Wireless Network Security: Vulnerabilities, Threats and Countermeasures
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Our goal is to provide privacy and integrity to the data, to authenticate the sender, to prevent replay attacks and to prevent traffic analysis; consequently, the entire communication is encrypted (with one exception which will be explained). All communications consist of a preamble, header and payload. The format of all communications (sensor nodes and the base station) consist of a preamble, header and payload. The preamble is empty if the communication originates from the base station and is directed to a sensor, otherwise it contains the address of the sending node. The header contains the recipient’s address, nonce and a command and is encrypted under...
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