You are here
Search results
(1 - 2 of 2)
- Title
- Secure communication gateway design for smart grid
- Creator
- Tang, Xiaochen
- Date
- 2012
- Collection
- Electronic Theses & Dissertations
- Description
-
Secure and efficient communication between human being and managed devices is critical for Smart Grid and Smart Home. This thesis considers the architecture and design of a secure access gateway (SAG) for home area networks. The SAG serves as the interface between the remote users and the managed devices, such that real-time secure monitoring and control of the devices can be achieved through a Smart Phone. We try to address the security and capacity challenges using multilayer techniques....
Show moreSecure and efficient communication between human being and managed devices is critical for Smart Grid and Smart Home. This thesis considers the architecture and design of a secure access gateway (SAG) for home area networks. The SAG serves as the interface between the remote users and the managed devices, such that real-time secure monitoring and control of the devices can be achieved through a Smart Phone. We try to address the security and capacity challenges using multilayer techniques. Security enhancement is ensured through network layer protocol development, as well as inherently secure physical layer transceiver design, capacity improvement is achieved through dynamic spectrum sharing. We also develop an evaluation platform of our proposed system and implement our secure algorithm on that platform. Remote monitoring and control of home/office devices through a Smart Phone is coming closer to us more than ever before.
Show less
- Title
- Defense against primary user emulation attacks in cognitive radio networks using advanced encryption standard
- Creator
- Alahmadi, Ahmed Salah
- Date
- 2014
- Collection
- Electronic Theses & Dissertations
- Description
-
This thesis considers primary user emulation attacks (PUEA) in cognitive radio networks operating in the white spaces of the digital TV (DTV) band. We propose a reliable AES-assisted DTV scheme, in which an AES-encrypted reference signal is generated at the TV transmitter and used as the sync bits of the DTV data frames. By allowing a shared secret between the transmitter and the receiver, the reference signal can be regenerated at the receiver and used to achieve accurate identification of...
Show moreThis thesis considers primary user emulation attacks (PUEA) in cognitive radio networks operating in the white spaces of the digital TV (DTV) band. We propose a reliable AES-assisted DTV scheme, in which an AES-encrypted reference signal is generated at the TV transmitter and used as the sync bits of the DTV data frames. By allowing a shared secret between the transmitter and the receiver, the reference signal can be regenerated at the receiver and used to achieve accurate identification of the authorized primary users. Moreover, when combined with the analysis on the auto-correlation of the received signal, the presence of the malicious user can be detected accurately no matter the primary user is present or not. We analyze the effectiveness of the proposed approach through both theoretical analysis and simulation examples. It is shown that with the AES-assisted DTV scheme, the primary user, as well as malicious user, can be detected with high accuracy under primary user emulation attacks. It should be emphasized that the proposed scheme requires no changes in hardware or system structure except of a plug-in AES chip. Potentially, it can be applied directly to today's DTV system under primary user emulation attacks for more efficient spectrum sharing.
Show less