Presentation	2007-07-19 A random number generation method with a variable degree of safety and its analysis Yasuyuki TANAKA, Harutaka ISHIZU, Naohiko MORI,
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Abstract(in English)	In this report, a method for generating a random number sequence, which we call a mixture random number sequence, by mixing a pseudo-random number sequence with true random numbers is shown, and its degree of safety is analyzed. The analysis shows that the mixture random number sequence has a higher degree of safety than that of the pseudo-random number sequence used, and that the degree of safety gets higher as more bits of true random numbers are mixed. We analyze the presented scheme under a new security definition called "NBT-MAX,"which is based on the conventional notion of NBT (Next-Bit Test).
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Paper #	ISEC2007-20,SITE2007-14
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Committee	ISEC
Conference Date	2007/7/12(1days)
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Registration To	Information Security (ISEC)
Language	JPN
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Title (in English)	A random number generation method with a variable degree of safety and its analysis
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1st Author's Name	Yasuyuki TANAKA
1st Author's Affiliation	NTT Communications Corporation()
2nd Author's Name	Harutaka ISHIZU
2nd Author's Affiliation	NTT Communications Corporation
3rd Author's Name	Naohiko MORI
3rd Author's Affiliation	NTT Communications Corporation
Date	2007-07-19
Paper #	ISEC2007-20,SITE2007-14
Volume (vol)	vol.107
Number (no)	140
Page	pp.pp.-
#Pages	6
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