A Novel Method of Image Encryption Using Logistic Mapping

In this paper, we proposed a new method to develop secure image-encryption techniques using a logistics -based encryption algorithm. In this technique, a Haar wavelet transform was used to decompose the image and decorrelate its pixels into averaging and differencing components. The logistic based encryption algorithm produces a cipher of the test image that has good diffusion and confusion properties. The remaining components (the differencing components) are compressed using a wavelet transform. Many test images are used to demonstrate the validity of the proposed algorithm. The results of several experiments show that the proposed algorithm for image cryptosystems provides an efficient and secure approach to real-time image encryption and transmission. To send the keys in secure form steganography will be used. Steganographic techniques allow one party to communicate information to another party without a third party even knowing that the communication is occurring KeywordsImage encryption, Haar wavelet, logistics mapping, Steganography