Java-Stego.rar_java

JavaArt Chapter 6. Steganography From the website: Killer Game Programming in Java http://fivedots.coe.psu.ac.th/~ad/jg Dr. Andrew Davison Dept. of Computer Engineering Prince of Songkla University Hat yai, Songkhla 90112, Thailand E-mail: [email protected] If you use this code, please mention my name, and include a link to the website. Thanks, Andrew ============================ This directory contains 6 Java programs. * HideText.java - this calls one of the steganography classes to hide text inside an image * RevealText.java - this calls one of the steganography classes to extract text hidden inside an image * Steganography.java // 4 steganography classes * StegCrypt.java * MultiStegCrypt.java * FragMultiStegCrypt.java There are 2 subdirectories: * examps\ -- text files for use in testing * images\ -- PNG files for use in testing There are 2 batch files: * compile.bat * run.bat - they assume that Jasypt is in c:\jasypt-1.5\ ---------------------------- Compilation: > compile *.java ---------------------------- Execution: The HideText and RevealText classes take an integer argument which specifies which steganography class they should use: 0 == Steganography class 1 == StegCrypt class 2 == MultiStegCrypt class 3 == FragMultiStegCrypt class 1) Hiding Text: Usage: > run HideText <steg type number> <text file> <PNG file> e.g. > run HideText 0 examps\Comparison.java images\waterlilies.png - use Steganography class (0) to hide the text in examps\Comparison.java inside the image images\waterlilies.png, saving the modified image in images\waterliliesMsg.png > run HideText 3 examps\Painter.java images\bigCat.png - use FragMultiStegCrypt class (3) to hide the text in examps\Painter.java inside the image images\bigCat.png, saving the modified image in images\bigCatMsg.png --------- 2) Extracting Text: Usage: > run RevealText <steg type number> <PNG file> e.g > run RevealText 0 images\waterliliesMsg.png - use Steganography class (0) to extract the text from images\waterliliesMsg.png, saving it in images\waterliliesMsg.txt > run RevealText 3 images\bigCatMsg.png - use FragMultiStegCrypt class (3) to extract the text from images\bigCatMsg.png, saving it in images\bigCatMsg.txt ---------------------------- Jasypt Installation Download Jasypt v.1.5 from http://www.jasypt.org/ (jasypt-1.5-dist.zip; 2.4 MB), unzip it, and store jasypt-1.5\ in a convenient location (e.g. c:\jasypt-1.5\). --------- Last updated: 6th June 2009