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The advance of micro-sensor, nano-systems and networking technologies shown a great potential of small-size, low energy consumption, low storage, and self-adaptation sensors. Large scale wireless sensor networks (LSWSNs) consists of some them that have sensing, computation, wireless communication, and free-infrastructure abilities. The target signal selection problem in LSWSNs attracts attention of...
Recently, two chaotic image encryption schemes were presented, in which shuffling the positions and changing the grey values of image pixels were combined to confuse the relationship between the cipher-image and the plain-image. In this paper, we provide the known/chosen plaintext attack to recover the corresponding plaintext of a given ciphertext. Furthermore, we point out that the two schemes are...
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