Design of Maintaining Data Security on IoT Data Transferred Through IoT Gateway System to Cloud Storage

IoT is a smart-device environment; it acts smarter and gives higher quality to enhance the user experience. IoT is an open network environment. However, IoT's security challenges are more vulnerable because the devices are openly accessible to all in the network. IoT communication can be formed in different ways, where the device generates the data is communicated to other devices or gateway or cloud. Therefore, security challenges are in everywhere IoT environment. IoT Communication considered in this paper is gateway communication. Data generated from the IoT environment are directed to the cloud over a gateway system. Hence, the data essentials to be protected from the IoT devices to the gateway system and the gateway system to the cloud storage. The cloud is a public environment that makes security is a challenge to keep data secure. Therefore, securing IoT data to the cloud environment is the most significant focus. This paper focuses on securing the data from the gateway system to the cloud storage. The paper proposes an enhanced modern symmetrical encryption to secure data to ensure data security in the travel and storage of IoT data to the cloud. The proposed Enhanced Modern Symmetric Data Encryption (EMSDE) is a block cipher encryption technique. It encrypts data by 64-bit block. Proposed encryption is tested according to time and level of security. Thingspeak stores the IoT data sent from the IoT gateway system for implementation and testing. Based on the testing, the proposed EMSDE produces better results, and it is tailored to secure data stored in the cloud from IoT devices.