IBM Systems Journal
Multimedia Data Hiding
Attacks on Steganographic Systems
IH '99 Proceedings of the Third International Workshop on Information Hiding
Natural Language Watermarking: Design, Analysis, and a Proof-of-Concept Implementation
IHW '01 Proceedings of the 4th International Workshop on Information Hiding
Natural Language Watermarking and Tamperproofing
IH '02 Revised Papers from the 5th International Workshop on Information Hiding
Exploiting Linguistic Features in Lexical Steganography: Design and Proof-of-Concept Implementation
HICSS '06 Proceedings of the 39th Annual Hawaii International Conference on System Sciences - Volume 06
Information Hiding in Text Using Typesetting Tools with Stego-Encoding
ICICIC '06 Proceedings of the First International Conference on Innovative Computing, Information and Control - Volume 1
MM&Sec '06 Proceedings of the 8th workshop on Multimedia and security
ICCIT '07 Proceedings of the 2007 International Conference on Convergence Information Technology
WhiteSteg: a new scheme in information hiding using text steganography
WSEAS Transactions on Computers
A Robust Binary Text Digital Watermarking Algorithm for Print-Scan Process
CSIE '09 Proceedings of the 2009 WRI World Congress on Computer Science and Information Engineering - Volume 07
Print-and-scan model and the watermarking countermeasure
Image and Vision Computing
ICCEE '09 Proceedings of the 2009 Second International Conference on Computer and Electrical Engineering - Volume 01
Content-aware steganography: about lazy prisoners and narrow-minded wardens
IH'06 Proceedings of the 8th international conference on Information hiding
IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
IEEE Transactions on Information Forensics and Security
Reversible data hiding for JPEG images based on histogram pairs
ICIAR'07 Proceedings of the 4th international conference on Image Analysis and Recognition
A compression-based text steganography method
Journal of Systems and Software
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This paper proposes a text-based data hiding method to insert external information into Microsoft Word document. First, the drawback of low embedding efficiency in the existing text-based data hiding methods is addressed, and a simple attack, DASH, is proposed to reveal the information inserted by the existing text-based data hiding methods. Then, a new data hiding method, UniSpaCh, is proposed to counter DASH. The characteristics of Unicode space characters with respect to embedding efficiency and DASH are analyzed, and the selected Unicode space characters are inserted into inter-sentence, inter-word, end-of-line and inter-paragraph spacings to encode external information while improving embedding efficiency and imperceptivity of the embedded information. UniSpaCh is also reversible where the embedded information can be removed to completely reconstruct the original Microsoft Word document. Experiments were carried out to verify the performance of UniSpaCh as well as comparing it to the existing space-manipulating data hiding methods. Results suggest that UniSpaCh offers higher embedding efficiency while exhibiting higher imperceptivity of white space manipulation when compared to the existing methods considered. In the best case scenario, UniSpaCh produces output document of size almost 9 times smaller than that of the existing method.