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In this paper we describe the design consideration and implementation of flow cache architecture based on IXP2400 network processor in SCUT. Network traffic collection provides real world data for further performance analysis and that therefore make it very important for network management and monitoring. However, the design of such a high performance system with efficient flow cache data structure...
In this paper we describe the design consideration and implementation of portscan detection module regarding to TCP analyzing of SCUT NIDS. The aim of the portscan module is to take immediate action in response to alerts generated by SCUT NIDS to protect the system from portscan attacks. Portscan module is required to maintain TCP connection records, the design of such a connection table is not trivial...
In many applications and protocols, the number of usable characters is limited. Base64 or other similar algorithms are widely used to encode the binary data into a printable representation. But base64 itself can??t compress data, contrarily, it inflates the binary data by 33%. This paper presents a lossless base 62 compressed encoding method that only use alphanumeric characters to represent the original...
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