IEICE Trans

Hideki IMAI

Partially Wildcarded Ciphertext-Policy Attribute-Based Encryption and Its Performance Evaluation Go OHTAKE Kazuto OGAWA Goichiro HANAOKA Shota YAMADA Kohei KASAMATSU Takashi YAMAKAWA Hideki IMAI
Publication: Publication Date: 2017/09/01 Vol. E100-A No. 9 pp. 1846-1856 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: attribute-based encryption, ciphertext policy, wildcard,
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How to Make Traitor Tracing Schemes Secure against a Content Comparison Attack in Actual Services Kazuto OGAWA Goichiro HANAOKA Hideki IMAI
Publication: Publication Date: 2017/01/01 Vol. E100-A No. 1 pp. 34-49 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: traitor tracing, collusion attack, content comparison, encoding, watermarking, c-secure code,
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On Finding Secure Domain Parameters Resistant to Cheon's Algorithm SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2015/12/01 Vol. E98-A No. 12 pp. 2456-2470 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: elliptic curve domain parameters, SDH/related problems, Cheon's algorithm,
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A Theoretical Framework for Constructing Matching Algorithms Secure against Wolf Attack Manabu INUMA Akira OTSUKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2013/02/01 Vol. E96-D No. 2 pp. 357-364 Type of Manuscript: PAPER Category: Image Recognition, Computer Vision Keyword: biometrics, wolf attack, wolf attack probability, matching algorithm, security,
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A Numerical Evaluation of Entanglement Sharing Protocols Using Quantum LDPC CSS Codes Masakazu YOSHIDA Manabu HAGIWARA Takayuki MIYADERA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2012/09/01 Vol. E95-A No. 9 pp. 1561-1569 Type of Manuscript: PAPER Category: Information Theory Keyword: entanglement distillation protocol, quantum error-correcting codes, quantum low-density parity-check codes, sum-product decoding,
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Threshold Anonymous Password-Authenticated Key Exchange Secure against Insider Attacks SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2011/11/01 Vol. E94-D No. 11 pp. 2095-2110 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Keyword: password-authenticated key exchange, passwords, on-line/off-line dictionary attacks, anonymity, insider attacks, provable security,
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Secure Broadcast System with Simultaneous Individual Messaging Arisa FUJII Go OHTAKE Goichiro HANAOKA Nuttapong ATTRAPADUNG Hajime WATANABE Kazuto OGAWA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/06/01 Vol. E94-A No. 6 pp. 1328-1337 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: digital broadcasting, copyright protection, Conditional Access System (CAS), broadcast encryption,
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Universally Composable and Statistically Secure Verifiable Secret Sharing Scheme Based on Pre-Distributed Data Rafael DOWSLEY Jorn MULLER-QUADE Akira OTSUKA Goichiro HANAOKA Hideki IMAI Anderson C.A. NASCIMENTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/02/01 Vol. E94-A No. 2 pp. 725-734 Type of Manuscript: PAPER Category: Cryptography and Information Security Keyword: verifiable secret sharing, dishonest majority, pre-distributed data, unconditional security, universal composable,
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Security Analysis of Two Augmented Password-Authenticated Key Exchange Protocols SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/11/01 Vol. E93-A No. 11 pp. 2092-2095 Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: PAKE, on-line/off-line dictionary attacks, augmented PAKE, server-compromise impersonation attacks, IEEE P1363.2 working group,
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An RSA-Based Leakage-Resilient Authenticated Key Exchange Protocol Secure against Replacement Attacks, and Its Extensions SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/06/01 Vol. E93-A No. 6 pp. 1086-1101 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Cryptography and Information Security Keyword: authenticated key exchange, passwords, on-line/off-line dictionary attacks, RSA, leakage of stored secrets, replacement attacks,
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Dual-Policy Attribute Based Encryption: Simultaneous Access Control with Ciphertext and Key Policies Nuttapong ATTRAPADUNG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/01/01 Vol. E93-A No. 1 pp. 116-125 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Secure Protocol Keyword: attribute based encryption, ciphertext policy, key policy,
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Anonymous Password-Authenticated Key Exchange: New Construction and Its Extensions SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/01/01 Vol. E93-A No. 1 pp. 102-115 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Secure Protocol Keyword: authenticated key exchange, passwords, on-line/off-line dictionary attacks, password-authenticated key exchange, anonymity, efficiency, provable security,
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Smallest Size of Circulant Matrix for Regular (3, L) and (4, L) Quasi-Cyclic LDPC Codes with Girth 6 Manabu HAGIWARA Marc P.C. FOSSORIER Takashi KITAGAWA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/11/01 Vol. E92-A No. 11 pp. 2891-2894 Type of Manuscript: PAPER Category: Coding Theory Keyword: LDPC codes, difference matrix, quasi-cyclic codes, regular LDPC codes, circulant matrix, lower bounds,
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Strong Anonymous Signature Rui ZHANG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/10/01 Vol. E92-A No. 10 pp. 2487-2491 Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: anonymous signature, strong anonymity, generic and efficient constructions,
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CCA-Secure Public Key Encryption without Group-Dependent Hash Functions Yang CUI Goichiro HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2009/05/01 Vol. E92-D No. 5 pp. 967-970 Type of Manuscript: Special Section LETTER (Special Section on Information and Communication System Security) Category: Cryptographic Techniques Keyword: CCA-secure public-key encryption, group-dependent hash,
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A Trade-off Traitor Tracing Scheme Go OHTAKE Kazuto OGAWA Goichiro HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2009/05/01 Vol. E92-D No. 5 pp. 859-875 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Contents Protection Keyword: dynamic traitor tracing, watermarking, digital rights management, content distribution,
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Combining Public Key Encryption with Keyword Search and Public Key Encryption Rui ZHANG Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2009/05/01 Vol. E92-D No. 5 pp. 888-896 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Cryptographic Techniques Keyword: PEKS, PKE, PEKS/PKE, CCA security,
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A Novel Probabilistic Passive Attack on the Protocols HB and HB⁺ Jose CARRIJO Rafael TONICELLI Hideki IMAI Anderson C.A. NASCIMENTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/02/01 Vol. E92-A No. 2 pp. 658-662 Type of Manuscript: LETTER Category: Cryptography and Information Security Keyword: authentication, protocol HB/HB⁺, cryptoanalysis,
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A New Quaternion Design for Space-Time-Polarization Block Code with Full Diversity Huanfei MA Haibin KAN Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/02/01 Vol. E92-B No. 2 pp. 671-674 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: MIMO, Space-Time block code, orthogonal design, quaternion,
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An Efficient 2-Secure and Short Random Fingerprint Code and Its Security Evaluation Koji NUIDA Satoshi FUJITSU Manabu HAGIWARA Hideki IMAI Takashi KITAGAWA Kazuto OGAWA Hajime WATANABE
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/01/01 Vol. E92-A No. 1 pp. 197-206 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Application Keyword: fingerprint, c-secure code, collusion attack, security analysis, watermark, DRM,
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Formal Security Treatments for IBE-to-Signature Transformation: Relations among Security Notions Yang CUI Eiichiro FUJISAKI Goichiro HANAOKA Hideki IMAI Rui ZHANG
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/01/01 Vol. E92-A No. 1 pp. 53-66 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Digital Signature Keyword: identity based encryption, digital signature, security notions,
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Tag-KEM from Set Partial Domain One-Way Permutations Masayuki ABE Yang CUI Hideki IMAI Kaoru KUROSAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/01/01 Vol. E92-A No. 1 pp. 42-52 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Public Key Cryptography Keyword: Tag-KEM, hybrid encryption, OAEP, SAEP,
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A Secure Construction for Threshold Anonymous Password-Authenticated Key Exchange SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/11/01 Vol. E91-A No. 11 pp. 3312-3324 Type of Manuscript: PAPER Category: Cryptography and Information Security Keyword: password authentication, key exchange, PAKE, anonymity, provable security,
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A New Security Architecture for Personal Networks and Its Performance Evaluation SeongHan SHIN Hanane FATHI Kazukuni KOBARA Neeli R. PRASAD Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/07/01 Vol. E91-B No. 7 pp. 2255-2264 Type of Manuscript: PAPER Category: Network Keyword: personal networks, leakage of stored secrets, authentication and key exchange, leakage-resilience, forward secrecy, security architecture, performance evaluation,
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Wolf Attack Probability: A Theoretical Security Measure in Biometric Authentication Systems Masashi UNE Akira OTSUKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/05/01 Vol. E91-D No. 5 pp. 1380-1389 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Biometrics Keyword: biometric authentication system, brute-force attack, finger-vein-pattern based algorithm, minutiae-matching algorithm, wolf attack probability,
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RSA-Based Password-Authenticated Key Exchange, Revisited SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/05/01 Vol. E91-D No. 5 pp. 1424-1438 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Key Management Keyword: password authentication, key exchange, RSA, on-line/off-line attacks, e-residue attacks, provable security,
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A Strongly Unforgeable Signature under the CDH Assumption without Collision Resistant Hash Functions Takahiro MATSUDA Nuttapong ATTRAPADUNG Goichiro HANAOKA Kanta MATSUURA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/05/01 Vol. E91-D No. 5 pp. 1466-1476 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Cryptographic Techniques Keyword: digital signature, strong unforgeability, target collision resistant hash function, standard model,
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Lightweight Privacy-Preserving Authentication Protocols Secure against Active Attack in an Asymmetric Way Yang CUI Kazukuni KOBARA Kanta MATSUURA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/05/01 Vol. E91-D No. 5 pp. 1457-1465 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Authentication Keyword: lightweight protocol, asymmetric authentication, privacy-preserving, active attack,
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IVs to Skip for Immunizing WEP against FMS Attack Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/01/01 Vol. E91-B No. 1 pp. 164-171 Type of Manuscript: PAPER Category: Fundamental Theories for Communications Keyword: RC4, WEP, IEEE802.11, WLAN, FMS attack,
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Invisibly Sanitizable Digital Signature Scheme Kunihiko MIYAZAKI Goichiro HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/01/01 Vol. E91-A No. 1 pp. 392-402 Type of Manuscript: PAPER Category: Cryptography and Information Security Keyword: digital signature, information disclosure, privacy issue,
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A Secure Authenticated Key Exchange Protocol for Credential Services SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/01/01 Vol. E91-A No. 1 pp. 139-149 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Protocols Keyword: password authentication, key exchange, leakage of stored secrets, roaming protocol, password-enabled PKI, credential services, provable security,
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Extension of Broadcasting Service by Using Electronic Tokens Kazuto OGAWA Goichiro HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2007/11/01 Vol. E90-D No. 11 pp. 1741-1750 Type of Manuscript: PAPER Category: Contents Technology and Web Information Systems Keyword: content distribution, token, anonymity, group signature, privacy preservation,
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Efficient Identity-Based Encryption with Tight Security Reduction Nuttapong ATTRAPADUNG Jun FURUKAWA Takeshi GOMI Goichiro HANAOKA Hideki IMAI Rui ZHANG
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/09/01 Vol. E90-A No. 9 pp. 1803-1813 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: identity based encryption, tight security reduction,
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Key-Insulated Public Key Encryption with Auxiliary Helper Key: Model, Constructions and Formal Security Proofs Thi Lan Anh PHAN Goichiro HANAOKA Kanta MATSUURA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/09/01 Vol. E90-A No. 9 pp. 1814-1829 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: key insulated public key encryption, auxiliary helper key, IND-KE-CCA,
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Birthday Paradox Based Security Analysis of Certain Broadcast Encryption Schemes Miodrag J. MIHALJEVI Marc P.C. FOSSORIER Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/06/01 Vol. E90-A No. 6 pp. 1248-1251 Type of Manuscript: LETTER Category: Information Security Keyword: conditional data access control, broadcast encryption, cryptographic key management, cryptanalysis, birthday paradox,
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Traitor Tracing Scheme Secure against Adaptive Key Exposure and its Application to Anywhere TV Service Kazuto OGAWA Goichiro HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/05/01 Vol. E90-A No. 5 pp. 1000-1011 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: traitor tracing, key exposure, key update, two variable-polynomial,
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An Efficient and Leakage-Resilient RSA-Based Authenticated Key Exchange Protocol with Tight Security Reduction SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/02/01 Vol. E90-A No. 2 pp. 474-490 Type of Manuscript: PAPER Category: Information Security Keyword: authenticated key exchange, passwords, on-line and off-line dictionary attacks, RSA, leakage of stored secrets, efficiency, perfect forward secrecy,
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Practical Broadcast Encryption from Graph-Theoretic Techniques and Subset-Incremental-Chain Structure Nuttapong ATTRAPADUNG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/01/01 Vol. E90-A No. 1 pp. 187-203 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Application Keyword: broadcast encryption, revocation scheme,
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Key-Dependent Weak IVs and Weak Keys in WEP--How to Trace Conditions Back to Their Patterns-- Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/08/01 Vol. E89-A No. 8 pp. 2198-2206 Type of Manuscript: PAPER Category: Information Security Keyword: RC4, WEP, IEEE802.11, WLAN, FMS attack,
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An Efficient Group Signature Scheme from Bilinear Maps Jun FURUKAWA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/05/01 Vol. E89-A No. 5 pp. 1328-1338 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: group signature, bilinear map, efficient,
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A Provably Secure Refreshable Partially Anonymous Token and Its Applications Rie SHIGETOMI Akira OTSUKA Jun FURUKAWA Keith MARTIN Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/05/01 Vol. E89-A No. 5 pp. 1396-1406 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: anonymous credential, refreshable tokens, anonymity, privacy protection,
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Efficient Algorithms for Tate Pairing Tetsutaro KOBAYASHI Kazumaro AOKI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/01/01 Vol. E89-A No. 1 pp. 134-143 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Elliptic Curve Cryptography Keyword: Weil pairing, Tate pairing, elliptic curve cryptosystem, fast computation,
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Security Protocols Protection Based on Anomaly Detection Abdulrahman ALHARBY Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2006/01/01 Vol. E89-D No. 1 pp. 189-200 Type of Manuscript: Special Section PAPER (Special Section on New Technologies and their Applications of the Internet III) Category: Intrusion Detection Keyword: intrusion detection, security protocols, anomaly detection, dynamic Bayesian network,
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Flaws in Robust Optimistic Mix-Nets and Stronger Security Notions Masayuki ABE Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/01/01 Vol. E89-A No. 1 pp. 99-105 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Protocol Keyword: Mix-net, anonymity, chosen-ciphertext attacks, security notion,
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Relation between the XL Algorithm and Grobner Basis Algorithms Makoto SUGITA Mitsuru KAWAZOE Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/01/01 Vol. E89-A No. 1 pp. 11-18 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Symmetric Key Cryptography Keyword: algebraic attacks, Grobner basis algorithm, F4, XL algorithm,
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How to Break COT-Based Fingerprinting Schemes and Design New One JaeGwi CHOI Goichiro HANAOKA KyungHyune RHEE Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/10/01 Vol. E88-A No. 10 pp. 2800-2807 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: fingerprinting, committed oblivious transfer protocol, two-lock cryptosystem,
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A Flexible-Revocation Scheme for Efficient Public-Key Black-Box Traitor Tracing Tatsuyuki MATSUSHITA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/04/01 Vol. E88-A No. 4 pp. 1055-1062 Type of Manuscript: PAPER Category: Information Security Keyword: public-key traitor tracing, black-box tracing, flexible revocation,
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A Simple Leakage-Resilient Authenticated Key Establishment Protocol, Its Extensions, and Applications SeongHan SHIN Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/03/01 Vol. E88-A No. 3 pp. 736-754 Type of Manuscript: PAPER Category: Information Security Keyword: entropy of passwords, on-line and off-line attacks, authentication, key establishment protocol, leakage of stored secrets, proactive security, DDH problem, standard model,
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Digitally Signed Document Sanitizing Scheme with Disclosure Condition Control Kunihiko MIYAZAKI Mitsuru IWAMURA Tsutomu MATSUMOTO Ryoichi SASAKI Hiroshi YOSHIURA Satoru TEZUKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/01/01 Vol. E88-A No. 1 pp. 239-246 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Application Keyword: digital signature, disclosure of official information, privacy issue,
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Personal Entropy from Graphical Passwords: Methods for Quantification and Practical Key Generation Masato AKAO Shinji YAMANAKA Goichiro HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/10/01 Vol. E87-A No. 10 pp. 2543-2554 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: personal entropy, graphical passwords, biometrics, humancrypt, key generation,
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Information-Theoretically Secure Key Insulated Encryption: Models, Bounds and Constructions Yumiko HANAOKA Goichiro HANAOKA Junji SHIKATA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/10/01 Vol. E87-A No. 10 pp. 2521-2532 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: key exposure, key-insulated encryption, unconditional security,
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Unconditionally Secure Authenticated Encryption Junji SHIKATA Goichiro HANAOKA Yuliang ZHENG Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/05/01 Vol. E87-A No. 5 pp. 1119-1131 Type of Manuscript: Special Section LETTER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: unconditional security, encryption, authenticated encryption, signcryption,
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Traceability Schemes against Illegal Distribution of Signed Documents Shoko YONEZAWA Goichiro HANAOKA Junji SHIKATA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/05/01 Vol. E87-A No. 5 pp. 1172-1182 Type of Manuscript: Special Section LETTER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: signed document, illegal distribution, traceability, group signature, partially blind signature,
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The Role of Arbiters for Unconditionally Secure Authentication Goichiro HANAOKA Junji SHIKATA Yumiko HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/05/01 Vol. E87-A No. 5 pp. 1132-1140 Type of Manuscript: Special Section LETTER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: authentication code, arbiter, unconditional security,
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Managing Encryption and Key Publication Independently in Digital Rights Management Systems Goichiro HANAOKA Kazuto OGAWA Itsuro MUROTA Go OHTAKE Keigo MAJIMA Seiichi GOHSHI Kimiyuki OYAMADA Seiichi NAMBA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/01/01 Vol. E87-A No. 1 pp. 160-172 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Applications Keyword: digital rights management systems, copyright protection, semantic security, adaptive attacks,
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Efficient Unconditionally Secure Digital Signatures Goichiro HANAOKA Junji SHIKATA Yuliang ZHENG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/01/01 Vol. E87-A No. 1 pp. 120-130 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Asymmetric Cipher Keyword: digital signature, unconditional security,
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Constructing c-Secure CRT Codes Using Polynomials over Finite Fields Mira KIM Junji SHIKATA Hirofumi MURATANI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2003/12/01 Vol. E86-A No. 12 pp. 3259-3266 Type of Manuscript: PAPER Category: Information Security Keyword: fingerprinting, collusion attacks, Chinese remainder theorem (CRT),
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Performance of SUD and MUD Interference Cancellation Receivers in Single-Cell and Multi-Cell CDMA Systems Jonas KARLSSON Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/10/01 Vol. E86-B No. 10 pp. 2996-3003 Type of Manuscript: PAPER Category: Wireless Communication Technology Keyword: interference cancellation, cellular systems, CDMA,
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Irregular Low-Density Parity-Check Code Design Based on Euclidean Geometries Wataru MATSUMOTO Weigang XU Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2003/07/01 Vol. E86-A No. 7 pp. 1820-1834 Type of Manuscript: PAPER Category: Coding Theory Keyword: Euclidean geometry, low-density parity-check code, irregular LDPC code,
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CDMA Multi-Cell Performance of Combined Serial Interference Canceller and Normalized Griffiths' Algorithm Jonas KARLSSON Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/01/01 Vol. E86-B No. 1 pp. 162-169 Type of Manuscript: Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications) Category: Keyword: interference cancellation, single-user detector, multi-user detector, cellular systems, CDMA,
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Best Truncated and Impossible Differentials of Feistel Block Ciphers with S-D (Substitution and Diffusion) or D-S Round Functions Makoto SUGITA Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2003/01/01 Vol. E86-A No. 1 pp. 2-12 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Symmetric Ciphers and Hash Functions Keyword: block cipher camellia, truncated differential cryptanalysis, impossible differential cryptanalysis,
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Pretty-Simple Password-Authenticated Key-Exchange Protocol Proven to be Secure in the Standard Model Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/10/01 Vol. E85-A No. 10 pp. 2229-2237 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Information Security Keyword: entropy of passwords, key exchange, authentication, DDH problem, standard model,
	Summary \| Full Text:PDF(271.4KB)

Effect of Noisy Estimation on Turbo-Coded Modulation over Flat Rayleigh Fading Channels Tadashi MINOWA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/10/01 Vol. E85-A No. 10 pp. 2211-2219 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coding Theory Keyword: flat-Rayleigh fading channel, noisy channel estimate, channel capacity, turbo-coded modulation,
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An Unconditionally Secure Electronic Cash Scheme with Computational Untraceability Akira OTSUKA Goichiro HANAOKA Junji SHIKATA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/01/01 Vol. E85-A No. 1 pp. 140-148 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: electronic cash, information theoretic security, unconditionally secure signature,
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Cryptanalysis of TOYOCRYPT-HS1 Stream Cipher Miodrag J. MIHALJEVIC Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/01/01 Vol. E85-A No. 1 pp. 66-73 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: stream cipher, keystream generators, linear feedback shift registers, nonlinear filter, cryptanalysis,
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A Traitor Traceable Conference System with Dynamic Sender Goichiro HANAOKA Junji SHIKATA Yuliang ZHENG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/01/01 Vol. E85-A No. 1 pp. 167-174 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: traitor traceable scheme, authentication scheme, dynamic sender, unconditional security,
	Summary \| Full Text:PDF(252.6KB)

Semantically Secure McEliece Public-Key Cryptosystem Kazukuni KOBARA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/01/01 Vol. E85-A No. 1 pp. 74-83 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: McEliece public-key cryptosystem, semantic security, provable security, conversion, coding theory,
	Summary \| Full Text:PDF(258.1KB)

Reliability-Based Decoding Algorithm in Multistage Decoding of Multilevel Codes Motohiko ISAKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/10/01 Vol. E84-A No. 10 pp. 2528-2531 Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications) Category: Communication Systems Keyword: multilevel code, multistage decoding, partitioning reliability-based decoding, ordered statistics,
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A Novel Method of Reducing the Decoding Complexity for High-Rate Turbo Codes Tadashi MINOWA Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2001/08/01 Vol. E84-B No. 8 pp. 2151-2160 Type of Manuscript: PAPER Category: Fundamental Theories Keyword: turbo code, high-rate convolutional code, reduced-complexity decoding,
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Improving the Secure Electronic Transaction Protocol by Using Signcryption Goichiro HANAOKA Yuliang ZHENG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/08/01 Vol. E84-A No. 8 pp. 2042-2051 Type of Manuscript: PAPER Category: Information Security Keyword: signcryption, SET, computational overhead, message overhead,
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On Decoding Techniques for Cryptanalysis of Certain Encryption Algorithms Miodrag J. MIHALJEVIC Marc P. C. FOSSORIER Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/04/01 Vol. E84-A No. 4 pp. 919-930 Type of Manuscript: Special Section PAPER (Special Section on Fundamentals of Information and Communications) Category: Keyword: decoding, cryptanalysis, keystream generators, fast correlation attack,
	Summary \| Full Text:PDF(309.6KB)

Optimal Unconditionally Secure ID-Based Key Distribution Scheme for Large-Scaled Networks Goichiro HANAOKA Tsuyoshi NISHIOKA Yuliang ZHENG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/01/01 Vol. E84-A No. 1 pp. 222-230 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: key predistribution system, ID-based cryptosystem, collusion attack,
	Summary \| Full Text:PDF(299.1KB)

Development of Cryptology in the Nineties Hideki IMAI Junji SHIKATA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/01/01 Vol. E84-A No. 1 pp. 61-67 Type of Manuscript: INVITED PAPER (Special Section on the 10th Anniversary of the IEICE Transactions of Fundamentals: "Last Decade and 21st Century") Category: Keyword: cryptology, secret-key cryptography, public-key cryptography, key management, humancrypt,
	Summary \| Full Text:PDF(317.7KB)

A Digital Signature Scheme on ID-Based Key-Sharing Infrastructures Tsuyoshi NISHIOKA Goichiro HANAOKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/01/01 Vol. E84-A No. 1 pp. 214-221 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: key predistribution system, ID-based cryptosystem, digital signature,
	Summary \| Full Text:PDF(223.2KB)

Hierarchical Coding Based on Multilevel Bit-Interleaved Channels Motohiko ISAKA Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2001/01/01 Vol. E84-B No. 1 pp. 1-9 Type of Manuscript: PAPER Category: Fundamental Theories Keyword: multilevel coding, bit-interleaving, unequal error protection, multistage decoding,
	Summary \| Full Text:PDF(360.6KB)

An Algorithm for Cryptanalysis of Certain Keystream Generators Suitable for High-Speed Software and Hardware Implementations Miodrag J. MIHALJEVIC Marc P. C. FOSSORIER Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/01/01 Vol. E84-A No. 1 pp. 311-318 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: stream cipher, keystream generators, linear feedback shift registers, fast correlation attack, decoding,
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An Image Correction Scheme for Video Watermarking Extraction Akihiko KUSANAGI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/01/01 Vol. E84-A No. 1 pp. 273-280 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: digital watermarking, MPEG, image correction, patchwork algorithm, geometrical alteration,
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An Optimization of Credit-Based Payment for Electronic Toll Collection Systems Goichiro HANAOKA Tsuyoshi NISHIOKA Yuliang ZHENG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/08/25 Vol. E83-A No. 8 pp. 1681-1690 Type of Manuscript: PAPER Category: Information Security Keyword: credit-based payment, electronic toll collection system, key predistribution system, ID-based cryptosystem, collusion attack,
	Summary \| Full Text:PDF(613.8KB)

Tradeoffs between Error Performance and Decoding Complexity in Multilevel 8-PSK Codes with UEP Capabilities and Multistage Decoding Motohiko ISAKA Robert H. MORELOS-ZARAGOZA Marc P. C. FOSSORIER Shu LIN Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/08/25 Vol. E83-A No. 8 pp. 1704-1712 Type of Manuscript: PAPER Category: Coding Theory Keyword: multilevel codes, multistage decoding, tradeoffs, decoding complexity, error performance,
	Summary \| Full Text:PDF(734KB)

Modified Aggressive Mode of Internet Key Exchange Resistant against Denial-of-Service Attacks Kanta MATSUURA Hideki IMAI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2000/05/25 Vol. E83-D No. 5 pp. 972-979 Type of Manuscript: Special Section PAPER (Special Issue on Next Generation Internet Technologies and Their Applications) Category: Keyword: Internet, security, IKE, Denial-of-Service, Cookie,
	Summary \| Full Text:PDF(409.8KB)

Realizing the Menezes-Okamoto-Vanstone (MOV) Reduction Efficiently for Ordinary Elliptic Curves Junji SHIKATA Yuliang ZHENG Joe SUZUKI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/04/25 Vol. E83-A No. 4 pp. 756-763 Type of Manuscript: PAPER Category: Information Security Keyword: elliptic curve cryptography, elliptic curve discrete logarithm problem, Menezes-Okamoto-Vanstone (MOV) algorithm, supersingular elliptic curves, ordinary elliptic curves,
	Summary \| Full Text:PDF(458KB)

A Family of Fast Keystream Generators Based on Programmable Linear Cellular Automata over GF (q) and Time-Variant Table Miodrag MIHALJEVIC Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1999/01/25 Vol. E82-A No. 1 pp. 32-39 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: data encryption, stream cipher, keystream generators, cellular automata,
	Summary \| Full Text:PDF(155.7KB)

A Family of Fast Dedicated One-Way Hash Functions Based on Linear Cellular Automata over GF(q) Miodrag MIHALJEVIC Yuliang ZHENG Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1999/01/25 Vol. E82-A No. 1 pp. 40-47 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: information integrity, cryptographic hash-functions, cellular automata,
	Summary \| Full Text:PDF(166.7KB)

Coded Modulation for Satellite Broadcasting Based on Unconventional Partitionings Motohiko ISAKA Robert H. MORELOS-ZARAGOZA Marc P. C. FOSSORIER Shu LIN Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1998/10/25 Vol. E81-A No. 10 pp. 2055-2063 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coded Modulation Keyword: block coded modulation, multistage decoding, unequal error protection, unconventional partitionings, satellite broadcasting,
	Summary \| Full Text:PDF(862.8KB)

FOREWORD Shojiro SAKATA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1997/11/25 Vol. E80-A No. 11 pp. 2051-2051 Type of Manuscript: FOREWORD Category: Keyword:
	Summary \| Full Text:PDF(111.9KB)

Block Coding Scheme Based on Complementary Sequences for Multicarrier Signals Hideki OCHIAI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1997/11/25 Vol. E80-A No. 11 pp. 2136-2143 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Communications/Coded Modulation/Spread Spectrum Keyword: multicarrier modulation, multiphase complementary sequence, peak to average power ratio, block coding,
	Summary \| Full Text:PDF(596.9KB)

Multi-Dimensional Turbo Codes: Performance and Simplified Decoding Structure Jifeng LI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1997/11/25 Vol. E80-A No. 11 pp. 2089-2094 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coding Theory Keyword: multi-dimensional turbo code, iterative decoding, MAP algorithm, interleaver,
	Summary \| Full Text:PDF(451.2KB)

On Strictly Geometrically Uniform Codes: Construction and New Codes Oscar Yassuo TAKESHITA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1997/03/25 Vol. E80-A No. 3 pp. 590-597 Type of Manuscript: PAPER Category: Information Theory and Coding Theory Keyword: geometrically uniform codes, group codes, trellis code,
	Summary \| Full Text:PDF(625.9KB)

Viterbi Decoding Considering Synchronization Errors Takuo MORI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1996/09/25 Vol. E79-A No. 9 pp. 1324-1329 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coding Theory Keyword: synchronization error, insertion/deletion error, Viterbi decoding, Levenshtein distance,
	Summary \| Full Text:PDF(471.7KB)

Coded Modulation for Satellite Digital Video Broadcasting Robert MORELOS-ZARAGOZA Oscar Yassuo TAKESHITA Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1996/09/25 Vol. E79-A No. 9 pp. 1355-1360 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coded Modulation Keyword: coded modulation, digital video, satellite broadcasting,
	Summary \| Full Text:PDF(580.3KB)

MFSK/FH-CDMA System with Two-Stage Address Coding and Error Correcting Coding and Decoding Weidong MAO Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1995/09/25 Vol. E78-A No. 9 pp. 1117-1126 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: two-stage coding, MFSK, FH-CDMA, address code, multi-user detection, erasure decoding,
	Summary \| Full Text:PDF(875.2KB)

A Simple Method to Control Indirect Information Flows Satoshi OZAKI Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1994/11/25 Vol. E77-A No. 11 pp. 1938-1941 Type of Manuscript: Special Section LETTER (Special Section of Letters Selected from the 1994 IEICE Spring Conference) Category: Keyword: access control, flow control, information flow, information security, UNIX,
	Summary \| Full Text:PDF(261.4KB)

Variable Error Controlling Schemes for Intelligent Error Controlling Systems Taroh SASAKI Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1994/08/25 Vol. E77-A No. 8 pp. 1281-1288 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: error correcting codes, unequal error protection, variable error control, importance, intelligent communication,
	Summary \| Full Text:PDF(698.7KB)

Multilevel RLL (D,K,l) Constrained Sequences Oscar Yassuo TAKESHITA Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1994/08/25 Vol. E77-A No. 8 pp. 1238-1245 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: runlength limited sequences, recording signals, channel capacity, power spectra density,
	Summary \| Full Text:PDF(553.5KB)

An Error-Controlling Scheme according to the Importance of Individual Segments of Model-Based Coded Facial Images Noriko SUZUKI Taroh SASAKI Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1994/08/25 Vol. E77-A No. 8 pp. 1289-1297 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: human communication, facial image coding, intelligent error-controlling, unequal error protection codes, model-based coding,
	Summary \| Full Text:PDF(734.6KB)

Adaptive Array Antenna Based on Spatial Spectral Estimation Using Maximum Entropy Method Minami NAGATSUKA Naoto ISHII Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1994/05/25 Vol. E77-B No. 5 pp. 624-633 Type of Manuscript: Special Section PAPER (Special Issue on Adaptive Signal Processing in Mobile Radio Communications) Category: Keyword: adaptive array antenna, maximum entropy method, spatial sampling, temporal sampling,
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Shared Pseudo-Random Secret Generation Protocols Manuel CERECEDO Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1994/04/25 Vol. E77-A No. 4 pp. 636-645 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: information security, cryptography, pseudo-random number generation, secret sharing schemes, non-interactive secure computation,
	Summary \| Full Text:PDF(793.3KB)

Asymptotic Bounds for Unidirectional Byte Error-Correcting Codes Yuichi SAITOH Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1993/09/25 Vol. E76-A No. 9 pp. 1437-1441 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: asymptotic bound, error-correction coding, generalized concatenated coding, unidirectional byte error, Varshamov-Gilbert bound,
	Summary \| Full Text:PDF(337KB)

A Fast Automatic Fingerprint Identification Method Based on a Weighted-Mean of Binary Image Yu HE Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1993/09/25 Vol. E76-A No. 9 pp. 1469-1482 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: automatic fingerprint identification, pattern recognition, weighted-mean, optimization, personal identification,
	Summary \| Full Text:PDF(1.1MB)

Implementation of an Industrial R/C System Using a Hybrid DS/FH Spread Spectrum Technique Atsushi HOSHIKUKI Michio YAMAMOTO Satoru ISHII Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1993/08/25 Vol. E76-B No. 8 pp. 984-989 Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Applications) Category: Keyword: industrial R/C system, hybrid DS/FH, DS, FH, spread spectrum,
	Summary \| Full Text:PDF(535.2KB)

Multihopping and Decoding of Error-Correcting Code for MFSK/FH-SSMA Systems Tetsuo MABUCHI Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1993/08/25 Vol. E76-B No. 8 pp. 874-885 Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Applications) Category: Keyword: spread spectrum multiple access, frequency hopping, error-correcting code,
	Summary \| Full Text:PDF(927.4KB)

Efficient and Secure Multiparty Generation of Digital Signatures Based on Discrete Logarithms Manuel CERECEDO Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1993/04/25 Vol. E76-A No. 4 pp. 532-545 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: information security, cryptography, digital signatures, multiparty protocols, noninteracitve secure computation, discrete log-based cryptosystems,
	Summary \| Full Text:PDF(1.2MB)

Construction Techniques for Error-Control Runlength-Limited Block Codes Yuichi SAITOH Takahiro OHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1993/03/25 Vol. E76-A No. 3 pp. 453-458 Type of Manuscript: PAPER Category: Information Theory and Coding Theory Keyword: coding theory, (d,k) constraints, error-correction coding, error-detection coding, modulation coding,recording code,
	Summary \| Full Text:PDF(480.9KB)

Adaptive Equalization with Dual Diversity-Combining Kouei MISAIZU Takashi MATSUOKA Hiroshi OHNISHI Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1993/02/25 Vol. E76-B No. 2 pp. 131-138 Type of Manuscript: Special Section PAPER (Special Issue on Land Mobile/Portable Propagation) Category: Keyword: adaptive equalizer, dual diversity-combining, digital mobile radio communication, multipath fading channel,
	Summary \| Full Text:PDF(628.7KB)

Cascaded Co-Channel Interference Cancelling and Diversity Combining for Spread-Spectrum Multi-Access over Multipath Fading Channels Young C. YOON Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1993/02/25 Vol. E76-B No. 2 pp. 163-168 Type of Manuscript: Special Section LETTER (Special Issue on Land Mobile/Portable Propagation) Category: Keyword: spread-spectrum multi-access, co-channel interference cancellation, diversity combining, multipath fading,
	Summary \| Full Text:PDF(357.9KB)

Methods to Securely Realize Caller-Authenticated and Callee-Specified Telephone Calls Tomoyuki ASANO Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1993/01/25 Vol. E76-A No. 1 pp. 88-95 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: information security, personalized telecommunication, caller authentication, callee specification, key predistribution system, cryptography,
	Summary \| Full Text:PDF(655.1KB)

Runlength-Limited Short-Length Codes for Unidirectional-Byte-Error-Control Yuichi SAITOH Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1992/09/25 Vol. E75-A No. 9 pp. 1057-1062 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: byte errors, coding/decoding, error-correction coding, memory fault-tolerance, recording code, unidirectional error,
	Summary \| Full Text:PDF(426.2KB)

Median Differential Order Statistic Filters Peiheng QI Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1992/09/25 Vol. E75-A No. 9 pp. 1100-1109 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: median filter, order statistic filter, median differential order information, piecewise linear function, output mean square error,
	Summary \| Full Text:PDF(712.8KB)

An Error-Controlling Scheme Based on Different Importance of Segments of a Natural Language Taroh SASAKI Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1992/09/25 Vol. E75-A No. 9 pp. 1076-1086 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Keyword: intelligent communication, error-correcting codes, natural language,
	Summary \| Full Text:PDF(834.7KB)

Runlength-Limited Codes which Turn Peak-Shift Errors into Unidirectional Byte Errors Yuichi SAITOH Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1992/07/25 Vol. E75-A No. 7 pp. 898-900 Type of Manuscript: Special Section LETTER (Special Section on the 1992 IEICE Spring Conference) Category: Keyword: coding theory, recording code, error-correcting code, concatenated code, peak-shift error, unidirectional byte error,
	Summary \| Full Text:PDF(208.6KB)

A Multi-Purpose Proof System and Its Analysis Chaosheng SHU Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1992/06/25 Vol. E75-A No. 6 pp. 735-743 Type of Manuscript: PAPER Category: Information Security and Cryptography Keyword: identity proof, membership proof, zero-knowledge proof,
	Summary \| Full Text:PDF(785KB)

Proving Identity in Three Moves Yuliang ZHENG Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1991/11/25 Vol. E74-A No. 11 pp. 3602-3606 Type of Manuscript: PAPER Category: Information Security and Cryptography Keyword:
	Summary \| Full Text:PDF(392.4KB)

Recent Applications of Error-Correcting Codes Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1991/09/25 Vol. E74-A No. 9 pp. 2473-2482 Type of Manuscript: INVITED PAPER (Special Issue on Information Theory and Its Applications) Category: Keyword:
	Summary \| Full Text:PDF(753.3KB)

New Decoding Techniques for Punctured Convolutional Codes Pisit CHARN KEIT KONG Yuichi SAITOH Kazuhiko YAMAGUCHI Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1991/09/25 Vol. E74-A No. 9 pp. 2571-2578 Type of Manuscript: Special Section PAPER (Special Issue on Information Theory and Its Applications) Category: Keyword:
	Summary \| Full Text:PDF(566.4KB)

New Binary Encoding Schemes of Positive Integers Yoko MIYAKAWA Yuichi SAITOH Hideki IMAI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1991/09/25 Vol. E74-A No. 9 pp. 2504-2512 Type of Manuscript: Special Section PAPER (Special Issue on Information Theory and Its Applications) Category: Keyword:
	Summary \| Full Text:PDF(484.6KB)

Pseudo-Noise Sequences for Tracking and Data Relay Satellite and Related Systems Hidenobu FUKUMASA Ryuji HOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1991/05/25 Vol. E74-B No. 5 pp. 1137-1144 Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Its Applications) Category: Keyword:
	Summary \| Full Text:PDF(602.3KB)

Performance of Multihop Fast Frequency Hopping/Spread Spectrum Multiple Access System in a Selective Fading Channel Hideya YAMAMURA Ryuji KOHNO Hideki IMAI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1991/05/25 Vol. E74-B No. 5 pp. 1145-1154 Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Its Applications) Category: Keyword:
	Summary \| Full Text:PDF(678KB)

Information Security of Spread Spectrum Systems Hideki IMAI Ryuji KOHNO Tsutomu MATSUMOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1991/03/25 Vol. E74-A No. 3 pp. 488-505 Type of Manuscript: INVITED PAPER Category: Keyword:
	Summary \| Full Text:PDF(1.5MB)

Recent Development of Cryptology in Japan Hideki IMAI
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1990/07/25 Vol. E73-E No. 7 pp. 1026-1030 Type of Manuscript: REVIEW PAPER Category: Keyword:
	Summary \| Full Text:PDF(408.5KB)

A Prototype KPS and Its Application--IC Card Based Key Sharing and Cryptographic Communication-- Tsutomu MATSUMOTO Youichi TAKASHIMA Hideki IMAI Minoru SASAKI Hiroharu YOSHIKAWA Shin-ichiro WATANABE
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1990/07/25 Vol. E73-E No. 7 pp. 1111-1119 Type of Manuscript: Special Section PAPER (Special Issue on Cryptography and Information Security) Category: Applications Keyword:
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Connections among Several Versions of One-Way Hash Functions Yuliang ZHENG Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1990/07/25 Vol. E73-E No. 7 pp. 1092-1099 Type of Manuscript: Special Section PAPER (Special Issue on Cryptography and Information Security) Category: Authentication Techniques Keyword:
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On Generating Cryptographically Desirable Substitutions Kwangjo KIM Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1990/07/25 Vol. E73-E No. 7 pp. 1031-1035 Type of Manuscript: Special Section PAPER (Special Issue on Cryptography and Information Security) Category: Common-Key Systems Keyword:
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Several Theorems on Probabilistic Cryptosystems Yuliang ZHENG Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1989/07/25 Vol. E72-E No. 7 pp. 819-827 Type of Manuscript: PAPER Category: Foundations of Data Security Keyword:
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Residuosity Problem and Its Applications to Cryptography Yuliang ZHENG Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1988/08/25 Vol. E71-E No. 8 pp. 759-767 Type of Manuscript: PAPER Category: Foundations of Data Security Keyword:
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On Seeking Smart Public-Key-Distribution Systems Tsutomu MATSUMOTO Youichi TAKASHIMA Hideki IMAI
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1986/02/25 Vol. E69-E No. 2 pp. 99-106 Type of Manuscript: PAPER Category: Information and Communication Theory Keyword:
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A Cryptographically Useful Theorem on the Connection between Uni and Multivariate Polynomials Tsutomu MATSUMOTO Hideki IMAI Hiroshi HARASHIMA Hiroshi MIYAKAWA
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1985/03/25 Vol. E68-E No. 3 pp. 139-146 Type of Manuscript: PAPER Category: Cryptography Keyword:
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Boolean-Function Representations of a Mapping Tsutomu MATSUMOTO Hideki IMAI
Publication: IEICE TRANSACTIONS (1976-1990) Publication Date: 1982/06/25 Vol. E65-E No. 6 pp. 337-344 Type of Manuscript: PAPER Category: Computers Keyword:
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