| Popis: |
Network security consists of provisions and policies adopted by network administrator to prevent unauthorized access of network accessible resources. Jamming can be viewed as a form of Denial-of-Service attack, whose goal is to prevent users from receiving timely and adequate information. In these attacks, the adversary is active only for a short period of time, selectively targeting messages of high importance. This paper presents a survey of the existing jamming attack prevention techniques. Selective jamming attacks can be launched by performing real-time packet classification at the physical layer. To mitigate these attacks, three schemes that prevent real-time packet classification by combining cryptographic primitives with physical-layer attributes are also presented in this paper. |
