| 研究実績の概要 |
In lattice cryptography, we have obtained some improvements in matrix multiplications over Ring-LWE Homomorphic Encryption.
Some results on multiplying matrices with real entries are also obtained and will be submitted for publication in near future. In addition, we investigated the lattice subfield attack against overstretched NTRU and gave better parameters choice for the attack.
In multivariate cryptography, we revisited the Extension Field Cancellation Scheme and derive a better key generation for the scheme which is much better than the original one. This result will be published soon at ACISP 2018.
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