063 - jphs, jpeg hide & seek, test

063 - - steganography series: simple apps to encrypt things from your little brother or sister. "jphs"(jpeg hide and seek) test

jphs for windows version 0.5 by Allan Latham

Jphswin.exe = the program

This program encrypts a file into an existing jpg file. The hidden file size limitation should be about
1/10th the size of the jpg!


To "decrypt" the test file "jphs-test1.jpg" (approx 21 Kb, md5-hash:d894f502137973ae0a2182e32fb054d4. This is a picture of a happy face on a blue background):

Step1. Click on "Open jpeg" button & then choose jphs-test1.jpg
Step2. Click "Seek" button. A pass phrase window appears. The pass phrase is "password".
Step3. Next, a save file dialog window appears. Save the file with an arbitrary name like jphs-content.gif. (You have to enter the extension.)

If the process is successful, you will have a resultant .gif file approximately 2 Kb in size, md5-hash:21b5afd61cdebbaf4491ee748e0c6762.

Links:
box.net "jphs-test1.jpg" http://www.box.net/steganography/1/43429648/440359102

mediafire "jphs-test1.jpg" http://www.mediafire.com/file/yzbuwmmdoyg/jphs-test1.jpg :


photobucket "jphs-test1.jpg": http://i556.photobucket.com/albums/ss4/jcpma/20100521stegano/th_jphs-test1.jpg


tinypic "jphs-test1.jpg": http://i50.tinypic.com/1zvsikp.jpg


.
mediafire: App.Pkg: jphswin.zip archive http://www.mediafire.com/file/mvmqwjn32dg/jphswin.zip
box.net: App.Pkg: jphswin.zip archive http://www.box.net/steganography/1/43429648/440359180