Titulo Estágio
Spread Spectrum and Jamming for Wireless Secrecy
Áreas de especialidade
Comunicações, Serviços e Infraestruturas
Local do Estágio
DEI-FCTUC
Enquadramento
The access to a shared wireless medium facilitates denial-of-service (DoS) attacks, in which malicious devices may compromise network access to legitimate devices. However, the shared nature of wireless networks can also be used to devise security mechanisms, such as those that use so-called friendly jammers to cause interference to adversary eavesdroppers that aim to access information that is not intended for them.
Frequency-hopping can also be used to deceit adversaries by having legitimate devices hopping between frequencies according to a previously shared sequence of hops that is unknown to an adversary. Recent contributions in this area propose a non-coordinated approach to frequency-hopping, in which legitimate devices deceit the adversary by hopping randomly and independently between channels; in such case, successful communication happens whenever legitimate devices land on the same frequency without the adversary doing so, without depending on sharing a sequence.
Objetivo
The goal of this thesis is to develop mechanisms for enhanced wireless security in a context in which devices communicate via frequency-hopping spread spectrum methodologies. In particular, we intend to use generation of interference as a mechanism to reduce the probability of an adversary having access to legitimate communication between devices that communicate in a frequency-hopping fashion with the goal of deceiving and adversary.
Plano de Trabalhos - Semestre 1
- State-of-the art study on security through interference generation and spread spectrum methodologies;
- Definition of a framework to analyze the effect of varying parameters such as the number of channels, the quantity and location of jammer and eavesdropper adversaries;
- Intermediate report.
Plano de Trabalhos - Semestre 2
- Analysis of the impact of devices' locations on the security level;
- Evaluation and analysis of the security gains achieved via frequency hopping and interference for secrecy;
- Implementation and evaluation of security schemes based on frequency hopping and interference;
- Writing of dissertation.
Condições
This thesis is part of a CMU-Portugal project proposal currently under evaluation.
Orientador
João Vilela
jpvilela@dei.uc.pt 📩