An image encryption is a traditional way to hide original image to an adversary in the case of secure image transmission. In this regard, the Artificial Neural Network (ANN) can be used in digital communication systems (digital image transmission) to achieve a secure and reliable data transmission. However, we have designed a new scheme that encrypts a color image, which can be used in secure image transmission. This proposed scheme is divided into three steps, (a) we subdivide the color image into R (red), G (green) and B (blue) factors, and using the chaotic map, we randomly shuffle these RGB factors to get first encrypted image; (b) we process the first encrypted image through the single-layer artificial neural network to get the second encrypted image; and (c) pixels of the second encrypted image are shuffled using exclusive-or (XOR) operation to get the final encrypted image, which can be transmitted over insecure channel. Furthermore, we have examined the proposed scheme on some standard color images each of size 512 × 512. The several security study and experimental outcomes indicate that the proposed scheme can protect from several statistical attacks like Plaintext Attack, Cipher text Attacks, Brute Force Attack, and Birthday Attack etc.

Encryption, RGB buffer shuffle, Artificial Neural Network, Attacks

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