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    Dictionary module and UDC: Two new approaches to enhance embedding capacity of a steganographic channel

    19371_downloaded_stream_463.pdf (1.564Mb)
    Access Status
    Open access
    Authors
    Potdar, Vidyasagar
    Han, Song
    Chang, Elizabeth
    Date
    2005
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Potdar, Vidyasagar and Han, Song and Chang, Elizabeth. 2005. : Dictionary module and UDC: Two new approaches to enhance embedding capacity of a steganographic channel, in Dillon, T. and Yu, X. and Chan, E. (ed), INDIN 2005: 3rd International Conference on Industrial Informatics, Frontier Technologies for the Future of Industry and Business, Aug 10 2005, pp. 697-700. Perth, WA: IEEE.
    Source Title
    3rd IEEE International Conference on Industrial Informatics (INDIN 2005)
    Source Conference
    INDIN 2005: 3rd International Conference on Industrial Informatics, Frontier Technologies for the Future of Industry and Business
    DOI
    10.1109/INDIN.2005.1560460
    ISBN
    0-7803-9094-6
    Faculty
    Curtin Business School
    School of Information Systems
    School
    Centre for Extended Enterprises and Business Intelligence
    Remarks

    Copyright 2005 IEEE. Reprinted from: 2005 3rd IEEE International Conference on Industrial Informatics (INDIN) Perth, Australia 10-12 August 2005. IEEE Catalog Number 05EX1057

    This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Curtin University of Technology's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org.

    By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

    URI
    http://hdl.handle.net/20.500.11937/44899
    Collection
    • Curtin Research Publications
    Abstract

    In this paper we present a new technique to enhance embedding capacity of a steganographic channel by preprocessing the secret data. Here we limit ourselves to textual data only. By preprocessing we don't mean compression; secret data can be compressed after it has been preprocessed by our technique. We introduce the concept of Scrambled Letters, User Defined Codes and the Dictionary Module to explain our technique. All these concepts when applied together give a phenomenal embedding capacity. Theoretical results show that we can achieve at least 25-30% increase in embedding capacity. We introduce two techniques, one in which we only apply the dictionary concept while the other in which we use the user defined codes along with the dictionary approach. The former technique is generic and can be applied to any form of textual data, whereas the latter can only be applied to pure text, i.e. without any form of graphics like images or graphs. Once the data is preprocessed by using our technique it can be easily embedded in any steganographic cover medium by using any steganographic algorithm.

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