Masahito Hayashi

research

∙ 02/14/2023

Minimization on mixture family

Iterative minimization algorithms appear in various areas including mach...

0 Masahito Hayashi, et al. ∙

research

∙ 11/07/2022

Two-Server Oblivious Transfer for Quantum Messages

Oblivious transfer is considered as a cryptographic primitive task for q...

0 Masahito Hayashi, et al. ∙

research

∙ 11/04/2022

Significance improvement by randomized test in random sampling without replacement

This paper studies one-sided hypothesis testing under random sampling wi...

0 Zihao Li, et al. ∙

research

∙ 11/02/2022

Oblivious Quantum Computation and Delegated Multiparty Quantum Computation

We propose a new concept, oblivious quantum computation, which requires ...

0 Masahito Hayashi, et al. ∙

research

∙ 05/29/2022

Unified Approach to Secret Sharing and Symmetric Private Information Retrieval with Colluding Servers in Quantum Systems

This paper unifiedly addresses two kinds of key quantum secure tasks, i....

0 Masahito Hayashi, et al. ∙

research

∙ 01/17/2022

Commitment capacity of classical-quantum channels

We study commitment scheme for classical-quantum channels. To accomplish...

0 Masahito Hayashi, et al. ∙

research

∙ 01/07/2022

Analytical calculation formulas for capacities of classical and classical-quantum channels

We derive an analytical calculation formula for the channel capacity of ...

0 Masahito Hayashi, et al. ∙

research

∙ 01/07/2022

Bregman divergence based em algorithm and its application to classical and quantum rate distortion theory

We formulate em algorithm in the framework of Bregman divergence, which ...

0 Masahito Hayashi, et al. ∙

research

∙ 12/30/2021

Quantum secure direct communication with private dense coding using general preshared quantum state

We study quantum secure direct communication by using a general preshare...

0 Jiawei Wu, et al. ∙

research

∙ 06/28/2021

On the Capacity of Quantum Private Information Retrieval from MDS-Coded and Colluding Servers

In quantum private information retrieval (QPIR), a user retrieves a clas...

0 Matteo Allaix, et al. ∙

research

∙ 05/30/2021

Computation-aided classical-quantum multiple access to boost network communication speeds

A multiple access channel (MAC) consists of multiple senders simultaneou...

0 Masahito Hayashi, et al. ∙

research

∙ 03/22/2021

Secure list decoding and its application to bit-string commitment

We propose a new concept of secure list decoding, which is related to bi...

0 Masahito Hayashi, et al. ∙

research

∙ 01/27/2021

Equivalence of Non-Perfect Secret Sharing and Symmetric Private Information Retrieval with General Access Structure

We study the equivalence between non-perfect secret sharing (NSS) and sy...

0 Seunghoan Song, et al. ∙

research

∙ 01/22/2021

Quantum Private Information Retrieval for Quantum Messages

Quantum private information retrieval (QPIR) for quantum messages is the...

0 Seunghoan Song, et al. ∙

research

∙ 11/12/2020

When are Adaptive Strategies in Asymptotic Quantum Channel Discrimination Useful?

We present a broad investigation of asymptotic binary hypothesis testing...

0 Farzin Salek, et al. ∙

research

∙ 11/01/2020

Universal classical-quantum superposition coding and universal classical-quantum multiple access channel coding

We derive universal classical-quantum superposition coding and universal...

0 Masahito Hayashi, et al. ∙

research

∙ 03/30/2020

Single-Shot Secure Quantum Network Coding for General Multiple Unicast Network with Free One-Way Public Communication

It is natural in a quantum network system that multiple users intend to ...

0 Go Kato, et al. ∙

research

∙ 03/27/2020

Asymptotically Secure Network Code for Active Attacks and its Application to Network Quantum Key Distribution

When there exists a malicious attacker in the network, we need to be car...

0 Masahito Hayashi, et al. ∙

research

∙ 03/27/2020

Secure network code over one-hop relay network

When there exists a malicious attacker in the network, we need to consid...

0 Masahito Hayashi, et al. ∙

research

∙ 03/26/2020

Reduction Theorem for Secrecy over Linear Network Code for Active Attacks

We discuss the effect of sequential error injection on information leaka...

0 Masahito Hayashi, et al. ∙

research

∙ 02/27/2020

Finite Block Length Analysis on Quantum Coherence Distillation and Incoherent Randomness Extraction

We introduce a variant of randomness extraction framework in the context...

0 Masahito Hayashi, et al. ∙

research

∙ 01/13/2020

Capacity of Quantum Private Information Retrieval with Colluding Servers

Quantum private information retrieval (QPIR) is a protocol that a user r...

0 Seunghoan Song, et al. ∙

research

∙ 01/07/2020

Permutation Enhances Classical Communication Assisted by Entangled States

We give a capacity formula for the classical communication over a noisy ...

0 Kun Wang, et al. ∙

research

∙ 12/31/2019

Physical Layer Security Protocol for Poisson Channels for Passive Man-in-the-middle Attack

In this work, we focus on the classical optical channel having Poissonia...

0 Masahito Hayashi, et al. ∙

research

∙ 11/19/2019

Two-Way Physical Layer Security Protocol for Gaussian Channels

In this paper we propose a two-way protocol of physical layer security u...

0 Masahito Hayashi, et al. ∙

research

∙ 10/14/2019

Verifiable Quantum Secure Modulo Summation

We propose a new cryptographic task, which we call verifiable quantum se...

0 Masahito Hayashi, et al. ∙

research

∙ 08/11/2019

Quantifying Time-Varying Sources in Magnetoencephalography – A Discrete Approach

We study the distribution of brain source from the most advanced brain i...

0 Zhigang Yao, et al. ∙

research

∙ 04/17/2019

Compute-and-forward relaying with LDPC codes over QPSK scheme

In this paper, we study a compute-and-forward (CAF) relaying scheme with...

0 Satoshi Takabe, et al. ∙

research

∙ 03/29/2019

Capacity of Quantum Private Information Retrieval with Collusion of All But One of Servers

Quantum private information retrieval (QPIR) is the problem to retrieve ...

0 Seunghoan Song, et al. ∙

research

∙ 03/25/2019

Capacity of Quantum Private Information Retrieval with Multiple Servers

We consider the capacity of quantum private information retrieval (QPIR)...

0 Seunghoan Song, et al. ∙

research

∙ 01/16/2019

Asymptotic Analysis on LDPC-BICM Scheme for Compute-and-Forward Relaying

The compute-and-forward (CAF) scheme has attracted great interests due t...

0 Satoshi Takabe, et al. ∙

research

∙ 01/09/2019

Secure list decoding

In this paper, we propose a new concept of secure list decoding. While t...

0 Masahito Hayashi, et al. ∙

research

∙ 12/28/2018

Secure Modulo Sum via Multiple Access Channel

We discuss secure computation of modular sum when multiple access channe...

0 Masahito Hayashi, et al. ∙

research

∙ 12/01/2018

Secure physical layer network coding versus secure network coding

Secure network coding realizes the secrecy of the message when the messa...

0 Masahito Hayashi, et al. ∙

research

∙ 11/01/2018

Semi-Finite Length Analysis for Information Theoretic Tasks

We focus on the optimal value for various information-theoretical tasks....

0 Masahito Hayashi, et al. ∙

research

∙ 07/03/2018

Asymptotic Analysis of Spatial Coupling Coding for Compute-and-Forward Relaying

Compute-and-forward (CAF) relaying is effective to increase bandwidth ef...

0 Satoshi Takabe, et al. ∙

research

∙ 05/16/2018

Accuracy-Privacy Trade-off in Analyzing Randomized Responses

We consider the problem of analyzing a global property of private data, ...

0 Yuuya Yoshida, et al. ∙

research

∙ 04/28/2018

Secure Computation-and-Forward with Linear Codes

We discuss secure transmission via an untrusted relay when we have a mul...

0 Masahito Hayashi, et al. ∙

research

∙ 03/30/2018

Local Equivalence Problem in Hidden Markov Model

In the hidden Markovian process, there is a possibility that two differe...

0 Masahito Hayashi, et al. ∙

research

∙ 03/02/2018

Physical Layer Security for RF Satellite Channels in the Finite-length Regime

Secure communications is becoming increasingly relevant in the developme...

0 Angeles Vazquez-Castro, et al. ∙

research

∙ 01/19/2018

Asymptotic Analysis on Spatial Coupling Coding for Two-Way Relay Channels

Compute-and-forward relaying is effective to increase bandwidth efficien...

0 Satoshi Takabe, et al. ∙

research

∙ 01/03/2018

Secure communication over fully quantum Gel'fand-Pinsker wiretap channel

In this work we study the problem of secure communication over a fully q...

0 Anurag Anshu, et al. ∙

research

∙ 12/25/2017

Secure Network Code for Adaptive and Active Attacks with No-Randomness in Intermediate Nodes

We analyze the security for network code when the eavesdropper can conta...

0 Ning Cai, et al. ∙

Masahito Hayashi

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