12/07/2019
wellapets
.net, 2019, 2019 android apps, 2019-2020, 2020, Android, Android (Operating System), android (software), android 10, android 2019, android 6.0 sdk, android app, android app bundle, android app development, android app development kit, android app development tutorial, Android app ideas, Android app ideas 2019, Android app ideas 2020, Android app ideas for beginners, Android app ideas for college project, Android app ideas for students, android app making, Android app project, Android app project ideas, Android app projects, android app tutorial, android apps, android apps 2019, android based os, Android based projects, android development, android lollipop, Android mini project topics, Android Mini Projects, android nougat, android on pc, android oreo, android os, android os on pc, Android php projects, android platform architecture, Android Project, Android Project Ideas, Android project ideas 2019, Android project ideas for beginners, Android project ideas for computer science, Android project ideas for students, Android Project Ideas Of 2019, Android Project Ideas Of 2020, Android project ideas with source code, Android Project Titles, Android project topics, Android project with source code, Android project with source code for students, Android Projects, Android Projects For Final Year, Android Projects Ideas, Android projects list, Android Projects Topics, Android Projects With Source Code, android sdk, Android Studio, android studio app development, Android Studio Project, Android Studio Tutorial, Android Tutorial, android versions, android vs iphone, android x86, app, app development, apps for android, best android, best android apps, best android apps 2019, best android os, best android os for pc, best apps for android, best free android apps, Capstone Project Titles, Create Android Project, EEE, Final Year Android Project Titles, Final Year Android Projects, free android app, free android apps, free php projects, Hosur, How To Create New Android Studio Project 2019 2020, how to make an app, how to make android apps, how to make android apps for beginners, Ieee Projects, Ieee Projects Php, In Your Android Project, Java, Kumbakonam, learn android development, learn php, learning android app development, make android app, Mannargudi, Mayiladuthurai, Mca Android Projects, Mca final year projects, Mca final year projects titles, Mca mini project titles with abstract, Mca project ideas, Mca project titles, Mca project topics, Mca projects in android, Mca projects in php, Mca Projects Titles, migliori app android, Mini project topics for mca, Mini projects for mca 5th sem, new android apps, new php project ideas, nodejs vs php, os, PHP, php 2019, php 7, php agency, php books, php college project, php first project, php for beginners, php in 2019, php language, php mysql, php programming, php project, php project code, php project ideas, php project ideas 2018, php project source code, Php Project Titles, Php project topics, Php project topics for mca, php project tutorial, php projects, php projects download, php projects for students, php projects with source code, php school project, php tutorial, php tutorial for beginners, php tutorial for beginners full, php website project, php7, Project, Project center in hosur, Project center in kumbakonam, Project center in mannargudi, Project center in mayiladuthurai, Project center in thanjavur, Project center in trichy, Project Ideas, projects, projects on php, Thanjavur, top 10 android, top android apps, top android apps 2019, Trichy
LOSSLESS AND REVERSIBLE DATA HIDING IN ENCRYPTED IMAGES WITH PUBLIC KEY CRYPTOGRAPHY
This paper proposes a lossless, a reversible, and a combined data hiding schemes for ciphertext images encrypted by public key cryptosystems with probabilistic and homomorphic properties. In the lossless scheme, the ciphertext pixels are replaced with new values to embed the additional data into several LSB-planes of ciphertext pixels by multi-layer wet paper coding. Then, the embedded data can be directly extracted from the encrypted domain, and the data embedding operation does not affect the decryption of original plaintext image. In the reversible scheme, a preprocessing is employed to shrink the image histogram before image encryption, so that the modification on encrypted images for data embedding will not cause any pixel oversaturation in plaintext domain. Although a slight distortion is introduced, the embedded data can be extracted and the original image can be recovered from the directly decrypted image. Due to the compatibility between the lossless and reversible schemes, the data embedding operations in the two manners can be simultaneously performed in an encrypted image. With the combined technique, a receiver may extract a part of embedded data before decryption, and extract another part of embedded data and recover the original plaintext image after decryption.