Generalization
Hidden channels
Article REF: H5860 V1
Generalization
Hidden channels

Author : Frédéric RAYNAL

Publication date: October 10, 2003 | Lire en français

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4. Generalization

The implementation of a covert channel relies on two distinct issues: on the one hand, the information transport vector, and on the other, the way in which the information is encoded. In this section, we focus on both aspects.

4.1 A vehicle for communication

In the context of networks, there are usually two ways of constructing a covert channel:

  • use "neglected" data;

  • modify a field used by the protocol.

In

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