作者: Sasa Mrdovic , Branislava Drazenovic , None
DOI: 10.1007/978-3-642-14215-4_10
关键词:
摘要: Since most current network attacks happen at the application layer, analysis of packet payload is necessary for their detection. Unfortunately malicious packets may be crafted to mimic normal payload, and so avoid detection if anomaly method known. This paper proposes keyed NIDS. Model key dependent. Key different each implementation kept secret. Therefore model secret although public. prevents mimicry attacks. Payload partitioned into words. Words are defined by delimiters. Set delimiters plays a role key. Proposed design implemented tested. Testing with HTTP traffic confirmed same capabilities keys.