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The simple structure of compressed sensing (CS) lead to low complexity encryption, which is fascinating for nodes with limited resources in the wireless network. In this paper, we analyze the performance of the encryption method based on compressed sensing, and prove that the encryption can achieve the information theory security. The effect of the sparsity and the signal noise ratio (SNR) on the...
When extracting secret key from shared wireless channel between two legitimate moving terminals, its capacity is affected by the time difference of channel sampling, terminal's mobility, and additive noise. In order to quantitatively analyze their effects, a closed-form solution to physical layer secret key capacity in the time domain is derived over the uniform scattering environment. Afterwards,...
Existing studies on the secret key generation based on physical layer wireless fading channel are largely open under active attacks. In this paper, we discuss how the man-in-the- middle (MITM) attacker, who acts as a transparent relay, attacks the training phase in wireless communication to improve the information leaked rate. We prove that the MITM attacker can intercept all of the channel information...
When extracting physical layer security secret key with multiple wireless channel samples, its capacity is affected by the time difference of channel sounding, terminal's moving speed, sampling period, the number of samples, and additive noise. In order to quantitatively analyze their effects and determine the constrains on the optimal sampling period, a closed-form solution to the physical layer...
A secure and effective handoff scheme is the key to guarantee seamless roaming of mobile terminals in all IP heterogeneous wireless networks. In the current work, Fast handoffs for mobile IPv6 (FMIPv6) can reduce the handoff latency, but the process of registration update badly affects the handoff efficiency, and it doesn't think of the necessary secure function when handoff across heterogeneous networks...
To enhance access security capability of WiMAX (Worldwide Interoperability for Microwave Access), a trusted access scheme based on identity is proposed in this paper. It adopts trusted access architecture which includes three layers: identity layer, evaluation layer and authentication layer. Firstly, every entity is assigned only an identity in the identity layer; secondly, credible attribute of the...
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