• Journal of Digital Convergence
• /
• v.17 no.10
• /
• pp.13-21
• /
• 2019

The restricted network or the unbalanced distribution of spectrum is causing the problems of lack of spectrum resources and deterioration of the service quality. In addition, the existing centralized radio sharing method has not been a fundamental solution for radio sharing and is inefficient in terms of cost, convenience, and security. In this paper, we propose a blockchain-based spectrum sharing as a low-cost, trustworthy, high-efficiency platform that can distribute and share spectrum resources, and propose policies to realize this. In the spectrum sharing platform, spectrum information about Wi-Fi AP and LTE mobile hotspot is registered in the blockchain, and spectrum sharers and users can conclude peer-to-peer spectrum sharing contract quickly and efficiently through smart contract. The pay for the shared spectrum resources and reward for spectrum quality management open platform ecosystem to activate the circulation-sharing and it can provide a convenient and efficient public wireless infrastructure.

• Journal of information and communication convergence engineering
• /
• v.21 no.1
• /
• pp.32-44
• /
• 2023

Information security breach is a major risk in e-learning. This study presents the potential information security disruptions in Learning Management Systems (LMS) from the perspective of users. We use the Technology Acceptance Model approach as a user perception model of information security, and the results of a questionnaire comprising 44 questions for instructors and students across Indonesia to verify the model. The results of the data analysis and model testing reveals that lecturers and students perceive the level of information security in the LMS differently. In general, the information security aspects of LMSs affect the perceptions of trust of student users, whereas such a correlation is not found among lecturers. In addition, lecturers perceive information security aspect on Moodle is and Google Classroom differently. Based on this finding, we recommend that institutions make more intense efforts to increase awareness of information security and to run different information security programs.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
• /
• 2002.11a
• /
• pp.495-498
• /
• 2002

The need for network protection, accounting and resource management in foreign administrative domain requires appropriate security services. In this paper, we propose an access control protocol to support the authentication between mobile node and visiting subnet. Our hybrid way of approach aims to reduce computational overhead and minimize the use of network bandwidth. We also propose non-certificate based public-key cryptography to provide non-repudiation, which does not require CRL retrieval and certificate validation.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2018.05a
• /
• pp.584-587
• /
• 2018

사물인터넷(Internet of Things; IoT)이 차세대 성장동력으로 부상하면서 선진국을 비롯한 많은 단체들이 IoT 육성을 위한 전략을 세우고 있다. 특히 플랫폼(platform)은 IoT의 중요요소기술로 여겨지면서 IoT 플랫폼 보안에 대한 관심은 나날이 높아지고 있다. 현재 국내 IoT 플랫폼('ARTIK', 'Thingplug', 'IoTMakers')들은 oneM2M과 같은 국제표준기술을 기반으로 플랫폼의 다양한 기능을 제공해줌으로서 사용자가 IoT 생태계(ecosystem)에 보다 쉽게 접근할 수 있도록 독려하고 있다. 이렇듯 IoT 플랫폼 기술이 빠른 속도로 성장하고 있는 반면, 국내 IoT 플랫폼들의 보안에 대한 분석이나 연구사례가 거의 없다. 따라서 본 논문에서는 현재 상용화하고 있는 국내 IoT 플랫폼들을 대상으로 보안분석을 수행하고 보안이슈와 보완방안을 시사한다.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.17 no.4
• /
• pp.77-83
• /
• 2021

As Open Source Software(OSS) recently invigorates, many companies actively use the OSSes in their business software. With such OSS invigoration, our web application is developed in order to provide the safety in using the OSSes, and update the information on the new vulnerabilities and the patches at all times by crawling the web pages of the relevant OSS home pages and the managing organizations of the vulnerabilities. By providing the updated information, our application helps the OSS users and developers to be aware of such security issues, and gives them to work in the safer environment from security risks. In addition, our application can be used as a security platform to greatly contribute to preventing potential security incidents not only for companies but also for individual developers.

• The Journal of Economics, Marketing and Management
• /
• v.10 no.6
• /
• pp.17-26
• /
• 2022

Purpose: This study analyzes advanced cases of overseas smart cities and examines policy implications related to the creation of smart cities in Korea. Research design, data, and methodology: Analysis standards were established through the analysis of best practices. Analysis criteria include Technology, Privacy, Security, and Governance. Results: In terms of technology, U-City construction experience and communication infrastructure are strengths. Korea's ICT technology is inferior to major countries. On the other hand, mobile communication, IoT, Internet, and public data are at the highest level. The privacy section created six principles: legality, purpose limitation, transparency, safety, control, and accountability. Security issues enable urban crime, disaster and catastrophe prediction and security through the establishment of an integrated platform. Governance issues are handled by the Smart Special Committee, which serves as policy advisory to the central government for legal system, standardization, and external cooperation in the district. Conclusions: Private technology improvement and participation are necessary for privacy and urban security. Citizens should participate in smart city governance.

• International journal of advanced smart convergence
• /
• v.10 no.2
• /
• pp.10-14
• /
• 2021

Today people adopt various contents from their mobile devices which lead to numerous platforms. As technology of 5G, IOT, and smart phone develops, the number of people who create, edit, collect, and share their own videos, photos, and articles continues to increase. As more contents are shared online, the numbers of data being stolen continue to increase too. To prevent these cases, an authentication method is needed to encrypt the content and prove it as its own content. In the report, we propose a few methods to secure various misused content with secondary security. A unique private key is designed when people create new contents through sending photos or videos to platforms. The primary security is to encrypt the "Private Key" with a public key algorithm, making its data-specific "Timeset" that doesn't allow third-party users to enter. For the secondary security, we propose to use Message Authentication Codes(MACs) to certify that we have produced the content.

• Electronics and Telecommunications Trends
• /
• v.37 no.1
• /
• pp.1-9
• /
• 2022

With the development of artificial intelligence, many studies have focused on evaluating abnormal situations by using various sensors, as industries try to automate some of the surveillance and security tasks traditionally performed by humans. In particular, mobile robots using multimodal sensors are being used for pilot operations aimed at helping security robots cope with various outdoor situations. Multiagent systems, which combine fixed and mobile systems, can provide more efficient coverage (than that provided by other systems), but network bottlenecks resulting from increased data processing and communication are encountered. In this report, we will examine recent trends in object recognition and abnormal-situation determination in various changing outdoor security robot environments, and describe an outdoor security robot platform that operates as a multiagent equipped with a multimodal sensor.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2002.05a
• /
• pp.477-480
• /
• 2002

Transparency of position that provide quick service regardless of physical position to users in distribution computing environment is getting into prominence and is developed in component form that many application softwares take advantage of distributed object technology. Because design object in distribution computing environment and OMG introduces OMA for embody, defined CORBA by standard of distributed object technology on OMA's abstract picture object model. Security service in CORBA platform is very important. Present object security service in distribution computing environment that refer standard of sorority and security models of distribution computing platform in CORBA in this treatise and follow in CORBA security service rules.

• Convergence Security Journal
• /
• v.17 no.5
• /
• pp.93-99
• /
• 2017

Recently IoT(Internet of Things) service industry has grown very rapidly. In this paper, we investigated the changes in IoT service industry as well as new direction of human life in future global society. Under these changing market conditions, competition has been also changed into global and ecological competition. But compared to the platform initiatives and ecological strategies of global companies, Korean companies' vision of building ecosystems is still unclear. In addition, there is a need of internetworking between mobile and IoT services. IoT security Protocol has weakness of leaking out information from Gateway which connected wire and wireless communication. As such, we investigate the structure of IoT and AI service ecosystem in order to gain strategic implications and insights for the security industry in this paper.