Intrusion Detection System Using Discrete Fourier Transform with Window Function

Abstract

An Intrusion Detection System (IDS) is

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“…Note that, because Sato method uses human decisions, comparison by the same conditions is impossible. Detailed comparisons with other methods are shown in [14] and [15], and our advantage in detection rate could be confirmed.…”

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“…And where W han (•) denote Hanning window function. The analysis shown in [14] concludes Hanning window function is optimal for this scheme [7]. As already shown above, the standard spectrum is the average spectrum among ordinary spectrums.…”

“…Therefore, the table shows the threshold of the value of entropy between ordinal and malicious with probability. Our prototype method [14] is not quantifi Therefore, it is quite primitive but it is powerful for detecting. This method classifies the communication situation into following three types.…”

“…-one server -with various payload size session" in our observations. Our prototype method [14] is not quantified but is based on visual identification for detecting.…”

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“…Our method [14] [15] uses discrete Fourier transform (DFT). Note that there are some mistakes and typos in [15], so we correct them in this paper.In addition, our method does not follow the strict definition, but we are paying attention to experimentally confirmed advantage.…”