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SUMMARY:Reliable methods for plain text information hiding - Ching-Yun Cha
 ng
DTSTART:20100215T123000Z
DTEND:20100215T133000Z
UID:TALK23076@talks.cam.ac.uk
CONTACT:Diarmuid Ó Séaghdha
DESCRIPTION:At this session of the NLIP Reading Group we’ll be discussin
 g the following paper:\n\nBrian Murphy and Carl Vogel. 2007. "The syntax o
 f concealment: reliable methods for plain text information hiding":http://
 clic.cimec.unitn.it/brian/publications/murphyVogel07SyntaxConcealmentIH.pd
 f. In Proceedings of the SPIE International Conference on Security\, Stega
 nography\, and Watermarking of Multimedia Contents.\n\n*Abstract:*\nMany p
 lain text information hiding techniques demand deep semantic processing\, 
 and so suffer in reliability. In contrast\, syntactic processing is a more
  mature and reliable technology. Assuming a perfect parser\, this paper ev
 aluates a set of automated and reversible syntactic transforms that can hi
 de information in plain text without changing the meaning or style of a do
 cument. A large representative collection of newspaper text is fed through
  a prototype system. In contrast to previous work\, the output is subjecte
 d to human testing to verify that the text has not been significantly comp
 romised by the information hiding procedure\, yielding a success rate of 9
 6% and bandwidth of 0.3 bits per sentence.
LOCATION:GS15\, Computer Laboratory
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