Koga Hiroki
- Articles
- Construction of a Strongly Secure Ramp Secret Sharing Scheme Using the MRD Code and Analysis of its Security
本庄 俊太郎; 古賀 弘樹; 坂下 光輝
IEICE technical report. Information theory/113(483)/pp.201-207, 2014-03 - Coding Theorems for Shannon's Cipher System under Two New Secrecy Criteria
菊池 駿; 古賀 弘樹
IEICE technical report. Information theory/113(483)/pp.261-268, 2014-03 - On the relationship between the redundancy and the coding rate of FF codes
有村 光晴; 古賀 弘樹; 岩田 賢一
IEICE technical report. Information theory/112(58)/pp.7-12, 2012-05 - A Secret Sharing Scheme Based on a Two-Dementional Code with Decodability by Mobile Phones
本庄 俊太郎; 古賀 弘樹
IEICE technical report. Information theory/112(58)/pp.35-40, 2012-05 - A Tracing Algorithm for the Boneh-Shaw Code under a Probabilistic Attack Model
金井 紘平; 古賀 弘樹
IEICE technical report. Information theory/112(124)/pp.7-12, 2012-07 - On Coding of a Binary Source Based on Source Polarization
菊池 駿; 古賀 弘樹
IEICE technical report. Information theory/112(124)/pp.103-108, 2012-07 - Asymptotic Optimality of Modified Spherical Codes with Scalar Quantizer of Gain for Memoryless Gaussian Source
Hiroki Koga; Suguru Arimoto
IEICE Transactions on Fundamentals/E76-A(9)/p.1403-1410, 1993-09 - On the Asynptotic Behaviors of the Recurcence Time Fidelity Criterian for Discrete Memoryless Sources and Memoryless Gaussian Sources
Hiroki Koga; Suguru Arimoto
IEICE Transactions on Fundamentels/E81-A(5)/p.981-986, 1998-06 - Proposal of a Lattice-Based Visual Seuet Sharing Scheme for Color and Gray-Scale Images (共著)
Hiroki Koga; Hirosuke Yamamoto
IEICE Transactions on Fundamentals/E81-A(6)/p.1263-1269, 1998-06 - Coding Theorem for Secret-Key Authentication Systems
Hiroki Koga; Hirosuke Yamamoto
IEICE Trans. on Fundamentals/E83-A(8)/p.1691--703, 2000-08 - An Analytic Construction of the Visual Secret Sharing Scheme for Color Images
Hiroki Koga; Mitsugu Iwamoto; Hirosuke Yamamoto
IEICE Trans. on Fundamentals,/E84-A(1)/p.pp. 262--272, 2001-01 - A Construction of a Visual Secret Sharing Scheme for Plural Secret Images and its Basic Properties
Hiroki Koga; Masayuki Miyata
Proceedings of 2008 International Symposium on Information Theory and its Applications/p.24-29, 2008-12 - Basic Properties of the Complete Complementary Codes Using DTF Matrices and the Kronecker Products
Jin Yi; Hiroki Koga
Proceedings of 2008 International Symposium on Information Theory and its Applications/p.887-892, 2008-12 - New Coding Theorems for Fixed-Length Source Coding and Shannons's Cipher System with a General Source
Hiroki Koga
Proceedings of 2008 International Symposium on Information Theory and its Applications/p.251-256, 2008-12 - Coding Theorems on the Threshold Scheme for a General Source
Hiroki Koga
IEEE Transactions on Information Theory/54(6)/p.2658-2677, 2008-06 - A Coding Theorem for Cheating-Detectable (2,2)-Threshold Blockwise Secret Sharing Schemes
M. Iwamoto; H. Yamamoto; H. Koga
Proc. 2009 IEEE International Symposium on Information Theory/p.1308--1312, 2009-06 - Coding Theorems for a (2,2)-Threshold Scheme Secure against Impersonation by an Opponent
H. Koga; M. Iwamoto; H. Yamamoto
Proc. 2009 IEEE Information Theory Workshop/(1)/p.188--192, 2009-10 - Two Generalizations of a Coding Theorem for a (2,2)-THreshold Scheme with a Cheater
Hiroki Koga
Proceedings of 2010 International Symposium on Information Theory and its Applications/p.678-683, 2010-10 - A digital Fingerprinting Code Based on a Projective Plane and Its Identifiability of all Malicious Users
Hiroki Koga; Yusuke Minami
IEICE Trans. on Fundamentals/E94-A(1)/p.223-232, 2011-01 - Coding Theorems on the Worst-Case Redundancy of Fixed-Length Coding for a General Source
Hiroki Koga; Mitsuharu Arimura; Ken-ichi Iwata
Proceedings of 2011 IEEE International Symposium on Information Theory/p.1434--1438, 2011-01 - Toward Further Developments in Information Theory
鎌部 浩; 古賀 弘樹
IEICE technical report. Information theory/111(329)/pp.25-28, 2011-11 - AS-2-6 On Construction and Optimality of a (k,n)-Threshold Scheme with Detectability of Impersonation Attacks
古賀 弘樹
Proceedings of the IEICE General Conference/2012(0)/pp.S-27-S-28, 2012-03 - Coding Theorems for a (2,2)-Threshold Scheme With Detectability of Impersonation Attacks
Iwamoto Mitsugu; Koga Hiroki; Yamamoto Hirosuke
IEEE TRANSACTIONS ON INFORMATION THEORY/58(9)/pp.6194-6206, 2012-09 - The Width of Information-Spectrum and the Worst-Case Redundancy of Fixed-Length Coding
古賀 弘樹; 有村 光晴; 岩田 賢一
電子情報通信学会技術研究報告. IT, 情報理論/110(442)/pp.93-98, 2011-02 - A (3, 3)-Threshold Scheme Secure against Ordinary and Extended Impersonation Attacks
児矢野 和也; 古賀 弘樹
電子情報通信学会技術研究報告. IT, 情報理論/110(442)/pp.311-318, 2011-02 - more...
- Construction of a Strongly Secure Ramp Secret Sharing Scheme Using the MRD Code and Analysis of its Security