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PROBABILISTIC PACKET MARKING FOR LARGE-SCALE IP TRACE BACK

An approach to IP traces back based on the probabilistic packet marking paradigm. Our approach, which we call randomize-and-link, uses large checksum cords to “link” message fragments in a way that is highly scalable, for the checksums serve both as associative addresses and data integrity verifiers. The main advantage of these checksum cords is that they spread the addresses of possible router messages across a spectrum that is too large for the attacker to easily create messages that collide with legitimate messages.



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