| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Outline of Final Research Achievements |
In this project, we developed security evaluation methods in trust infrastructure from the viewpoints of both engineering and economics based on advanced but harmonized adversarial models. As planned, we obtained many implications for blockchain applications. In particular, as a generic implication related to all of the research items in this project, we found that the randomness source (e.g. a nonce in a DL-based digital signature) can be used for an adaptive stochastic process in the economic token models. In addition, it can be used as a Proof-of-Verification (PoV) which shows that someone certainly verified and validated the newly reported block. PoV is currently studied in a subsequent project on energy-efficient implementation of public blockchains towards better social acceptability.
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