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Secret Key Agreement for Data Dissemination in Vehicular Platoons
| Nome: | Descrição: | Tamanho: | Formato: | |
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| 1.49 MB | Adobe PDF |
Orientador(es)
Resumo(s)
In a vehicular platoon, the lead vehicle that is responsible for managing the platoon’s moving directions and velocity
periodically disseminates messages to the following automated vehicles in a multi-hop vehicular network. However, due to the broadcast nature of wireless channels, this kind of communication is
vulnerable to eavesdropping and message modification. Generating
secret keys by extracting the shared randomness in a wireless fading
channel is a promising way for wireless communication security.
We study a security protocol for data dissemination in the platoon,
where the vehicles cooperatively generate a shared secret key based
on the quantized fading channel randomness. To improve conformity of the generated key, the probability of secret key agreement
is formulated, and a novel secret key agreement algorithm is proposed to recursively optimize the channel quantization intervals,
maximizing the key agreement probability. Numerical evaluations
demonstrate that the key agreement probability achieved by our
security protocol given different platoon size, channel quality, and
number of quantization intervals. Furthermore, by applying our
security protocol, the probability that the encrypted data being
cracked by an eavesdropper is less than 5%.
Descrição
Palavras-chave
Autonomous vehicles Data communication Vehicular security Optimization
Contexto Educativo
Citação
Editora
Institute of Electrical and Electronics Engineers