Note: For theses with mark [+], the title is an unofficial translation by Koji Nuida (not by the author of the thesis him/herself) from the official Japanese version.
For students indicated by *
, the official supervisor in document has changed since FY 2021 due to my moving to Kyushu University.
On Lower Bounds and Size Reduction for Correlated Randomness in Secure Two-party Computation
Efficient Construction of Secure Multiparty Computation Realizing Practical Functionality
Tight Security Proofs for Key Encapsulation Mechanism in Multi-User Setting and Improvements of Isogeny Computation on Elliptic Curves
Implementation and Efficiency Improvement for Public Key Encryption Scheme Based on Indeterminate Equation
Realizing Homomorphic Functionality for Public Key Encryption Scheme Based on Hardness of Indeterminate Equation
Security Analysis of New Classes of Weak Keys in QC-MDPC Cryptosystems
Improvements of Secure Multiparty Computation for Floating-Point Division and Square Root over Secret Sharing
Extension of Operations and Security for Keyed-Homomorphic Encryption
Computational Irrelevancy in the Security of Multiparty Protocols and a Generalisation of IND-CPA Security
Efficiency Improvements of Secure Multiparty Computation over Secret Sharing and Its Application
Construction of Keyed Two-Level Homomorphic Encryption and Application of Secure Multiparty Computation to Prediction by Machine Learning
Theory and Experiment for Weak Instances in Cryptography
Halt Properties and Complexity Evaluations for Optimal DeepLLL Algorithm Families
An Improvement of a Key Exchange Protocol Relying on Polynomial Maps
Improvement of an Algebraic Approach for the Isogeny Problem
Improvement of Secure Multiparty Computation for Floating-Point Numbers over Secret Sharing
Security Evaluation for a Public Key Cryptosystem Based on Mersenne Primes
Numerical Calculation Using Fully Homomorphic Encryption for Floating-Point Arithmetic