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Covert channels are an immense cause of security concern because they can be used to pass malicious messages. The messages could be in form of computer virus, spy programs, terrorist messages, etc. Most available techniques proposed covert channels that use the upper layers of the OSI model. In this paper, we discuss a novel covert channel in the data link(More)
In this paper we propose a novel covert channel for exchanging secret information, based on the IP header record route options. Instead of encrypting a secret message or embedding it into a multimedia object, as in traditional steganography, we process the entire message and generate several IP packets with different types to carry the secret information.(More)
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