MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202621056276 A) filed by Dr. D. Y. Patil Institute Of Technology, Pimpri, Pune - on May 04, 2026, for Image-Based Key Generation For Self-Contained Steganographic Encoding.
Inventors include Mrs. Swati D. Khairnar; and Vishal Firangu Tamhane.
The application for the patent was published on July 03, 2026, under issue no. 27/2026.
Abstract: Digital networks now link the world. The need, for communication is greater than ever. Steganography hides messages inside media such as images. Steganography gives a way to keep communication secret. Most steganography systems have one problem: the distribution and management of keys. Traditional methods make users exchange keys, over channels that may be insecure. Those insecure channels can let attackers see or steal the key. When attackers steal the key the security of the message is lost. The seminar introduces a steganography method. The method is very secure. The method removes a weakness by getting the encryption key, from the cover image. I found the idea of deriving the encryption key from the image itself. The method builds an image fingerprint. The fingerprint uses the image size, the pixel statistics, the spatial textures and the shapes of the histograms. The fingerprint then changes into a key using the SHA-256 hashing algorithm. First I generate the key. Then I encrypt the information, with AES-GCM. AES-GCM keeps the message private. Checks that the message is not changed. Next I hide the encrypted data, inside the cover image. I use a pseudo LSB embedding method to do that. I set the embedding pattern of the sites using a generator. The secure random generator uses the image derived key as its seed. This technique makes the message existence and the message content invisible. The message existence and the message content stay hidden unless someone has the cover image and knows the derivation procedure. The same feature extraction technique creates the encryption key, from the stego-image at the receiving end. The same feature extraction technique lets the authorized persons retrieve the message and decrypt the message. Only if the image is authentic and not tampered. The closed-loop system stops the transmission of the key in any form. The closed-loop system lowers the chance of interception. The closed-loop system protects the process from the attacks such, as steganalysis, cryptanalysis and side channel attacks. The system still keeps the cover image clear. I see that the system lets the hidden data stay unseen which is needed for communication. I also see that the approach lets the system work in situations where security is needed. The approach covers messaging, digital watermarking, private archive storage and control of rights. The steganographic system is an innovation, by design. I think the steganographic system offers a easy way to hide messages. I have seen the steganographic system bring together image processing, cryptography and advanced embedding algorithms. The steganographic system works in the changing world.
Disclaimer: Curated by HT Syndication.
