入力コマンド連鎖の出現頻度に基づく個人認証手法の提案

概要

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Most computer systems provide an authentication mechanism based on a user identification number and a password. In such systems, if a cracker can steal a user's password, there is no way to protect computer systems. The cracker may lead the computer systems from a normal state to an abnormal state. We propose an algorithm for intrusion detection. Normally, it is observed that users exhibit regularities in their input commands. We considered a method of characterizing users' behavior. This method is based on the frequency of command sequences. The behavior of the cracker might deviate from the peculiar behavior of each user. We tested intrusion detection using users' command sequences. As a result, we sound that each users' behavior is unique and this algorithm is effective. We think it is possible to reinforce the computer security with this new algorithm
福井大学の論文
2006-03-31