Author(s): Lee, IS (Lee, I-Shi); Tsai, WH (Tsai, Wen-Hsiang) Title: A new approach to covert communication via PDF files Source: SIGNAL PROCESSING, 90 (2): 557-565 FEB 2010 Language: English
Document Type: Article
Author Keywords: ASCII codes; Covert communication; Data hiding; Invisible codes; PDF files and readers
KeyWords Plus: SECURITY
Abstract: A new covert communication method via PDF files is proposed. A secret message, after being encoded by a special ASCII code and embedded at between-word and between- character locations in the text of a PDF file, becomes invisible in the window of a common PDF reader, creating a steganographic effect for secret transmission through the PDF file.
Experimental results show the feasibility of the proposed method. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Lee, I-Shi; Tsai, Wen-Hsiang] Natl Chiao Tung Univ, Dept Comp Sci, Hsinchu 30010, Taiwan; [Tsai, Wen-Hsiang] Asia Univ, Dept Comp Sci & Informat Engn, Taichung 41354, Taiwan; [Lee, I-Shi] Technol & Sci Inst No Taiwan, Dept Management Informat, Taipei, Taiwan
Reprint Address: Tsai, WH, Natl Chiao Tung Univ, Dept Comp Sci, Hsinchu 30010, Taiwan.
E-mail Address: gis87809@gmail.com; whtsai@cis.nctu.edu.tw Funding Acknowledgement:
Funding Agency Grant Number
NSC 96-2752-E-009-006-PAE 96-2422-H-009-001
This work was supported jointly by the NSC projects nos. 96-2752-E-009-006-PAE and 96- 2422-H-009-001. We also thank Mr. Jiun-Tsung Wang for his programming support and suggestions.
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Cited Reference Count: 14 Times Cited: 0
Publisher: ELSEVIER SCIENCE BV
Publisher Address: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS ISSN: 0165-1684
DOI: 10.1016/j.sigpro.2009.07.022
29-char Source Abbrev.: SIGNAL PROCESS ISO Source Abbrev.: Signal Process.
Source Item Page Count: 9
Subject Category: Engineering, Electrical & Electronic ISI Document Delivery No.: 513OK
