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DSP
2006
13 years 5 months ago
Detection of audio covert channels using statistical footprints of hidden messages
We address the problem of detecting the presence of hidden messages in audio. The detector is based on the characteristics of the denoised residuals of the audio file, which may c...
Hamza Özer, Bülent Sankur, Nasir D. Memo...
ESORICS
2009
Springer
14 years 8 days ago
Hide and Seek in Time - Robust Covert Timing Channels
Abstract. Covert timing channels aim at transmitting hidden messages by controlling the time between transmissions of consecutive payload packets in overt network communication. Pr...
Yali Liu, Dipak Ghosal, Frederik Armknecht, Ahmad-...
LCN
2008
IEEE
13 years 12 months ago
Covert channels in multiplayer first person shooter online games
Abstract—Covert channels aim to hide the existence of communication between two or more parties. Such channels typically utilise pre-existing (overt) data transmissions to carry ...
Sebastian Zander, Grenville J. Armitage, Philip Br...
IH
2001
Springer
13 years 10 months ago
Robust Covert Communication over a Public Audio Channel Using Spread Spectrum
We present a set of watermarking techniques for effective covert communication over an audio signal carrier. Watermark robustness is enabled using: (i) redundant spread-spectrum fo...
Darko Kirovski, Henrique S. Malvar
JDFP
2006
139views more  JDFP 2006»
13 years 5 months ago
Discovering Hidden Evidence
Over the past decade, the advancement of a myriad of methods, techniques and technologies to conceal digital evidence and covertly communicate have increased at an alarming rate. I...
Chet Hosmer