With the rise in social uses of image sharing, there is an even bigger need for private image sharing.  Indian researcher Manish Kumar is revolutionizing how images are encrypted and shared for both public and private bodies.   In his talk “Two stage hyper-chaotic system based image encryption in wavelet packet domain for wireless communication systems”, Kumar discussed methods in which photos undergo protections using a novel algorithm to ensure superior levels of protections against adversaries. 

 

Using a two-stage process, Dr. Kumar has created a platform that supersedes current practice in image encryption. In the first stage, random sequences characterizing the RBG pixelation are generated from hyper-chaotic system described from 4D L_𝑢_ differential equations. In stage two, a randomly transformed image is retrieved from a wavelet packet transformation(DWPT).

 

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The significance of this algorithm lies in its infallibility to adversarial attempts to recover an image. When tested using industry-standard statistical measures, it was found that fewer that 1 in 10^14 (1,000,000,000,000,000) images would be successfully decrypted by an adversary.

 

“There is no way to recover an image after a wavelet packet transformation has been conducted without the key. Governments and private citizens should have access to this resource to protect their images and energy systems. Major national threats could be prevented with a reliable encryption system.”, said Kumar.

 

Based at Birla Institute of Technology & Science Pilani (BITS Pilani), Kumar hopes to create an accessible platform for reliable encryption of images on all platforms.