Item Details

title

Creating a Robust Form of Steganography

author

Buchanan, Joshua

abstract

Steganography is a relatively new and exciting field in the world of computer science. It involves embedding data into a medium in such a manner that it cannot be easily detected. This paper provides the reader with a basic overview of steganography. This overview includes the purpose, goals, and pre-digital history of steganography. The emphasis is on hiding data within images, with a focus on the robustness of the hidden message. Current spatial embedding techniques are not robust to basic compression algorithms. It examines the ‘least-significant bit’ paradigm which drives the spatial technique, and formulates a ‘more-significant bit’ paradigm in order to produce a more-robust method. Following this paradigm leads to the idea of transform embedding, hiding data in the frequency domain. This paper proposes a transform embedding method (STEM) which uses existing ideas from digital watermarking, improving upon them with empirical data to make them suitable for steganography. This method is more robust than existing spatial embedding methods. Experimental results are presented which support this claim.

subject

information hiding

steganography

stego

STEM

transform embedding

contributor

jbuchanan@alumni.wfu.edu (authorEmail)

Dr. Stan Thomas (committee chair)

Dr. Daniel Canas (committee member)

Dr. David John (committee member)

creator

Buchanan, Joshua

date

2008-09-28T10:55:23Z (accessioned)

2010-06-18T18:58:33Z (accessioned)

2005-07-02 (available)

2008-09-28T10:55:23Z (available)

2010-06-18T18:58:33Z (available)

2004-04-26 (issued)

degree

null (defenseDate)

Computer Science (discipline)

Wake Forest University (grantor)

MS (level)

identifier

Buchanan_STEM04.pdf

http://hdl.handle.net/10339/14775 (uri)

migration

etd-05092004-110852 (oldETDId)

rights

Release the entire work immediately for access worldwide. (accessRights)

I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Wake Forest University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. (license)