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Steganography – The art of hiding a message in plain sight.
KTH, School of Computer Science and Communication (CSC).
KTH, School of Computer Science and Communication (CSC).
2012 (English)Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Amelia Andersson Linus Enroth Hansson

Steganography

The art of hiding a message in plain sight

Information is sent back and forth between millions of people every hour, but you never know who might be listening. Mail-clients use encoding to protect the privacy of their users, but is it enough to ensure complete secrecy? We can never be completely sure that the information we store, send or receive hasn't been intercepted or altered.

This report will begin with a background of secret correspondences throughout history, it will then focus on the methods and implementations available today. Among the methods we find Context-Free Mimicry, the steganographic approach used to construct the implementation described in the latter part of this report. A presentation of the user experiment conducted to evaluate this implementation is also found in this report.

Abstract [sv]

Amelia Andersson Linus Enroth Hansson

Steganografi

Konsten att gmma meddelanden synligt

Mngder av information skickas fram och tillbaka mellan mnniskor varje timma, men man vet aldrig vem som lyssnar. Mejlklienter anvnder sig av kryptering fr att skydda sina anvndares privatliv, men r det tillrckligt fr att garantera ogenomtrnglig skerhet? Vi kan aldrig vara riktigt skra p att informationen vi lagrar, skickar eller tar emot inte har blivit tillgngliga fr utomstende, avlyssnade eller ndrade.

Denna rapport brjar med att ge en bakgrund kring olika historiska metoder fr hemliga korrespondenser, fr att sedan g vidare till metoder och implementationer som r tillgngliga idag. Bland dessa gr att finna Context-Free Mimicry, den steganografiska metoden som anvndes till att konstruera den implementation som var del av detta projekt. Implementationen beskrivs i slutet av rapporten, tillsammans med det utvrderande anvndarexperiment som utfrdes.

Place, publisher, year, edition, pages
2012.
Series
Kandidatexjobb CSC, K12004
National Category
Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-131009OAI: oai:DiVA.org:kth-131009DiVA: diva2:654455
Educational program
Master of Science in Engineering - Computer Science and Technology
Uppsok
Technology
Supervisors
Examiners
Available from: 2013-10-07 Created: 2013-10-07

Open Access in DiVA

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Other links

http://www.csc.kth.se/utbildning/kandidatexjobb/datateknik/2012/rapport/andersson_amelia_OCH_enroth_hansson_linus_K12004.pdf
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Citation style
  • apa
  • harvard1
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  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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