• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2024년도 춘계학술발표대회
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• pp.235-238
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• 2024

This paper investigates the integration of ARIA cryptography within hardware secure modules to bolster IoT security. We present a comparative analysis of two prominent IoT communication protocols, MQTT and LwM2M, augmented with ARIA cryptography. The study evaluates their performance, security, and scalability in practical IoT applications. Our experimental setup comprises FPGA-enabled hardware secure modules interfaced with Raspberry Pi acting as an MQTT and LwM2M client. We utilize the Mosquitto MQTT server and an LwM2M server deployed on AWS IoT. Through rigorous experimentation, we measure various performance metrics, including latency, throughput, and resource utilization. Additionally, security aspects are scrutinized, assessing the resilience of each protocol against common IoT security threats. Our findings highlight the efficacy of ARIA cryptography in bolstering IoT security and reveal insights into the comparative strengths and weaknesses of MQTT and LwM2M protocols. These results contribute to the development of robust and secure IoT systems, paving the way for future research in this domain.

• 대한임베디드공학회논문지
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• 제10권4호
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• pp.199-206
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• 2015

In this paper, we present the implementation of a secure OTP(One Time Password) generator for IoT(Internet of Things) devices. Basically, MTM(Mobile Trusted Module) is used and expanded considering secure IoT services. We combine the MTM architecture with a new hardware-based OTP generation engine. The new architecture is more secure, offering not only the security of devices but also that of the OTP service. We have implemented and verified the MTM-based OTP generator on a real mobile platform embedded with the MTM chip. The proposed method can be used as a solution for enhancing security of IoT devices and services.

• 한국전자통신학회논문지
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• 제12권4호
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• pp.671-678
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• 2017

최근 사물인터넷(IoT)의 발전에 따라 IoT장비가 실생활에 적극적으로 사용되고 있다. 하지만 IoT장비의 사용이 늘어남에 따라서, IoT 보안 사고에 의한 사생활 침해의 문제 또한 늘어나고 있다. 키 관리는 보안 서비스에서 기본적이면서도 중요한 작업이다. 보안성 강화를 위해 인증 과정에서 동일한 키의 재사용은 제한되어야 하지만 다양한 키들을 기억하며 수동으로 업데이트하는 일은 어려운 일이다. 본 논문에서는 자동화된 키 관리 하드웨어 보안 모듈인 HSM을 제안한다. 제안하는 HSM은 IoT장치에 부착하여 장비와 직접 통신하며, 사용자의 개입 없이 안전하고 자동화된 키관리 과정을 제공한다. 제안된 기법을 통해서 제공되는 키는 인터넷 서비스에서의 사용자와 기기의 인증에 사용될 수 있다.

• 정보보호학회논문지
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• 제27권3호
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• pp.607-615
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• 2017

최근 다양한 기능을 가진 IoT 제품이 개발되고 있으며, 사물과 정보기술의 결합을 통해 기존에는 미처 상상하지 못했던 편리한 서비스가 등장하고 있다. 안전한 IoT 환경을 위해서는 제품의 보안성이 필수적으로 고려되어야 하나, 기존 IoT 제품에서는 보안 취약성이 발견되는 등 다양한 문제점이 발생하고 있다. IoT 제품의 보안성 확보를 위해서는 기술적 대응방안과 함께 정책적인 대응방안도 필요하다. 그러나 현행의 IoT 제품에 관련된 법제도는 IoT 환경에서의 안전을 보장하기에는 한계점이 존재한다. 본 논문에서는 이러한 현행 IoT 관련 법제도의 한계점을 분석하고, 이에 대한 개선방안을 제시하고자 한다.

• 디지털산업정보학회논문지
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• 제17권4호
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• pp.43-52
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• 2021

IoT applications are quickly spread in many fields. Blockchain methods(BC), defined as a distributed sharing mechanism, offer excellent support for IoT evolution. The BC provides a secure way for communication between IoT devices. However, the IoT environments are threatened by hacker attacks and malicious intrusions. The IoT applications security are faced with three challenges: intrusions and attacks detection, secure communication, and compressed storage information. This paper proposed a system based on double-blockchain to improve the communication transactions' safety and enhance the information compression method for the stored data. Information security is enhanced by using an Ellipse Curve Cryptography(ECC) considered in a double-blockchain case. The data compression is ensured by the Compressed Sensing(CS) method. The conducted experimentation reveals that the proposed method is more accurate in security and storage performance than previous related works.

• International Journal of Computer Science & Network Security
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• 제24권4호
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• pp.11-25
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• 2024

The proliferation of IoT devices has presented an unprecedented challenge in managing device identities securely and efficiently. In this paper, we introduce an innovative Hybrid Blockchain-Based Approach for IoT Identity Management that prioritizes both security and efficiency. Our hybrid solution, strategically combines the advantages of direct and indirect connections, yielding exceptional performance. This approach delivers reduced latency, optimized network utilization, and energy efficiency by leveraging local cluster interactions for routine tasks while resorting to indirect blockchain connections for critical processes. This paper presents a comprehensive solution to the complex challenges associated with IoT identity management. Our Hybrid Blockchain-Based Approach sets a new benchmark for secure and efficient identity management within IoT ecosystems, arising from the synergy between direct and indirect connections. This serves as a foundational framework for future endeavors, including optimization strategies, scalability enhancements, and the integration of advanced encryption methodologies. In conclusion, this paper underscores the importance of tailored strategies in shaping the future of IoT identity management through innovative blockchain integration.

• 한국콘텐츠학회논문지
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• 제18권4호
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• pp.164-177
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• 2018

IoT 디바이스와 관련한 시장이 확대됨에 따라 이와 관련한 보안 침해 사고의 규모가 상당할 것으로 예측된다. 이에 따라 국내 정보보호와 관련한 법제 정비를 위한 움직임 또한 활발해지고 있으며, 강화된 정보통신망 법이 시행되었다. IoT 관련 침해 사고는 재정적 피해뿐만 아니라 인명 사고로도 이어질 수 있기 때문에, IoT 디바이스 보안에 큰 관심이 집중되고 있다. 본 논문에서는 IoT 디바이스가 갖춰야 할 필수 보안기능을 법제적 관점과 기술적 관점을 통해 시사점을 제시하고, 이와 관련한 기술들을 분석한다. 이는 Start-up 개발자나 IoT 디바이스 설계자에게 참고자료로 활용될 수 있다.

• International Journal of Computer Science & Network Security
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• 제21권6호
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• pp.119-126
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• 2021

The Internet of Things (IoT) applications are quickly spread in many fields. Blockchain methods (BC), defined as a distributed sharing mechanism, offer excellent support for IoT evolution. The BC provides a secure way for communication between IoT devices. However, the IoT environments are threatened by hacker attacks and malicious intrusions. The IoT applications security are faced with three challenges: intrusions and attacks detection, secure communication, and compressed storage information. This paper proposed a system based on double-blockchain to improve the communication transactions' safety and enhance the information compression method for the stored data. Information security is enhanced by using an Ellipse Curve Cryptography (ECC) considered in a double-blockchain case. The data compression is ensured by the Compressed Sensing (CS) method. The conducted experimentation reveals that the proposed method is more accurate in security and storage performance than previous related works.

• International Journal of Computer Science & Network Security
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• 제23권7호
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• pp.149-154
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• 2023

Internet of Things (IoT) is now spreading everywhere. It's the technology of every person's need so we can't step back from IoT but we can secure it as it is spreading quickly so it has greater chances of danger and being misused. There is an urgent need to make IoT devices secure from getting cracked or hacked. A lot of methods had tried and still trying to mitigate IoT security issues. In this paper Blockchain is going to be the solution of most of the IoT issues or problems. We have discussed or highlighted security issues with centralized IoT and then provided solution of such security challenges through the use of blockchain because is based on a decentralized technology that is hard to modify or update.

• International Journal of Computer Science & Network Security
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• 제24권8호
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• pp.174-178
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• 2024

IoT is collection of different "things" which are associated with open web. As all the things are connected to the Internet, it offers convenience to end users for accessing the resources from "Any Where, Any Time" throughout the globe. At the same time, open nature of IoT provides a fertile ground to an intruder for launching different security related threats. If we can no apply proper security safeguards to the IoT System, then it will be not useful to society. Authentication, Encryption, Trust Management and Secure Routing are different domains to offer security in IoT system. Among them, Authentication is very much important security service as it validates device identity before granting access to system services/ resources. Existing IoT Authentication algorithms are fail to verify device identity in unambiguous way. They are vulnerable to different security threats such as Key Stolen threat, MITM threat and Location Spoofing threat. So, it is a demand of time to design an efficient and secure Multi-factor IoT algorithm which can offer better security and validate device identity in unambiguous way.