Hirosuke YAMAMOTO


A Cheating-Detectable (k, L, n) Ramp Secret Sharing Scheme
Wataru NAKAMURA Hirosuke YAMAMOTO Terence CHAN 
Publication:   
Publication Date: 2017/12/01
Vol. E100-A  No. 12  pp. 2709-2719
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Cryptography and Information Security
Keyword: 
ramp secret sharing schemescheating detectionimpersonation attackssubstitution attacksmutual information of shares
 Summary | Full Text:PDF(1.1MB)

Posterior Matching for Gaussian Broadcast Channels with Feedback
Lan V. TRUONG Hirosuke YAMAMOTO 
Publication:   
Publication Date: 2017/05/01
Vol. E100-A  No. 5  pp. 1165-1178
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
Gaussian broadcast channel with feedbackfeedbackposterior matchingiterated function systems
 Summary | Full Text:PDF(774.8KB)

Direct- or Fast-Access Decoding Schemes for VF Codes
Hirosuke YAMAMOTO Yuka KUWAORI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/12/01
Vol. E99-A  No. 12  pp. 2291-2295
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Source Coding and Data Compression
Keyword: 
VF codedirect-access decodingrank functionselect function
 Summary | Full Text:PDF(98.1KB)

On the Hardness of Subset Sum Problem from Different Intervals
Jun KOGURE Noboru KUNIHIRO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/05/01
Vol. E95-A  No. 5  pp. 903-908
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
subset sum problemknapsack problemlow-density attacklattice reduction
 Summary | Full Text:PDF(701.5KB)

A Randomness Test Based on T-Complexity
Kenji HAMANO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/07/01
Vol. E93-A  No. 7  pp. 1346-1354
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
T-codeT-complexityLempel-Ziv complexityNIST SP 800-22NIST statistical test suitemultiplicative congruential generator
 Summary | Full Text:PDF(9MB)

FOREWORD
Tomohiko UYEMATSU Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/10/01
Vol. E92-A  No. 10  pp. 2391-2392
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(83.1KB)

A New Randomness Test Based on Linear Complexity Profile
Kenji HAMANO Fumio SATO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/01/01
Vol. E92-A  No. 1  pp. 166-172
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Mathematics
Keyword: 
randomness testlinear complexity profileNIST SP800-22
 Summary | Full Text:PDF(247.6KB)

Strongly Secure Linear Network Coding
Kunihiko HARADA Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/10/01
Vol. E91-A  No. 10  pp. 2720-2728
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Information Theory
Keyword: 
network codingsecure network codinglinear network codingsecret sharing schemesstrong ramp secret sharing schemes
 Summary | Full Text:PDF(238.5KB)

Optimal Multiple Assignments Based on Integer Programming in Secret Sharing Schemes with General Access Structures
Mitsugu IWAMOTO Hirosuke YAMAMOTO Hirohisa OGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/01/01
Vol. E90-A  No. 1  pp. 101-112
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Protocols
Keyword: 
secret sharing schemesgeneral access structuresmultiple assignment mapinteger programmingramp schemes
 Summary | Full Text:PDF(274.9KB)

A Construction Method of Visual Secret Sharing Schemes for Plural Secret Images
Mitsugu IWAMOTO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/10/01
Vol. E86-A  No. 10  pp. 2577-2588
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Information Security
Keyword: 
visual secret sharing schemesplural secret imagesgeneral access structures
 Summary | Full Text:PDF(389.5KB)

The Optimal n-out-of-n Visual Secret Sharing Scheme for Gray-Scale Images
Mitsugu IWAMOTO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/10/01
Vol. E85-A  No. 10  pp. 2238-2247
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Information Security
Keyword: 
visual secret sharing schemegray-scale imagepolynomial representationcontrastpixel expansion
 Summary | Full Text:PDF(507.3KB)

An Analytic Construction of the Visual Secret Sharing Scheme for Color Images
Hiroki KOGA Mitsugu IWAMOTO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/01/01
Vol. E84-A  No. 1  pp. 262-272
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
secret sharingvisual secret sharingvisual cryptologygeneral access structure
 Summary | Full Text:PDF(348.5KB)

Coding Theorems for Secret-Key Authentication Systems
Hiroki KOGA Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/08/25
Vol. E83-A  No. 8  pp. 1691-1703
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
authenticationimpersonation attacksubstitution attackinformation-theoretic boundscoding theorem
 Summary | Full Text:PDF(544.6KB)

New Methods for Generating Short Addition Chains
Noboru KUNIHIRO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/01/25
Vol. E83-A  No. 1  pp. 60-67
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
addition chainhamming weightextended window methodrun-length methodhybrid method
 Summary | Full Text:PDF(430.7KB)

Asymptotic Optimality of the Block Sorting Data Compression Algorithm
Mitsuharu ARIMURA Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/10/25
Vol. E81-A  No. 10  pp. 2117-2122
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding
Keyword: 
lossless data compressionblock sorting algorithmstationary ergodic Markov sourceasymptotic optimality
 Summary | Full Text:PDF(427.8KB)

Proposal of a Lattice-Based Visual Secret Sharing Scheme for Color and Gray-Scale Images
Hiroki KOGA Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/06/25
Vol. E81-A  No. 6  pp. 1262-1269
Type of Manuscript:  PAPER
Category: Information Security
Keyword: 
secret sharingvisual secret sharingvisual cryptography
 Summary | Full Text:PDF(678KB)

Window and Extended Window Methods for Addition Chain and Addition-Subtraction Chain
Noboru KUNIHIRO Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/01/25
Vol. E81-A  No. 1  pp. 72-81
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
addition-subtraction chainTunstall codecanonical signed binary representationwindow method
 Summary | Full Text:PDF(798.7KB)

A Bitplane Tree Weighting Method for Lossless Compression of Gray Scale Images
Mitsuharu ARIMURA Hirosuke YAMAMOTO Suguru ARIMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/11/25
Vol. E80-A  No. 11  pp. 2268-2271
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Source Coding/Channel Capacity
Keyword: 
image compressionlossless compressiongray scale imageCTW method
 Summary | Full Text:PDF(326KB)

The Redundancy of Universal Coding with a Fidelity Criterion
Daiji ISHII Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/11/25
Vol. E80-A  No. 11  pp. 2225-2231
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Source Coding
Keyword: 
universal d-semifaithful coderate distortion functionrate redundancyn-typed-ball covering
 Summary | Full Text:PDF(404.1KB)

The Performance of the New Convolutional Coded ARQ Scheme for Moderately Time-Varying Channels
Hiroyuki FUJIWARA Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/03/25
Vol. E78-A  No. 3  pp. 403-411
Type of Manuscript:  PAPER
Category: Information Theory and Coding Theory
Keyword: 
time-varying channelARQconvolutional codeViterbi decodingAD/WD packet combining
 Summary | Full Text:PDF(623.5KB)

A Convolutional Coded ARQ Scheme with Retransmission Criterion Based on an Estimated Decoding Error Rate
Hiroyuki FUJIWARA Hirosuke YAMAMOTO Jinqiao REN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/01/25
Vol. E78-A  No. 1  pp. 100-110
Type of Manuscript:  PAPER
Category: Information Theory and Coding Theory
Keyword: 
ARQconvolutional codeViterbi decodingpacket combining
 Summary | Full Text:PDF(713.1KB)

On the Performance of TCM with Channel State Information in Frequency Flat Rayleigh Mobile Channels
Carlos VALDEZ Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/04/25
Vol. E77-B  No. 4  pp. 501-510
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
trellis coded modulationchannel state informationRayleigh channelChernoff boundphase ambiguitiesphase jitter
 Summary | Full Text:PDF(762.9KB)

Error Probability Analysis in Reduced State Viterbi Decoding
Carlos VALDEZ Hiroyuki FUJIWARA Ikuo OKA Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/06/25
Vol. E76-B  No. 6  pp. 667-676
Type of Manuscript:  PAPER
Category: Communication Theory
Keyword: 
reduced state decodingviterbi algorithmfeedback equalizationintersymbol interferencetrellis coded modulation
 Summary | Full Text:PDF(779.4KB)

A New Class of the Universal Representation for the Positive Integers
Takashi AMEMIYA Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/03/25
Vol. E76-A  No. 3  pp. 447-452
Type of Manuscript:  PAPER
Category: Information Theory and Coding Theory
Keyword: 
universal codeuniversal representation of the positive integersmessage length strategygrouping strategy
 Summary | Full Text:PDF(484.3KB)

Information Theory in Cryptology
Hirosuke YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/09/25
Vol. E74-A  No. 9  pp. 2456-2464
Type of Manuscript:  INVITED PAPER (Special Issue on Information Theory and Its Applications)
Category: 
Keyword: 
 Summary | Full Text:PDF(604.2KB)

Source Coding Theory for Multiterminal Communication Systems with a Remote Source
Hirosuke YAMAMOTO Kohji ITOH 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1980/10/25
Vol. E63-E  No. 10  pp. 700-706
Type of Manuscript:  PAPER
Category: Communication Theory
Keyword: 
 Summary | Full Text:PDF(372.7KB)