| Co-Investigator(Kenkyū-buntansha) |
小川 朋宏 電気通信大学, 情報システム学研究科, 准教授 (00323527)
松本 隆太郎 東京工業大学, 理工学研究科, 准教授 (10334517)
石坂 智 広島大学, 総合科学研究科, 教授 (10443631)
小柴 健史 埼玉大学, 理工学研究科, 准教授 (60400800)
西村 治道 名古屋大学, 情報科学研究科, 准教授 (70433323)
渡辺 峻 徳島大学, ソシオテクノサイエンス研究部, 助教 (70546910)
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| Budget Amount *help |
¥48,620,000 (Direct Cost: ¥37,400,000、Indirect Cost: ¥11,220,000)
Fiscal Year 2015: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2014: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2013: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2012: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2011: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
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| Outline of Final Research Achievements |
We have studied quantum communication technology on a multi-user network. Especially, we have studied the information theoretic security based on quantum communication technology because its realization is not easy for existing communication technology. The information theoretic security is usually realized by privacy amplification based on a code. We have clarified the effect by the finiteness of the length of the code while it had not been studied sufficiently. Further, we have investigated the blind computation based on quantum communication, which enables the client to ask the server the difficult computation without informing the server the knowledge of the request, whose security can be guaranteed information theoretically. We have derived the formula for guaranteeing the correctness of the computation result with a given significance level.
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