technique for better cryptanalytic results in further research.

• 정보보호학회논문지
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• 제20권6호
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• pp.83-96
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• 2010

우리사회는 급격한 스마트폰 확산은 개인생활 뿐만 아니라 조직의 업무 환경을 바꾸고 있다. 특히 스마트폰은 애플리케이션을 누구나 개발하고 사용할 수 있는 특성으로 인해 타산업과의 융합이 촉진되는 등 사회의 디지털 패러다임을 변화시키고 있다. 정부도 스마트폰 환경에 맞는 대국민서비스 향상과 국민과의 소통을 위해 '모바일 전자정부' 구축을 추진하고 있다. 하지만 스마트폰에 대한 보안위협이 급증하고 있어 이에 대한 대책을 마련하지 않으면 모바일 전자정부 활성화에 장애가 될 수 있다. 본 논문에서는 국가기관의 안전하고 효율적인 모바일 환경 구축을 위해 필요한 정보보호 방안과 이를 체계적으로 관리하기 위한 모바일 전자정부 정보보호관리체계(ISMS)를 제시하고자 한다.

• 한국안전학회지
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• 제36권2호
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• pp.58-67
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• 2021

Incident investigation is regarded as a means to improve safety performance. For the prevention of industrial accidents, measures such as providing safety education, enhancing management interest and participation, establishing a safety management system, and conducting inspection of the work site are necessary. In particular, accident investigation activities, which are an important element of safety management, help to prevent similar accidents, thereby minimizing damage and enhancing work safety. They are critical for understanding business-related incidents and the vulnerabilities and opportunities associated with them. Therefore, it is clear that accident investigation activities are important for accident prevention. The primary focus of many incident investigation processes is on identifying the cause of an event. While considerable research has been conducted on potential accident investigation tools there has been little research on including the views and experiences of practitioners in the accident investigation process. In this study, a questionnaire survey was conducted among safety managers in the domestic manufacturing/construction industry to understand the practice of accident investigation. The investigation pertained to companies' accident investigation systems, the competence of investigators, and the identification and recommendations of the cause of accidents. From the analysis results of accident investigations, investigators' competence, the difficulty level of investigations, and the root causes of accidents were identified from the viewpoint of the participants of the accident investigations. In particular, the development of standardized and simple accident investigation methods and their dissemination to companies were found to be necessary for activating the root cause of accidents. Based on this, it can be used as basic data for the development of root cause analysis investigation techniques that are easily applicable to organizations.

• 디지털산업정보학회논문지
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• 제17권1호
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• pp.57-73
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• 2021

The purpose of this study is to analyze the diffusion period and productivity of smartwork in an organization. Firms are increasingly interested in smartwork for non contact work and working from home because of the corona 19. The smartwork is a new technology that changes face-to-face work in an organization. It helps the work of individuals and organizations regardless of time and place. The theoretical background describes the complexity, system thinking, diffusion theory, smart work, organizational resistance, and productivity. This study analyzes the diffusion period and productivity of smart work through business simulation techniques. A simulation study progresses four stages. There are problem definition, hypothesis establishment and causal loop diagram, model construction and verification, and policy evaluation. The simulation models contain an individual's resistance variables organizational investment and leadership variables related to the operation of smartwork. The organizational investment variables include organizational culture, legal system, implement systems and technology investment. The individual resistance variables include cognitive, attitude, structure and technological resistance. The leadership includes leadership interest variables and performance linkage variables. The simulation executed the changes of a people number adopting smart work and the organizational productivity monthly. As a result of the simulation, many organization members have accepted the smart work innovation after 20 months. The organizational productivity through smart work showed very high value after 16 months. In scenario analysis, the individuals' awareness and attitude resistance showed very important variables to productivity and a personal change of smart work adoption. Meanwhile, The organizational investment showed that the high driving-force increased not productivity and the low driving-force showed decreased low productivity. Also, leadership variables showed a powerful driver for changing smart work productivity. The implication of the study has suggested extending complexity, diffusion theory and organization resistance theory based on simulation methods.

• 한국콘텐츠학회논문지
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• 제22권10호
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• pp.460-474
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• 2022

본 연구는 고용의 주체인 기업과 기관의 운영자가 인식하는 정년연장에 관한 인식을 탐색하고자 하였다. 면접을 통해 수집된 자료를 질적 내용분석을 통해 분석한 결과 제조업과 건설 현장 중심의 기업은 외국인 근로자보다 고령자를 선호하였고 사회서비스 기관의 운영자들은 건강하고 능력이 있는 고령자들은 계속 일할 수 있어야 한다는 의견을 제시하였다. 그러나 기업의 사정을 고려하지 않은 채 일률적으로 정년을 연장하는 것에 반대하는 의견도 다수 제시되었다. 높아진 호봉 대비 일에 대한 열정이 감소하여 정년제도가 없으면 조직의 활력을 저하하고 인건비 부담을 가중할 것에 대한 우려를 드러냈다. 이에 대한 대안으로 회사와의 합의에 따른 계약 연장 및 촉탁직의 형태를 취한다면 정년 이후에도 고용이 연장될 수 있다는 의견과 함께 고령자의 연봉을 조정하여 기업의 부담을 줄이고 좀 더 고용의 탄력성이 보장되면 기업에서 고용유지뿐만 아니라 고령자 고용 창출도 좀 더 용이하게 이루어질 것이라는 의견도 제시되었다.

• 한국컴퓨터정보학회논문지
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• 제14권8호
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• pp.127-136
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• 2009

고객의 소리(VOC: Voice of the Customer)는 기업 및 다양한 조직들에서 고객의 요구사항들을 획득하는 과정을 기술하기 위해서 경영 및 정보기술에서 사용되는 용어이다. 최근, 기업들은 고객 만족을 위하여 VOC를 처리하고, 저장/분석하여, 문제의 재발 방지 및 개선 활동, 제품 및 서비스의 기획 및 개발에 활용하려는 노력을 하고 있다. 지금까지, 이러한 VOC 관리 시스템은 호텔업 및 보험/금융업 등의 서비스 산업들을 위주로 도입되어 왔다. 본 논문에서는 대규모 제조업을 대상으로 다양한 채널로 들어오는 VOC의 통합 관리 방안을 제시하고, 제시된 방안을 기반으로 한 통합 VOC 관리 시스템의 구축 사례를 기술한다. 이러한 통합 VOC 관리시스템을 구축함으로써, VOC를 기업의 중요한 지식 자산으로 저장하고 활용할 수 있게 되었다.

• 한국식생활문화학회지
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• 제24권5호
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• pp.467-477
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• 2009

This study was conducted to investigate and analyze food related and space related elements of popular Vietnamese restaurants in Hong Kong to identify restaurant images related to food, to examine how Vietnamese traditions are applied to such restaurants, and ultimately, to get their implications for us. Luxury Vietnamese restaurants in Hong Kong tended to be located in major office buildings and famous shopping malls in the downtown area; therefore, they were highly accessible to foreigners. In addition, most Vietnamese restaurants were quite formal in size or atmosphere. The food-related elements of the luxury restaurants reproduced traditional menus, but the table setting and service generally adopted a formal Western style setting. The presentation of foods was also creative and contemporary, to suit international customers' tastes. Regarding the spatial elements, restaurants serving traditional menus had interiors influenced by the French colonial period, while those serving contemporarily adapted menus had interiors with simple contemporary images emphasized by Vietnamese traditional decorations. These characteristics allowed foreigners from diverse countries to access the restaurants without a sense of rejection. Casual restaurants were primarily exposed to many people on busy roadsides, but they tended to be inferior in terms of size and quality. Apart from size and price level, food-related elements failed to reflect Vietnamese unique traditional characteristics. The outward appearance consisted of basic construction materials (glass, chassis, and bamboo) instead of those representing Vietnamese architecture. Additionally, the interior of the casual restaurants contained traditional elements or objects more frequently than luxury restaurants, but they looked rather disorderly and lacked harmony. Overall, the image of casual restaurants was degraded by the use of cheap and low quality finishing materials and furniture. The results of this study may be useful for organizations promoting the Branding of Korea or businesspeople and designers promoting the globalization of Korean foods.

• 융합보안논문지
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• 제24권1호
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• pp.21-26
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• 2024

이전의 네트워크 환경에서의 보안모델은 신뢰를 기반으로 하는 Perimeter모델을 사용하여 일단 신뢰된 사용자에게 대한 리소스 접근통제가 적절하게 이루어지지 못하는 취약점이 존재해 왔다. Zero Trust는 내부 데이터에 액세스하는 사용자와 장치가 어느 것도 신뢰할 수 있는 것이 없다고 가정하는 것을 절대적 원칙으로 한다. Zero Trust 원칙을 적용하면 조직의 공격 표면을 줄이는 데 매우 성공적이며, 또한 Zero Trust를 이용하면 세분화를 통해 침입을 하나의 작은 영역으로 제한하여 공격이 발생했을 때 피해를 최소화하고 할 수 있다는 평가를 받고 있다. ZTNA는 조직에서 Zero Trust 보안을 구현할 수 있도록 하는 주요 기술로서 소프트웨어정의경계(SDP)와 유사하게, ZTNA는 대부분의 인프라와 서비스를 숨겨서 장치와 필요한 리소스 간에 일대일로 암호화된 연결을 설정한다, 본 연구에서는 ZTNA 아키텍처의 원칙이 되는 기능과 요구사항을 검토하고, ZTNA 솔루션의 구축과 운영에 따른 보안요구사항과 검토사항에 대해 연구한다.

• International Journal of Computer Science & Network Security
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• 제23권12호
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• pp.137-144
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• 2023

The relevance of the research topic lies in the necessity to use social networks as innovative tools of marketing communications. A wide audience and the ability to segment the market for a specific consumer determine the construction of a corporate strategy, which will be based on using the social networking approach. The spread of the global coronavirus pandemic has led to the rapid development of remote communication channels between the company and the customer. The issue of using marketing tools in social networks acquires the most urgent importance in the modern world of the introduction and implementation of the company's marketing strategies. The purpose of the academic paper is to study the use of social networks as features of implementing the marketing campaign. Social networks are the result of the development of digital technologies and the processes of creating an information society involved in the digital space. The objectives of the research are to analyse the opportunity of using social networks as a tool for marketing communications and their implementation at the level of its widespread use by enterprises and establishments. It is significant to create an advertising campaign by defining the target audience and outlining the key aspects, on which the company is focused. The research methodology consists in determining the theoretical and methodological approaches to the essence of introducing social networks and their practical importance in the implementation of marketing activities of companies. The obtained results can significantly improve the quality of functioning of modern enterprises and organizations that plan to master a new market segment or gain competitive advantages in the existing one. The academic paper examines the essence of social networks as a tool of marketing communications. The key principles of the development of digital social platforms were revealed. The quality of implementing the advertising campaign in the social network was studied, and further prospects for the development of using social networks as a component of the marketing strategy were outlined. Therefore, the academic paper analyses the problems of using social networks as a marketing tool.

• 한국재난정보학회 논문집
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• 제20권1호
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• pp.138-146
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• 2024

연구목적: 본 연구는 대설 상황 발생시 신속하고 효율적인 도로 제설을 위해 제설 차량과 장비 등에 정보통신기술과 스마트 모빌리티 기술을 활용한 사례들을 찾아보고, 활용방안을 모색하는 것을 목적으로 한다. 연구방법: 국내 및 해외 제설작업 방법에 대한 사례를 조사하고 신 기술을 접목한 제설운영방법을 제시한다. 연구결과: 우리나라 제설장비 운영은 GPS와 CCTV, 도로교통 정보시스템을 활용한 방법이 대부분이며 해외의 경우 도로기상 정보시스템과 도로제설모니터링 시스템을 활용한다. 향후 스마트모빌리티인 자율주행 제설차량을 활용한 제설기술이 개발 될 것을 기대한다. 결론: 본 연구의 결과는 지자체 및 관련 기관의 제설 장비와 제설 차량 활용 정책에 기여할 수 있다.