The Internet of things (IoT) is considered as a network of devices which allows them to interact, connect and exchange data. Stimulators and sensors are considered as smart devices in our environment. Due to the nature of IoT that depends on low computational power devices equipped with a sensor, the security of these systems differs from the security of the traditional system which is been applied in conventional network devices. Simultaneously IoT security brings out new issues. Therefore safety is a fundamental issue in designing IoT. Hybrid encryption is a mode of encryption that makes use of merging two or more encryption systems hence it is considered as a highly secure type of encryption as long as the public and private keys are fully secure. This encryption type provides long security and low consumption. In this paper we have proposed a hybrid encryption algorithm which has been conducted in order to reduce safety risks and enhancing encryption's speed. The main purpose of this hybrid algorithm is maintaining data integrity, confidentiality, non-repudiation in data exchange for IoT. Eventually, the suggested encryption algorithm has been simulated by MATLAB software, and its speed and safety were evaluated in comparison with a conventional encryption algorithm