Mutual Authentication and Key Agreement Scheme between Lightweight Devices in Internet of Things

Abstract

Confidentiality, mutual authentication and message origin authentication are required to make a secure service in IoT.Security protocols used in traditional IP Networks cannot be directly adopted to resource constrained devices in IoT.Under the respect, a IETF standard group proposes to use lightweight version of DTLS protocol for supporting security services in IoT environments. However, the protocol can not cover up all of very constrained devices. To solve the problem, we propose a scheme which tends to support mutual authentication and session key agreement between devices that contain only a single crypto primitive module such as hash function or cipher function because of resource constrained property. The proposed scheme enhances performance by pre-computing a session key and is able to defend various attacks.

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