| Project/Area Number |
24K20733
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 60010:Theory of informatics-related
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
リュウ フカン 東京工業大学, 工学院, 助教 (30883178)
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| Project Period (FY) |
2024-04-01 – 2026-03-31
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| Project Status |
Granted (Fiscal Year 2024)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2025: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2024: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | cryptanalysis / algebraic attack / large finite field / symmetric-key primitives / post-quantum security |
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| Outline of Research at the Start |
In this research, we aim to develop novel cryptanalysis techniques to understand the security of new symmetric-key primitives designed for advanced public-key techniques like secure multiparty computation (MPC), fully homomorphic encryption (FHE), and zero-knowledge proof systems (ZKP). In particular, we are interested in 1) how to access the security of ciphers using partial nonlinear layers, 2) how to understand the security of randomized symmetric-key primitives, and 3) how to develop new algebraic attacks over large finite fields.
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