Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Masaya Yasuda"'
Publikováno v:
Discrete Applied Mathematics. 318:69-81
Autor:
Nariaki Tateiwa, Yuji Shinano, Masaya Yasuda, Shizuo Kaji, Keiichiro Yamamura, Katsuki Fujisawa
Publikováno v:
Japan Journal of Industrial and Applied Mathematics.
Autor:
Masaya Yasuda, Satoshi Nakamura
Publikováno v:
Discrete Applied Mathematics. 304:220-229
Lattice problems are algorithmic problems for lattices, whose hardness assures the security of lattice-based cryptography. Given a basis of a lattice, the goal of lattice basis reduction is to seek a new basis of the same lattice whose basis vectors
Publikováno v:
Commentarii mathematici Universitatis Sancti Pauli = Rikkyo Daigaku sugaku zasshi. 68:93-130
Autor:
Yasuhiko Ikematsu, Momonari Kudo, Yasushi Takahashi, Masaya Yasuda, Kazuhiro Yokoyama, Ryoya Fukasaku
Publikováno v:
Journal of Mathematical Cryptology, Vol 15, Iss 1, Pp 31-44 (2020)
Recently, supersingular isogeny cryptosystems have received attention as a candidate of post-quantum cryptography (PQC). Their security relies on the hardness of solving isogeny problems over supersingular elliptic curves. The meet-in-the-middle appr
Publikováno v:
Journal of Mathematical Cryptology, Vol 14, Iss 1, Pp 460-485 (2020)
Since Semaev introduced summation polynomials in 2004, a number of studies have been devoted to improving the index calculus method for solving the elliptic curve discrete logarithm problem (ECDLP) with better complexity than generic methods such as
Publikováno v:
Information Security Journal: A Global Perspective. 30:219-234
As widespread development of biometrics, concerns about security and privacy are rapidly increasing. Secure matrix computation is one of the most fundamental and useful operations for statistical a...
Autor:
Masaya Yasuda
Publikováno v:
Journal of Mathematical Cryptology, Vol 14, Iss 1, Pp 84-94 (2020)
In recent years, the block Korkine-Zolotarev (BKZ) and its variants such as BKZ 2.0 have been used as de facto algorithms to estimate the security of a lattice-based cryptosystem. In 2017, DeepBKZ was proposed as a mathematical improvement of BKZ, wh
Publikováno v:
Designs, Codes and Cryptography. 88:2077-2100
Lattice basis reduction is a mandatory tool for solving lattice problems such as the shortest vector problem. The Lenstra–Lenstra–Lovasz reduction algorithm (LLL) is the most famous, and its typical improvements are the block Korkine–Zolotarev
Autor:
Pradeep Kumar Mishra, Koha Kinjo, Satoshi Nakamura, Dung Hoang Duong, Huy Quoc Le, Masaya Yasuda
Publikováno v:
IET Information Security. 14:286-303
The modulus switching technique has been used in some cryptographic applications as well as in cryptanalysis. For cryptanalysis against the learning with errors (LWE) problem and the learning with rounding (LWR) problem, it seems that one does not kn