Now days, with the remarkable fast development of micro processing devices and communicating technologies, networks, computers, mobile devices and Internet have become very unavoidable, as a result led to the emergence and prevalence of the Internet of Things (IoT). The mobility devices in IoT have entered in all areas of life ranging from a smart home down to a smart city. Due to big storage systems are extremely needed for securing data in flexible processing. Especially, the two or more entities wish to exchange data in IoT. In this paper, we propose secure and scalable scheme to keep data against attacks during a communication channel in IoT environment when IoT's components want to exchange their data. This scheme work based on crypto hash function, and Discrete Wavelet Transform (DWT) that apply on sender's/receiver's message. Our proposed scheme distinguishes a good of security, scalability, and reliability in entities' data via IoT. Additionally, our work includes numerous security features like one time message code for each user's login request, user's message integrity, user's message anonymity, and session key agreement. Empirical results have explained the potential and profits of the proposed scheme as well as significant gains in performance.
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