A New Algorithm for Digital Image Scrambling
Jia Xuan-yao · Computer and Modernization · 2006
This paper presents a useful new algorithm of digital image scrambling.It achieves space chaos of an image with a pseudo-random sequence generated by linear congruential method,and achieves gray chaos by XOR operation.This algorithm's secret keys are different to each other,and they are in many types,and the histogram is also different to the original image's histogram,so it's difficult to crack the encrypted image by exhaustive method.On the other hand,the decryption method is easy to obtain,and the decryption process is irrelative with the encryption cycle,so it shortens the time consuming of decryption greatly.The results of experiment indicate that,this algorithm plays a good performance in anti-attack and anti-jamming,and what's more,it's easy to be realized,so it is an ideal method for image scrambling.