• Journal of the Korea Institute of Information Security & Cryptology
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• v.31 no.1
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• pp.11-17
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• 2021

Due to the recent development of the Internet of Things (IoT) and the increase in services using drones, research on IoD is actively underway. Drones have limited computational power and storage size, and when communicating between drones, data is exchanged after proper authentication between entities. Drones must be secure from traceability because they contain sensitive information such as location and travel path. In this paper, we point out a fatal security vulnerability that can be caused by the use of pseudonyms and certificates in existing IoD research and propose a solution.

• Convergence Security Journal
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• v.17 no.5
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• pp.3-10
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• 2017

Standard Protocol Optimized for Resource-Constrained IoT Environment Constrained Application Protocol (CoAP) supports web-based communication between a sensor node in the IoT environment and a client on the Internet. The CoAP is a Request / Response model that responds to the client's CoAP Request message by responding with a CoAP Response message from the server. CoAP recommends the use of CoAP-DTLS for message protection. However, validation of the use of DTLS in the IoT environment is underway. We analyze CoAP and DTLS security mode, evaluate performance of secure channel creation time, security channel creation step time, and RAM / ROM consumption through Cooja simulator and evaluate the possibility of real environment application.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.501-505
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• 2016

Recently, the frequency of dealing important information regarding financial services like paying through smart device or internet banking on smart device has been increasing. Also, with the development of smart device execution environment towards open software environment, it became easier for users to download and use random application software, and its security aspect appears to be weakening. This study inspects features of hardware-based smart device security technology. Furthermore, this study proposes a realization method in MTM hardware-based secure smart device execution environment for an application software that runs in smart devices. While existing MTM provides the root of trust function only for the mobile device, the MTM-based mobile security environment technology proposed in this paper can provide numerous security functions that application program needs in mobile device. The further researches on IoT devices that are compatible with security hardware, gateway security technology and methods that secure reliability and security applicable to varied IoT devices by advancing security hardware are the next plan to proceed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.807-808
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• 2016

With the recent rise in nuclear families and single-member families, there is a need for the kind of home management unaffected by neither space nor time. Moreover, electronic devices in and around the home need to be managed efficiently and prevented from overheating, and there is an increasing risk of fire, theft, and leak of personal data with these devices, which is leading to an increase in the economic costs. Accordingly, there is a growing need for an efficient and secure smart home management system. This paper proposes a home management system that uses smart devices. This system has addressed the shortcomings of a conventional Internet-based home network. Furthermore, it communicates with IoT-enabled devices and features intelligent information home appliances that are isolated from personally identifiable information and which are secure against advanced persistent threats, a type of cyber-attack.

• International Journal of Computer Science & Network Security
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• v.21 no.8
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• pp.229-237
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• 2021

Cloud of things (CoTs) is a newer idea which combines cloud computing (CC) with the Internet of Things (IoT). IoT capable of comprehensively producing data, and cloud computing can be presented pathways that allow for the progression towards specific destinations. Integrating these technologies leads to the formation of a separate element referred to as the Cloud of Things (CoTs). It helps implement ideas that make businesses more efficient. This technology is useful for monitoring a device or a machine and managing or connecting them. Since there are a substantial amount of machines that can run the IoT, there is now more data available from the IoT that would have to be stored on a local basis for a provisional period, and this is impossible. CoTs is used to help manage and analyze data to additionally create usable information by permitting and applying the development of advanced technology. However, combining these elements has a few drawbacks in terms of how secure the process is. This investigation aims to recent study literature from the past 3 years that talk about how secure the technology is in terms of protecting by authentication, reliability, availability, confidentiality, and access control. Additionally, this investigation includes a discussion regarding some kinds of potential attacks when using Cloud of Things. It will also cover what the various authors recommend and conclude with as well as how the situation can be approached to prevent an attack.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.1283-1286
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• 2017

사물인터넷(Internet of Things; IoT)이 발달하면서 FIWARE, oneM2M, AllJoyn 등의 많은 IoT 플랫폼이 개발되고 관련 표준들도 제정되고 있다. 이런 환경에서는 각 IoT 플랫폼의 통신 프로토콜, 보안정책 등이 상이하기 때문에 데이터가 연동되기 어렵고, 보안 인터워킹을 수행하는 것은 더욱 어려운 문제다. oneM2M과 FIWARE의 경우, Fi-Proxy 인터워킹 어댑터를 이용하여 상호간 인터워킹이 시연된 사례가 있지만 그 과정에서 보안이 고려되지는 않았다. oneM2M은 아직 보안 컴포넌트가 별도로 존재하지 않기 때문에, 본 논문에서는 oneM2M-FIWARE 보안 인터워킹 시나리오에 적용할 수 있는 OAuth 2.0 기반 oneM2M 보안 컴포넌트를 구현하고, FIWARE 보안 아키텍처를 분석 및 구현하여 시사점을 도출한다. 또한 본 논문은 oneM2M과 FIWARE 간의 보안 인터워킹 아키텍처를 제안하고, 이를 기반으로 향후 여러 도메인에 활용될 수 있는 구조를 가진 LED 예제를 개발한다.

• Information and Communications Magazine
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• v.32 no.7
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• pp.27-33
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• 2015

오늘날 우리 사회는 정보통신기술의 발전으로 다양한 가능성들을 갖게 되었다. 그 중 다양한 사물들에 센싱 기술을 부여하고 네트워크에 연결시켜, 해당 사물들이 처리하는 데이터들을 손쉽게 활용 및 관리 하고자 하는 기술인 사물 인터넷(Internet of Things)이 활발하게 거론되고 있다. 현재 사물 인터넷은 스마트 홈, 헬스 케어 등의 형태로 우리 생활에 깊게 들어왔고, 그곳에서 개인 정보와 같은 매우 민감한 데이터를 다루기 때문에, 이러한 기기 및 데이터들에 대한 보안은 매우 중요하다. 하지만 현재의 사물 인터넷은 보안이 충분히 고려되지 않은 상태이다. 본고에서는 현재 보안 기술을 적용함에 있어서 사물 인터넷 환경이 어떠한 문제점을 가지고 있는지 알아보고, 이러한 문제점들을 해결하고 안전한 IoT 환경을 구축하기 위해 본고에서 제안하는 SDN/NFV 기술을 적용한 IoT 게이트웨이 디자인을 알아본다.

• Convergence Security Journal
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• v.15 no.4
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• pp.35-41
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• 2015

Internet of Things has a wide range of vulnerabilities are exposed to information security threats. However, this does not deal with the basic solution, the vaccine does not secure encryption for the data transmission. The encryption and authentication message transmitted from one node to the construction of the secure wireless sensor networks is required. In order to satisfy the constraint, and security requirements of the sensor network, lightweight encryption and authentication technologies, the light key management technology for the sensor environment it is required. Mandatory sensor network security technology, privacy protection technology subchannel attack prevention, and technology. In order to establish a secure wireless sensor networks encrypt messages sent between the nodes and it is important to authenticate. Lightweight it shall apply the intrusion detection mechanism functions to securely detect the presence of the node on the network. From the sensor node is not involved will determine the authenticity of the terminal authentication technologies, there is a need for a system. Network security technology in an Internet environment objects is a technique for enhancing the security of communication channel between the devices and the sensor to be the center.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.10
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• pp.1958-1968
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• 2015

Things intelligence communication (M2M or IoT) service activation and global company of OneM2M-related business on aggressive investing and has led to the acceleration of change in the ICT market. But a variety of hacking security technology because of the possibility of secure communication (data exposure, theft, modification, deletion, etc.) has been issued as an important requirement. In this paper, we propose a mutual authentication protocol for secure communications chameleon hash based on the M2M environment. The results of performance analysis efficiency is encryption and decryption an average of 0.7%, calculated rate showed good results as compared to the target algorithm, equivalent to a 3%(Average 0.003 seconds) difference, mutual authentication and encryption region by using the key update advantage of ECC(Elliptic Curve Cryptography)based Chameleon hash function is signed of the operational efficiency, using a collision message verifiable properties demonstrated strong security of the communication section.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.11
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• pp.46-52
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• 2017

Along with the expansion of areas in which ICT and Internet of Things (IoT) devices are utilized, open source software has recently expanded its scope of applications to include computers, smart phones, and IoT devices. Hence, as the scope of open source software applications has varied, there have been increasing malicious attempts to attack the weaknesses of open source software. In order to address this issue, various secure coding programs have been developed. Nevertheless, numerous vulnerabilities are still left unhandled. This paper provides some methods to handle newly raised weaknesses based on the analysis of histories and patterns of previous open source vulnerabilities. Through this study, we have designed a weaknesses analysis system that utilizes weakness histories and pattern learning, and we tested the performance of the system by implementing a prototype model. For five vulnerability categories, the average vulnerability detection time was shortened by about 1.61 sec, and the average detection accuracy was improved by 44%. This paper can provide help for researchers studying the areas of weaknesses analysis and for developers utilizing secure coding for weaknesses analysis.