2 citations · 7 across the 10 of their papers we have counts for
11 papers
Adaptive Coding for Two-Way Wiretap Channels with One-Sided Strong Secrecy
Masahito Hayashi, Yanling Chen
We study a discrete memoryless two-way wiretap channel under strong one-sided secrecy, where User 1's message is confidential and User 2's message is not required to be secret. We…
Two-Way Wiretap Channel under Mixed Secrecy Constraint
Yanling Chen, Masahito Hayashi
This paper studies the two-way wiretap channel (TW-WC) with an external eavesdropper under strong one-sided (mixed) secrecy: only User~1's message is required to be secure from the…
Application of -order Information Metrics for Secure Communication in Quantum Physical Layer Design
Masahito Hayashi, Angeles Vázquez-Castro
Quantum physical layer security protocols offer significant advantages, particularly in space communications, but their achievable secrecy rates are often limited to the asymptotic…
Heisenberg scaling based on population coding
Masahito Hayashi
We study Heisenberg scaling of quantum metrology in the viewpoint of population coding. Although Fisher information has been used for a figure of merit to characterize Heisenberg s…
Adaptive Coding for Two-Way Wiretap Channel under Strong Secrecy
Yanling Chen, Masahito Hayashi
This paper studies adaptive coding for the two-way wiretap channel. Especially, the strong secrecy metric is of our interest that is defined by the information leakage of transmitt…
Measuring quantum relative entropy with finite-size effect
Masahito Hayashi
We study the estimation of relative entropy when is known. We show that the Cramér-Rao type bound equals the relative varentropy. Our estimator attains the Cramér-Rao…
Entanglement measures for detectability
Masahito Hayashi, Yuki Ito
We propose new entanglement measures as the detection performance based on the hypothesis testing setting. We clarify how our measures work for detecting an entangled state by exte…
Asymmetry activation and its relation to coherence under permutation operation
Masahito Hayashi
A Dicke state and its decohered state are invariant for permutation. However, when another qubits state to each of them is attached, the whole state is not invariant for permutatio…
Secure network coding with adaptive and active attack
Masahito Hayashi
Ning Cai and the author jointly studied secure network codes over adaptive and active attacks, which were rarely studied until these seminal papers. This paper reviews the result f…
Covert communication with Gaussian noise: from random access channel to point-to-point channel
Masahito Hayashi, Angeles Vazquez-Castro
We propose a covert communication protocol for the spread-spectrum multiple random access with additive white Gaussian noise (AWGN) channel. No existing paper has studied covert co…
Non-Adaptive Coding for Two-Way Wiretap Channel with or without Cost Constraints
Masahito Hayashi, Yanling Chen
This paper studies the secrecy results for the two-way wiretap channel (TW-WC) with an external eavesdropper under a strong secrecy metric. Employing non-adaptive coding, we analyz…