Security of the multimedia data including image and video is one of the basic requirements for the telecommunications and\r\ncomputer networks. In this paper, we consider a simple and lightweight stream encryption algorithm for image encryption, and a\r\nseries of tests are performed to confirm suitability of the described encryption algorithm. These tests include visual test, histogram\r\nanalysis, information entropy, encryption quality, correlation analysis, differential analysis, and performance analysis. Based on\r\nthis analysis, it can be concluded that the present algorithm in comparison to A5/1 and W7 stream ciphers has the same security\r\nlevel, is better in terms of the speed of performance, and is used for real-time applications.
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