Presentation 2014-03-07
On Constructions of Secret Sharing System Realizing Perfect Privacy via a Physical RNG and Integrity via Hash Values
Miki HOSAKA, Yasushi TAKAMI, Tokutaro YOSHIDA,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) When one treats confidential data such as personal information on a life log or an office information system, fulfilling "security triad", namely, Confidentiality, Integrity, and Availability, is an important issue. Secret sharing systems divide an electronic file into some fragment files, each of which has no information about the original file, and it realizes distributed storages under high confidentiality and availability. However, there are still two problems in most current systems: 1. they use pseudorandom number by computation when creating fragment files, 2. the risk of the falsification on fragment files exists depending on the storage environments. In order to solve these problems, we will discuss secret sharing systems which totally use physical random number generator instead of pseudorandom, and the falsification-detection method using hash values.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Secret sharing system / Alteration detection / Hash function
Paper # LOIS2013-61
Date of Issue

Conference Information
Committee LOIS
Conference Date 2014/2/28(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Life Intelligence and Office Information Systems (LOIS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On Constructions of Secret Sharing System Realizing Perfect Privacy via a Physical RNG and Integrity via Hash Values
Sub Title (in English)
Keyword(1) Secret sharing system
Keyword(2) Alteration detection
Keyword(3) Hash function
1st Author's Name Miki HOSAKA
1st Author's Affiliation NTT Secure Platform Laboratories()
2nd Author's Name Yasushi TAKAMI
2nd Author's Affiliation NTT Secure Platform Laboratories
3rd Author's Name Tokutaro YOSHIDA
3rd Author's Affiliation NTT Secure Platform Laboratories
Date 2014-03-07
Paper # LOIS2013-61
Volume (vol) vol.113
Number (no) 479
Page pp.pp.-
#Pages 6
Date of Issue