| Budget Amount *help |
¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
In this research project, we proposed several algorithms to recover the whole secret key when secret key sequences with noise are obtained. We studied the situation where the erasure and error occurred to the correct secret key and proposed an algorithm to achieve the theoretical bound. Furthermore, we conducted a study on the situation that analog values can be obtained by physical observation. We proposed four algorithms according to the knowledge of the probability distribution followed by observed values. We then proposed an efficient algorithm without prior knowledge by combining with the EM algorithm. In both cases, we conducted numerical experiments and confirmed the effectiveness of the proposed algorithms.
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