April 2014
Intermediate to advanced
538 pages
17h 31m
English
Content preview from Security for Multihop Wireless Networks
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Security, Trust, and Privacy ◾ 487
18.5.1.2 Opportunistic Encryption
e application-specific key-distribution techniques consider the effects of noise
and errors while encrypting and decrypting the message. Opportunistic encryption
protocol [17] is based on addressing the trade-off between security and throughput
during the encryption/decryption of data packets. e “opportunistic encryption”
technique adapted by this protocol best utilizes the communication channel for the
duration of relatively high signal-to-noise ratio (SNR) levels. is protocol assumes
that an average of half the original message is affected by the malicious nodes.
is necessitates two cipher texts that reduce the complexity of key management.
Within a given time interva
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