Packet filtering allows a network gateway to control the network traffic flows and protect the computer system. Most of the recent research works on the filtering systems mainly concern the performance, reliability and defence against common network attacks. However, since the gateway might be controlled by red an untrusted attacker, who might try to infer the identity privacy of the sender host and mount IP tracking to its data packets. IP spoofing is another problem. To avoid data packets to be filtered in the packet filtering system, the malicious sender host might use a spoofed source IP address. Therefore, to preserve the source IP privacy and provide source IP authentication simultaneously in the filtering system is an interesting and challenging problem. To deal with the problem, we construct a data packet filtering scheme, which is formally proved to be semantic secure against the chosen IP attack and IP guessing attack. Based on this filtering scheme, we propose the first privacy-preserving packet filtering system, where the data packets whose source IP addresses are at risk are filtered, the privacy of the source IP is protected and its correctness can be verified by the recipient host. The analysis shows that our protocol can fulfil the objectives of a data packet filtering system. The performance evaluation demonstrates its applicability in the current network systems. We also presented a packet filtering scheme, where the data packets from one subnet can be filtered with only one filter policy.
Wireless Personal Communications – Springer Journals
Published: Feb 25, 2017
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