Detection of covert voice-over Internet protocol communications using sliding window-based steganalysis
نویسندگان
چکیده
منابع مشابه
Steganalysis of compressed speech to detect covert voice over Internet protocol channels
A network covert channel is a passage along which information leaks across the network in violation of security policy in a completely undetectable manner. This paper reveals our findings in analysing the principle of G.723.1 codec that there are ‘unused’ bits in G.723.1 encoded audio frames, which can be used to embed secret messages. A novel steganalysis method that employs the second detecti...
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ژورنال
عنوان ژورنال: IET Communications
سال: 2011
ISSN: 1751-8628,1751-8636
DOI: 10.1049/iet-com.2010.0348