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In mission-critical networks, command, alerts, and critical data are frequently broadcast over wireless networks. Broadcast traffic must be protected from malicious attacks, wherein sources are impersonated or broadcast packets are forged. Even though broadcast authentication eliminates such attacks, attackers can still launch Denial-of-Service attacks by injecting substantive false packets, which consume both communication and computation resources. Due to inevitable proliferation of duplicates of broadcast packets, it is especially important to limit false packet propagation range.
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