• Title/Summary/Keyword: The Internet of Things( IoT)

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Secure Multicast using Proxy Re-Encryption in an IoT Environment

  • Kim, SuHyun;Hwang, YongWoon;Seo, JungTaek
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.12 no.2
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    • pp.946-959
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    • 2018
  • Recently interest in Internet of Things(IoT) has attracted significant attention at national level. IoT can create new services as a technology to exchange data through connections among a huge number of objects around the user. Data communication between objects provides not only information collected in the surrounding environment but also various personalized information. IoT services which provide these various types of data are exposed to numerous security vulnerabilities. If data is maliciously collected and used by an attacker in an IoT environment that deals with various data, security threats are greater than those in existing network environments. Therefore, security of all data exchanged in the IoT environment is essential. However, lightweight terminal devices used in the IoT environment are not suitable for applying the existing encryption algorithm. In addition, IoT networks consisting of many sensors require group communication. Therefore, this paper proposes a secure multicast scheme using the proxy re-encryption method based on Vehicular ad-hoc networks(VANET) environment. The proposed method is suitable for a large-scale dynamic IoT network environment using unreliable servers.

A Study of Data Communication Between the Web and the IoT Platform in WoT (WoT 환경에서 웹과 IoT 플랫폼 사이의 데이터 통신 연구)

  • Phyo, Gyung-soo;Park, Jin-tae;Moon, Il-young
    • Journal of Advanced Navigation Technology
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    • v.20 no.4
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    • pp.374-379
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    • 2016
  • Recently, IoT(Internet of Things) to connect the objects and people has attracted attention. And it is rapidly developing. IoT is to develop, experts are predicting that the device is connected to the Internet to break through around 100 billion within 10 years. However, the current IoT companies are having a difficult state to the other each other IoT platform for interaction between data silos effects. These silos effects will limit the IoT grow to a larger market. Thus, the IoT service supplier shall develop an open platform for interaction IoT data between each IoT platform. These web technologies for current open IoT platform has emerged. If developers are using familiar, easy-to-learn Web technologies, developers can take advantage of a variety of services for the collected data, and found the IoT devices can be bypassed if there is a problem on the network. In this paper, we investigate the data communications technology that can be used in WoT environment to overcome these silos effects. As a result, the polling method that can simply send the IoT information the fastest.

A Framework for Provisioning Internet of Things Context-aware Services (사물인터넷 기반의 상황인지 서비스를 위한 프레임워크 설계)

  • Cheun, Du Wan
    • Journal of Service Research and Studies
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    • v.2 no.2
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    • pp.91-98
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    • 2012
  • The emergence of new types of embedded computing devices and developments in wireless networking are broadening the domain of computing from the work place and home office to other facets of everyday life. This trend is expected to lead to a proliferation of Internet of Things (IoT) environments, in which inexpensive and interconnected computing devices are capable of supporting users in a range of tasks. Context-aware computing is a key source to develop such smart services. However, there are many challenges to enable services to be smart; Heterogeneous Computing Environments, Resource Limitations, Large Amount of Data Produced, and Different Requirements for Context Interpretation. Because of these challenges, there are difficulties in providing smart service by utilizing IoT devices. Currently, many researchers are conducting researches on mobile-computing based smart service development and provisioning and network infrastructure for interconnected IoT devices. Still, there are some limitations on developing core technologies for IoT computing based smart service development. In order to remedy this situation, this thesis presents a reusable framework that provides unique and noble features which are required in developing advanced context-aware IoT applications.

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Design and Implementation of IoT Middleware Using Data Refinement Scheme based on IETF CoAP (IETF CoAP 기반의 데이터 정제 기법을 이용한 IoT 미들웨어 설계 및 구현)

  • Wang, Jian;SaKong, June;Kwak, Ho-Young;Kim, DoHyun
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.15 no.6
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    • pp.123-128
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    • 2015
  • Recently, a communication protocol for connectivity between various sensors and actuators is issue the key technology in IoT(Internet of Things). IETF(Internet Engineering Task Force) CoAP(Constrained Application Protocol) protocol supports the communication between things like sensors and actuator nodes in a limited environment. Smart-phone will work for the data processing of the sensors and the management of IoT nodes at the next generation communication environment. In this paper, we design the connection for smart-phone and IoT node based using IETF CoAP protocol, and implement the middleware with the proposed data refinement on smart-phone. The middleware detects and eliminates a error data and duplicated data using the proposed data refinement. The proposed data refinement scheme supports to transfer a reliability information in the constrained environment.

IoT Environment and Security Countermeasures in 4th Industrial Revolution (4차 산업혁명 시대의 사물인터넷 현황 및 보안 대응책)

  • Hong, Sunghyuck
    • Journal of Digital Convergence
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    • v.17 no.11
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    • pp.195-200
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    • 2019
  • The role of the Internet of Things in the Fourth Industrial Revolution is in the era of collecting data at the end and analyzing big data through technology to analyze the future or behavior. Therefore, due to the nature of the IoT, it is vulnerable to security and requires a lightweight security protocol. The spread of things Internet technology is changing our lives a lot. IT companies all over the world are already focusing on products and services based on things Internet, and they are going to the era of all things internet that can communicate not only with electronic devices but also with common objects. People, people, people and objects, things and things interact without limitation of time and space, collecting, analyzing and applying information. Life becomes more and more smart, but on the other hand, the possibility of leakage of personal information becomes greater. Therefore, this study proposed security threats that threaten the protection of personal information and countermeasures, and suggested countermeasures for building a secure IoT environment suitable for the Fourth Industrial Revolution.

Continuous Integration for Efficient IoT-Cloud Service Realization by Employing Application Performance Monitoring (효율적인 IoT-Cloud 서비스 실증을 위한 응용 성능 모니터링을 활용한 지속적인 통합)

  • Bae, Jeongju;Kim, Chorwon;Kim, JongWon
    • KIISE Transactions on Computing Practices
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    • v.23 no.2
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    • pp.85-96
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    • 2017
  • IoT-Cloud service, integration of Internet of Things (IoT) and Cloud, is becoming a critical model for realizing creative and futuristic application services. Since IoT machines have little computing capacity, it is effective to attaching public Cloud resources for realizing IoT-Cloud service. Furthermore, utilizing containers and adopting a microservice architecture for developing IoT-Cloud service are useful for effective realization. The quality of microservice based IoT-Cloud service is affected by service function chaining which inter-connects each functions. For example, an issue with some of the functions or a bottleneck of inter-connection can degrade the service quality. To ensure functionality of the entire service, various test procedures considering various service environments are required to improve the service continuously. Hence in this paper, we introduce experimental realization of continuous integration based on DevOps and employ application performance monitoring for Node.js based IoT-Cloud service. Then we discuss its effectiveness.

Design and Implementation of DNS Name Autoconfiguration for Internet of Things Devices (사물인터넷 디바이스를 위한 DNS 네임 자동설정의 설계 및 구현)

  • Lee, Sejun;Jeong, Jaehoon
    • Journal of KIISE
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    • v.42 no.11
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    • pp.1441-1451
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    • 2015
  • As one of the most spotlighted research areas, these days, the Internet of Things (IoT) aims to provide users with various services through many devices. Since there exist so many devices in IoT environments, it is inefficient to manually configure the domain name system (DNS) names of such devices. Thus, for IPv6-based IoT environments, this paper proposes a scheme called the DNS Name Autoconfiguration (DNSNA) that autoconfigures an IoT device's DNS name and manages it. In the procedure for generating and registering an IoT device's DNS name, the standard protocols of the Internet Engineering Task Force (IETF) are used. Since the proposed scheme resolves an IoT device's DNS name into an IPv6 address in unicast through a DNS server, it generates less traffic than multicast-based mDNS (Multicast DNS) which is a legacy DNS application for the DNS name service in the smart home. Thus, the proposed scheme is more appropriate in multi-hop IoT networks than mDNS. This paper explains the design of the proposed scheme and its service scenarios, such as smart home and smart road. It also explains the implementation and testing of the proposed scheme in the smart grid.

IoT 플랫폼 개발 동향 및 발전방향

  • Kim, Jae-Ho;Yun, Jae-Seok;Choe, Seong-Chan;Ryu, Min-U
    • Information and Communications Magazine
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    • v.30 no.8
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    • pp.29-39
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    • 2013
  • IoT기술은 Internet of Thing의 약자로서 국내에서는 사물인터넷 기술로 불리우고 있다. IoT 기술은 실 세계에 존재하는 사물 (Physical Things) 및 사이버 환경에 존재하는 사물(Virtual Things) 들이 인터넷을 통하여 서로 연결되고 이러한 물리공간과 가상공간의 사물들의 연동을 통하여 다양한 서비스를 제공할 수 있는 미래 인터넷 인프라 기술이다. 본고에서는 현재 개발완료 또는 개발 중인 국내외 IoT 기술에 대하여 소개하고 각 기술의 특징에 대하여 알아본다. 또한 IoT 기술의 발전을 위하여 IoT 생태계의 중요성을 제시하고 이를 통한 IoT 플랫폼의 발전 방향에 대하여 논의 한다.

A study on the Application of PB/MC-CDMA for IoT Services in Small Cell Environment (IoT 서비스를 위한 스몰셀 환경에서 PB/MC-CDMA 적용 방안에 대한 연구)

  • Lee, Kyu-Jin
    • Journal of Convergence Society for SMB
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    • v.6 no.3
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    • pp.21-27
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    • 2016
  • In this paper, we introduce the PB/MC-CDMA (Partial Block/Multi-Carrier-Code Division Multiple Access) system to mitigate inter-cell interference (ICI) and enhance user capacity in the small cell environment. In 5G mobile communications, the number of devices connected to the network is expected to increase exponentially with the expansion of the IoT (Internet of Things) services. In addition, each device is expected to be required by the various data rates by their content types. In LTE/LTE-A, there are some limitations that large scale connectivity and supporting various data rates. Therefore, we introduce a PB/MC-CDMA physical layer system which is suitable for the small cell environment, and evaluate the performance in the multi cell environment which is affected by ICI. Through computer simulation results, we demonstrate the effectiveness of PB/MC-CDMA for the small cell environment.

Authentication Method for Safe Internet of Things Environments (안전한 사물 인터넷 환경을 위한 인증 방식)

  • Lee, Young-Seok
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.8 no.1
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    • pp.51-58
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    • 2015
  • Internet of Thing is a collection of various technical components, and the interworking among heterogeneous devices, networks, applications is expected to be accelerated through the openness of IoT platform. For this reason, many technical and administrative security threats will occur in IoT environments. In this paper, authentication methods of recent researches are analyzed for safe IoT services, and new mutual authentication protocol is proposed to provide more secure communication. The proposed protocol prevents an impersonation as malicious gateway or illegal device providing mutual authentication between gateway and IoT device. The performance analysis and evaluation of proposed authentication protocol are performed.