Presentation	2011/7/5 Proposal of Encryption Level Classification method based on Randomness of Communication Data TOMOHIRO SHIGEMOTO, TETSURO KITO, HIROFUMI NAKAKOJI, SATOSHI KAI,
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Abstract(in English)	This paper proposes a criterion of Encryption Level focusing on ranges of encryption, as a basis for designing a policy which specifies the degree of protection of communication data. Then, this paper also proposes an Encryption Level classification method by computing randomness of communication data. This method is based on observation that randomness of packet payloads in encrypted traffic is much higher than that in plain traffic, and therefore the method is application agnostic. Evaluation experiments using real traffic data shows the effectiveness of the proposed method.
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Committee	SITE
Conference Date	2011/7/5(1days)
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Registration To	Social Implications of Technology and Information Ethics (SITE)
Language	JPN
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Title (in English)	Proposal of Encryption Level Classification method based on Randomness of Communication Data
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1st Author's Name	TOMOHIRO SHIGEMOTO
1st Author's Affiliation	Hitachi Ltd.()
2nd Author's Name	TETSURO KITO
2nd Author's Affiliation	Hitachi Ltd.
3rd Author's Name	HIROFUMI NAKAKOJI
3rd Author's Affiliation	Hitachi Ltd.
4th Author's Name	SATOSHI KAI
4th Author's Affiliation	Hitachi Ltd.
Date	2011/7/5
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Volume (vol)	vol.111
Number (no)	124
Page	pp.pp.-
#Pages	7
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