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Developement research into the visual secret sharing (visual cryptography) that uses laser speckles

Research Project

Project/Area Number 26540054
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Information security
Research InstitutionIbaraki University

Principal Investigator

Uno Katsuhiro  茨城大学, 工学部, 准教授 (10280710)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords視覚復号型秘密分散法 / 視覚復号型暗号法 / スペックル / ランダムグリッド / 視覚復号型暗号 / スペックルパターン / 秘密分散
Outline of Final Research Achievements

We used for the first time the speckle pattern created by the scattered laser beam from rough surfaces in order to perform the visual secret sharing that is cryptography method of hiding a secret image by stacking two meaningless random pattern, which is alternative material for random grid pattern. Segmentation and binarization of the speckle pattern was performed for making one share embedding secret image. Reconstruction of the secret image was successfully achieved by the product between the share and the original speckle pattern. This means that it is able to decode the secret image by irradiating directly the speckle pattern into the share.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (2 results)

All 2016 2015

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Visual Cryptography by Speckle Pattern Illumination2016

    • Author(s)
      鵜野 克宏、Hoang Hoa Tien Dung
    • Journal Title

      Journal of the Institute of Industrial Applications Engineers

      Volume: 4 Issue: 1 Pages: 26-32

    • DOI

      10.12792/jiiae.4.26

    • NAID

      40020893115

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Visual Secret Sharing by Speckle Pattern Illumination2015

    • Author(s)
      鵜野 克宏、Hoang Hoa Tien Dung
    • Organizer
      International Conference on Intelligent Systems and Image Processing
    • Place of Presentation
      福岡大学
    • Year and Date
      2015-09-02
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research

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Published: 2014-04-04   Modified: 2017-05-10  

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