Security Analysis on the Proactivized System against Latent Virus Attacks (特集 情報セキュリティの理論と応用)
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概要
- 論文の詳細を見る
The notion of proactive security of basic primitives and cryptosystems was introduced in order to tolerate a very strong "mobile adversary." However, even though proactive maintenance is employed, it is a hard problem to detect the viruses which are skillfully developed and latent in the memory of servers. We introduce a new type of virus attacks, called latent virus attack, in which viruses reside in the intruded server and wait for the chance for viruses colluding with each other to intrude more than the threshold of servers. The main subject of this paper is to analyze the resilience of proactive system against latent virus attacks and present how to enhance the security against such virus attacks. At first, the robustness of proactivized systems against this attack is estimated by probabilistic analysis. Next, in order to enhance the resilience against such virus attacks, we introduce active rebooting aproach, in which the reboot procedure on a predetermined number of servers is perfomed in the total independence of servers being infected or not. The effectiveness is also evaluated. As far as we know, this work is the first proposal for enhancing the robustness of proactive system against latent virus attacks.
- 一般社団法人情報処理学会の論文
- 2000-08-15
著者
-
Imai Hideki
Institute Of Industrial Science Interfaculty Initiative For Information Studies University Of Tokyo
-
WATANABE YUJI
Institute of Industrial Science, University of Tokyo
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Watanabe Yuji
Institute Of Industrial Science University Of Tokyo
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