The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Hardware Interlocking Security System with Secure Key Update Mechanisms In IoT Environments

IoT 환경에서의 안전한 키 업데이트를 위한 하드웨어 연동 보안 시스템

  • Received : 2017.07.10
  • Accepted : 2017.08.01
  • Published : 2017.08.31
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Abstract

Recent advances in Internet of Things (IoT) encourage us to use IoT devices in daily living areas. However, as IoT devices are being ubiquitously used, concerns onsecurity and privacy of IoT devices are getting grown. Key management is an important and fundamental task to provide security services. For better security, we should restrict reusing a same key in sequential authentication sessions, but it is difficult to manually update and memorize keys. In this paper, we propose a hardware security module(HSM) for automated key management in IoT devices. Our HSM is attached to an IoT device and communicates with the device. It provides an automated, secure key update process without any user intervention. The secure keys provided by our HSM can be used in the user and device authentications for any internet services.

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.

Keywords

References

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