<< Chapter < Page Chapter >> Page >

Data hiding methods

Bit-o-steg

Previous work and background

In our research we found a steganographic method known as JSteg, created by Derek Upsham. The basic premisebehind JSteg is that its algorithm hides the data sequentially within the least significant bits of the DCT coefficients (Nielsand Honeyman). The problem with JSteg is that it is not very secure; there is no secret key with which it is encrypted. Therefore, anybody that knows animage contains data with JSteg hiding can easily retrieve the hidden message. Our second hiding method, which we have calledbit-o-steg, improves upon the JSteg algorithm since we employ the use of a key when hiding the data.

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Elec 301 projects fall 2005. OpenStax CNX. Sep 25, 2007 Download for free at http://cnx.org/content/col10380/1.3
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Elec 301 projects fall 2005' conversation and receive update notifications?

Ask