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An approach using stream cipher algorithm for image encryption and decryption

机译：一种使用流密码算法进行图像加密和解密的方法

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This paper treats the protection of images. We are dealing with the problem of image encryption and decryption. The encryption scheme is done by using the stream cipher system based on the nonlinear combination generator. The proposed keystream generator consists of fourteen binary primitive nonlinear feedback shift registers (NLFSRs) and one Boolean function. The Boolean function combines the output sequences of the fourteen NLFSRs to produce the keystream. All feedback shift registers employed in the keystream generator are primitive and nonlinear. The proposed encryption scheme is simple and highly efficient. Security analysis covers key sensitivity analysis, key space analysis, correlation coefficient analysis, noise analysis, statistical attacks, Berlekamp-Massey attack, correlation attack and algebraic attack. Based on experiment results and the security analysis it can be concluded that the proposed encryption scheme is highly key sensitive, highly resistance to the noises and shows a good resistance against brute-force, statistical attacks, Berlekamp-Massey attack, correlation attack and algebraic attack.
机译：本文对象保护图像。我们正在处理图像加密和解密的问题。通过使用基于非线性组合发生器的流密码系统来完成加密方案。所提出的keyStream生成器由十四二进制原始非线性反馈移位寄存器（NLFSR）和一个布尔函数组成。布尔函数组合了十四个NLFSR的输出序列来生成键盘。密钥流发生器中使用的所有反馈移位寄存器都是原始的和非线性。所提出的加密方案简单且高效。安全性分析涵盖关键敏感性分析，关键空间分析，相关系数分析，噪声分析，统计攻击，Berlekamp-Massey攻击，相关攻击和代数攻击。基于实验结果和安全分析，可以得出结论，所提出的加密方案是高度关键的敏感，高度阻力，对鼻子力量，统计攻击，Berlekamp-Massey攻击，相关攻击和代数攻击表示良好的抵抗力。

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