design and simulation of secure image encryption algorithm
Shweta P Bhoyar, G N Wazurkar, Mhala N.N. · International journal of advance research and innovative ideas in education · 2016
Encryption is the coding of information from one form to another. This coding of information is done through various methods. In this papers, the wavelet transform and Rubik’s cube encryption algorithm is used. By using Wavelet transform in combination with the Rubik’s cube algorithm, the image which is encrypted is more secured. This papers shows the encryption and decryption by using the same secret key for both. Such type of encryption is called as symmetric encryption. Here the two pseudorandom vectors KR and KC are generated. This is to create the confusion and diffusion within the image. The parameters Number of pixels change rate (NPCR) and unified average changing intensity(UACI) are calculated.