Study of physical attack model against post-quantum cryptography
Outline of Research
We will proceed with research on cryptographic security evaluation in the real-world environment. First, we evaluate the security against modern cryptography when using a quantum computer that is not ideal. In particular, we propose a circuit construction that solves the prime factorization and the discrete logarithm problem when there is a quantum error, and the number of qubits is limited. Furthermore, we evaluate the security of post-quantum cryptography, including lattice-based cryptography under attacks based on side-channel information. In particular, many tricks in the implementation are taken to speed up the decryption/signature, but its security is not always clear. We will investigate its resistance to side-channel attacks.
Faculty of Engineering, Information and Systems, University of Tsukuba
Naoyuki ShinoharaResearch Manager
National Institute of Information and Communications Technology
Institute of Mathematics for Industry, Kyushu University
Graduate School of Information Science and Technology, University of Tokyo