• 한국소프트웨어감정평가학회 논문지
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• 제16권2호
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• pp.77-85
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• 2020

본 논문에서는 스마트 계약의 핵심 기술로 사용되는 분산원장 기술의 운영과 분산원장 기술의 구성요소에 대하여 연구하고 분산원장의 요소기술을 차세대 만물네트워크에 적용하기 위한 해결책으로 현재 ISO/IEC JTC1 SC6에서 표준화가 진행 중인 만물네트워크 프로토콜의 사물유저 소셜 그룹 관리 기능을 이용한 분산원장 기술의 프로토콜을 제시하였다. 만물네트워크의 사물유저 소셜 그룹 관리 기능은 안정적인 프로토콜 기능과 데이터 전송 관리를 제공하고 있으며 멤버 디스커버리기능, 데이터 전송 통로 관리기능 등의 그룹 관리 기능을 제공하고 있다. 분산원장 요소 기술을 상호 합의로 적용할 수 있는 서비스를 제공할 수 있어서 분산원장 노드들의 그룹 관리 기능에 도움이 될 것으로 예상하며 표준화가 진행되고 있는 ISO/IEC JTC1 SC6의 미래 네트워크 기능과 구조에 적극 반영하고자 한다.

• Journal of Multimedia Information System
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• 제9권1호
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• pp.11-20
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• 2022

In this paper, we have recently created self-driving cars and self-parking systems in human-friendly cars that can provide high safety and high convenience functions by recognizing the internal and external situations of automobiles in real time by incorporating next-generation electronics, information communication, and function control technologies. And with the development of connected cars, the ITS (Intelligent Transportation Systems) market is expected to grow rapidly. Intelligent Transportation System (ITS) is an intelligent transportation system that incorporates technologies such as electronics, information, communication, and control into the transportation system, and aims to implement a next-generation transportation system suitable for the information society. By combining the technologies of connected cars and Internet of Things with software features and operating systems, future cars will serve as a service platform to connect the surrounding infrastructure on their own. This study creates a research methodology based on the Enhanced Security Model in Self-Driving Cars model. As for the types of attacks, Availability Attack, Man in the Middle Attack, Imperial Password Use, and Use Inclusive Access Control attack defense methodology are used. Along with the commercialization of 5G, various service models using advanced technologies such as autonomous vehicles, traffic information sharing systems using IoT, and AI-based mobility services are also appearing, and the growth of smart transportation is accelerating. Therefore, research was conducted to defend against hacking based on vulnerabilities of smart cars based on artificial intelligence blockchain.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권5호
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• pp.1484-1502
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• 2023

The medical sector actively changes and implements innovative features in response to technical development and revolutions. Many of the most crucial elements in IoT-connected health services are safeguarding critical patient records from prospective attackers. As a result, BlockChain (BC) is gaining traction in the business sector owing to its large implementations. As a result, BC can efficiently handle everyday life activities as a distributed and decentralized technology. Compared to other industries, the medical sector is one of the most prominent areas where the BC network might be valuable. It generates a wide range of possibilities and probabilities in existing medical institutions. So, throughout this study, we address BC technology's widespread application and influence in modern medical systems, focusing on the critical requirements for such systems, such as trustworthiness, security, and safety. Furthermore, we built the shared ledger for blockchain-based healthcare providers for patient information, contractual between several other parties. The study's findings demonstrate the usefulness of BC technology in IoHT for keeping patient health data. The BDSA-IoHT eliminates 2.01 seconds of service delay and 1.9 seconds of processing time, enhancing efficiency by nearly 30%.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 추계학술대회
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• pp.354-356
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• 2022

프로필은 본인을 나타내는 가장 기본적인 수단이며, 그 자신을 대표한다. 프로필을 가장 많이 활용하는 SNS, 채팅 앱에서는 프로필을 이용하여 자신의 경험, 기분, 생각 등을 표현한다. 그러나 보이스피싱, 사칭 범죄 등에서 프로필과 같은 사진을 도용하여 사칭한 뒤 피해자를 속여 범죄를 일으킨다. 본 논문에서는 사칭 범죄를 방지하기 위해 원본 구별이 가능한 NFT를 이용하여 원본의 진위를 판단한다. 프로필 사진의 원본을 NFT로 민팅하여 블록체인 네트워크에 등록하고 원본 파일은 off-chain인 IPFS에 저장한다. 이를 활용하면 프로필 사진의 진위를 쉽게 판별할 수 있기 때문에 사칭 범죄 예방에 효과적일 것으로 기대된다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2023년도 추계학술발표대회
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• pp.115-118
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• 2023

IoT 장치들은 연구, 의료, 금융, 민생 분야 등에 지원하고 있으며 취약한 보안 메커니즘으로 인하여 IoT 네트워크의 개인정보 안전성이 중요해지고 있다. 안전한 다자간 계산은 서로 믿지 않는 참여자라도 데이터 수요자에게 원본 데이터를 누설하지 않는 범위 안에서 다자간 연합 계산 능력을 제공한다. 상업 네트워크나 산업 네트워크에서는 대량의 데이터는 다른 플랫폼들과 통신하기 때문에 기업이나 개인의 개인정보 데이터가 통신 과정에서 도청될 경우 데이터 보유자에게 막대한 경제적이나 잠재적인 손실이 발생한다. 본 논문에서 데이터 통신 과정을 계층별로 정의하여 블록체인에 기반의 안전한 다자간 계산 아키텍처를 제안한다. 제안하는 이키텍처에서 블록체인을 사용함으로써 데이터의 유효성 및 검증 가능성을 보장한다. 인증된 데이터로 안전한 다자간 계산 수행하기 때문에 통신과정의 보안성 및 기밀성도 확보한다. 암호학 및 블록체인 기술의 지속적 발전 및 활성화에 따라 제안하는 아키텍처가 지속적으로 개선할 잠재력이 있다.

• 무역학회지
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• 제46권2호
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• pp.263-280
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• 2021

With the advent of the era of the 4th Industrial Revolution, various support policies and programs are being introduced as the promotion of startups related to the 4th industry is promoted as a core policy of the government. Based on major technologies such as Artificial Intelligence(AI), Big Data, Internet of Things(IoT), Blockchain, and Automation leading the 4th industrial revolution, logistics and distribution companies are expanding the range of markets and services provided. The purpose of this study is to examine the current status of startups in the logistics field based on major technologies of the 4th Industrial Revolution, which are rapidly growing at home and abroad, and suggest implications for revitalizing logistics startups through a policy demand survey. As a result of the study, in order to foster domestic logistics startups, we propose policy support for integration of logistics startups, integrated management of information, provision of physical space, network platform, and practical education and mentoring.

• International journal of advanced smart convergence
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• 제13권2호
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• pp.119-129
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• 2024

We look at Web 3.0 business model canvas (BMC) of metaverse gaming platform, The Sandbox (TS). As results, the decentralized, blockchain-based platform, TS benefits its creators and players by providing true ownership, tradability of decentralized assets, and interoperability. First, in terms of the governance and ownership, The SAND functions a governance token allowing holders to participate in decision and SAND owners can vote themselves or delegate voting rights to other players of their choice. Second, in terms of decentralized assets and activities, TS offers three products as assets like Vox Edit as a 3D tool for voxel ASSETS, Marketplace as NFT market, and Game Maker as a visual scripting toolbox. The ASSETS made in Vox Edit, sold on the Marketplace, can be also utilized with Game Maker. Third, in terms of the network technology, in-game items are no longer be confined to a narrow ecosystem. The ASSETS on the InterPlanetary File System (IPFS) are not changed without the owner's permission. LAND and SAND are supported on Polygon, so that users interact with their tokens in a single place. Last, in terms of the token economics, users can acquire in-game assets, upload these assets to the marketplace, use for paying transaction fees, and use these as governance token for supporting the foundation.

• 유통과학연구
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• 제22권6호
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• pp.107-114
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• 2024

Purpose: The current research investigates historical and future trends of tourist distribution channels in the tourism services business. The research examines historical patterns, current shifts, and new technologies in electricity distribution to offer insight into the distribution dynamics and advice for companies and regulators. Research design, data and methodology: The research in this case specifically employed the PRISMA approach when it comes to the data collection and research methodology. (PRISMA). The process is specifically made up of four steps, such as (1) Identification of Relevant Studies, (2) Screening and Selection Procedures, (3) Data Synthesis and Analysis, and (4) Reporting of Findings. Results: The fast-changing technology offers all opportunities to innovate the sector of tourism services. These upcoming technologies are not just reconstructing the way customers interact and operate but they are also creating room for development. Besides "the utilization of new technologies such as artificial intelligence, augmented reality, virtual reality, and blockchain, the current state of tourism distribution channels also implies some other possible consequences. Conclusions: These research results show that we should not be reluctant about adopting new technologies, we should expand direct booking systems, promote eco-friendly tourism, and use data analytics in order to provide personalized experiences.

• 한국콘텐츠학회논문지
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• 제20권3호
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• pp.515-526
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• 2020

디지털 헬스케어는 의료 분야와 IT가 결합한 분야이며 소셜미디어에서도 디지털 헬스케어에 대한 다양한 정보가 제공되고 있다. 본 연구는 소셜미디어를 통해서 헬스케어와 관련된 자료들을 수집하고 분석하여 디지털 헬스케어의 연구 동향을 파악하고자 한다. 본 연구를 위해서 Naver와 Daum의 뉴스와 블로그에서 2008년 1월에서 2019년 6월까지 자료를 수집하였으며 기간별로 빈도가 높은 주요한 키워드들을 추출하여 워드클라우드로 시각화하였고 주요 키워드 간의 관계를 분석하기 위해서 네트워크 분석을 하였다. 2008년에서 2011년 까지는 의료 분야 및 IT가 결합한 연구, 2012년에서 2015년까지는 의료 분야 및 IT를 기반으로 다양한 융합연구, 2016년에서 2019년 6월까지는 빅데이터, 블록체인, 인공지능 등의 4차 산업혁명 기술들을 적용한 융합연구가 활발히 진행되었다.

• International Journal of Computer Science & Network Security
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• 제24권4호
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• pp.60-66
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• 2024

Host's data during transmission. Data tempering results in loss of host's sensitive information, which includes number of VM, storage availability, and other information. In the distributed cloud environment, each server (computing server (CS)) configured with Local Resource Monitors (LRMs) which runs independently and performs Virtual Machine (VM) migrations to nearby servers. Approaches like predictive VM migration [21] [22] by each server considering nearby server's CPU usage, roatative decision making capacity [21] among the servers in distributed cloud environment has been proposed. This approaches usage underlying server's computing power for predicting own server's future resource utilization and nearby server's resource usage computation. It results in running VM and its running application to remain in waiting state for computing power. In order to reduce this, a decentralized decision making hybrid model for VM migration need to be proposed where servers in decentralized cloud receives, future resource usage by analytical computing system and takes decision for migrating VM to its neighbor servers. Host's in the decentralized cloud shares, their detail with peer servers after fixed interval, this results in chance to tempering messages that would be exchanged in between HC and CH. At the same time, it reduces chance of over utilization of peer servers, caused due to compromised host. This paper discusses, an roatative decisive (RD) approach for VM migration among peer computing servers (CS) in decentralized cloud environment, preserving confidentiality and integrity of the host's data. Experimental result shows that, the proposed predictive VM migration approach reduces extra VM migration caused due over utilization of identified servers and reduces number of active servers in greater extent, and ensures confidentiality and integrity of peer host's data.