Image encryption using stream cipher algorithm with nonlinear filtering function

What is it about?

In this work a new algorithm for encryption image is introduced. This algorithm makes it possible to cipher and decipher images by guaranteeing a maximum security. The algorithm introduced is based on stream cipher with nonlinear filtering function. The Boolean function used in this algorithm is resilient function satisfying all the cryptographic criteria necessary carrying out the best possible compromises. Results are given in this paper.

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Photo by Gaetano Cessati on Unsplash

Photo by Gaetano Cessati on Unsplash

Why is it important?

The visual test indicates that the encrypted image was very different and no visual information can be deduced about the original image for all images. In addition, this method is very simple to implement, the encryption and decryption of an image. The proposed algorithm can resist to the additive noises.