A Real-Time Hardware Intrusion Detection System and a Classifying Features Algorithm

Abstract Nowadays, everybody needs to secure his/her activities. Existing levels of cyber-criminals need technology for detecting malicious activity. This work proposes a real-time Hardware IDS implemented on FPGA and an algorithm for classifying features from network traffic through the network interface card (NIC). It minimizes search time for extracting statistical features from connection records stored in connection queues to memory references. Therefore, it can detect most internal and external network attacks. A decision tree classifier is used as an inference engine and gives a high detection rate of 99.93%.