Lei WANG


Virtual Sensor Idea-Based Geolocation Using RF Multipath Diversity
Zhigang CHEN Lei WANG He HUANG Guomei ZHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/10/01
Vol. E99-A  No. 10  pp. 1799-1805
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
EM (Expectation Maximization)particle filteringwireless positioningvirtual sensormultipath
 Summary | Full Text:PDF(1.3MB)

Message Extension Attack against Authenticated Encryptions: Application to PANDA
Yu SASAKI Lei WANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/01/01
Vol. E99-A  No. 1  pp. 49-57
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
message extension attackinternal state recoveryexistential forgerynonce misuseCAESARPANDA
 Summary | Full Text:PDF(1.1MB)

Practical Forgeries and Distinguishers against PAES
Jérémy JEAN Ivica NIKOLIC Yu SASAKI Lei WANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/01/01
Vol. E99-A  No. 1  pp. 39-48
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
PAESuniversal forgerydistinguishersymmetric propertyauthenticated encryption
 Summary | Full Text:PDF(1.9MB)

Generic Internal State Recovery on Strengthened HMAC: n-bit Secure HMAC Requires Key in All Blocks
Yu SASAKI Lei WANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/01/01
Vol. E99-A  No. 1  pp. 22-30
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
HMACgeneric attackinternal state recoverymulti-collision
 Summary | Full Text:PDF(919.2KB)

A Simple Dispersion Matrix Design Method for Generalized Space-Time Shift Keying
Cheng CHEN Lei WANG ZhiGang CHEN GuoMei ZHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/08/01
Vol. E98-A  No. 8  pp. 1849-1853
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
MIMO systemsgeneralized space-time shift keyingcyclic identity dispersion matrixtransmit diversity
 Summary | Full Text:PDF(397KB)

Evaluating Cooperative ARQ Protocols from the Perspective of Physical Layer Security
Lei WANG Xinrong GUAN Yueming CAI Weiwei YANG Wendong YANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/05/01
Vol. E98-B  No. 5  pp. 927-939
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
connection outagesecrecy outagesecrecy throughputreliability-security tradeoffcooperative ARQ
 Summary | Full Text:PDF(1.6MB)

Bitwise Partial-Sum: A New Tool for Integral Analysis against ARX Designs
Yu SASAKI Lei WANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Vol. E98-A  No. 1  pp. 49-60
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Based Cryptography
Keyword: 
integral analysispartial-sumbitwise partial-sumARXHIGHT
 Summary | Full Text:PDF(1.4MB)

Improved Single-Key Distinguisher on HMAC-MD5 and Key Recovery Attacks on Sandwich-MAC-MD5 and MD5-MAC
Yu SASAKI Gaoli WANG Lei WANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Vol. E98-A  No. 1  pp. 26-38
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Based Cryptography
Keyword: 
HMACSandwich-MACMD5-MACMD5key recovery
 Summary | Full Text:PDF(1.3MB)

Real-Time MAC Protocol Based on Coding-Black-Burst in Wireless Sensor Networks
Feng YU Lei WANG Dan GAO Yingguan WANG Xiaolin ZHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/11/01
Vol. E97-A  No. 11  pp. 2279-2282
Type of Manuscript:  LETTER
Category: Communication Theory and Signals
Keyword: 
real-timeMACBlack-BurstWSN
 Summary | Full Text:PDF(639.9KB)

Salient Region Detection Based on Color Uniqueness and Color Spatial Distribution
Xing ZHANG Keli HU Lei WANG Xiaolin ZHANG Yingguan WANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/07/01
Vol. E97-D  No. 7  pp. 1933-1936
Type of Manuscript:  LETTER
Category: Image Recognition, Computer Vision
Keyword: 
visual attentionsaliency mapcolor uniquenesscolor spatial distribution
 Summary | Full Text:PDF(2MB)

Comprehensive Study of Integral Analysis on LBlock
Yu SASAKI Lei WANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 127-138
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Based Cryptography
Keyword: 
LBlockintegral analysispartial-summeet-in-the-middlesubkey relations
 Summary | Full Text:PDF(1.6MB)

Distinguishers on Double-Branch Compression Function and Applications to Round-Reduced RIPEMD-128 and RIPEMD-160
Yu SASAKI Lei WANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 177-190
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Based Cryptography
Keyword: 
RIPEMD-128RIPEMD-160double-branch structure2-dimension sumq-multi-second-order collision
 Summary | Full Text:PDF(699.4KB)

Meet-in-the-Middle (Second) Preimage Attacks on Two Double-Branch Hash Functions RIPEMD and RIPEMD-128
Lei WANG Yu SASAKI Wataru KOMATSUBARA Kazuo SAKIYAMA Kazuo OHTA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/01/01
Vol. E95-A  No. 1  pp. 100-110
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Hash Function
Keyword: 
RIPEMDRIPEMD-128meet-in-the-middleone-message-word local collision
 Summary | Full Text:PDF(1.5MB)

Performance Analysis of Opportunistic and All-Participate Relaying with Imperfect Channel Estimation
Lei WANG Yueming CAI Weiwei YANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/11/01
Vol. E94-B  No. 11  pp. 3151-3154
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
imperfect channel estimationaverage symbol error ratediversity and multiplexing tradeoff
 Summary | Full Text:PDF(128.9KB)

Impact of Channel Estimation Errors in Cooperative Transmission over Nakagami-m Fading Channels
Lei WANG Yueming CAI Weiwei YANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/02/01
Vol. E94-D  No. 2  pp. 298-307
Type of Manuscript:  PAPER
Category: Information Network
Keyword: 
cooperative communication systemschannel estimation errorsaverage symbol error rate (SER)average signal-noise-ratio (SNR) gap ratio
 Summary | Full Text:PDF(451.3KB)

Security of Cryptosystems Using Merkle-Damgård in the Random Oracle Model
Yusuke NAITO Kazuki YONEYAMA Lei WANG Kazuo OHTA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/01/01
Vol. E94-A  No. 1  pp. 57-70
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Cryptography
Keyword: 
indifferentiabilityMerkle-Damgård hash functionvariants of random oraclecryptosystems security
 Summary | Full Text:PDF(657.3KB)

Preimage Attack on 23-Step Tiger
Lei WANG Yu SASAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/01/01
Vol. E94-A  No. 1  pp. 110-120
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Hash Function
Keyword: 
Tigerhash functionmeet-in-the-middlepreimage attackindependent chunks
 Summary | Full Text:PDF(5.8MB)

Outage Performance of Decode-and-Forward Relay Systems Using Imperfect MRC Receiver over Nakagami-m Fading Channels
Weiwei YANG Yueming CAI Lei WANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/12/01
Vol. E93-D  No. 12  pp. 3273-3275
Type of Manuscript:  Special Section LETTER (Special Section on Parallel and Distributed Computing and Networking)
Category: 
Keyword: 
decode-and-forwardimperfect MRCoutage probability
 Summary | Full Text:PDF(154.2KB)

Cooperative Spectrum Sensing Using Free Probability Theory
Lei WANG Baoyu ZHENG Qingmin MENG Chao CHEN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/06/01
Vol. E93-B  No. 6  pp. 1547-1554
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cognitive radio networkspectrum sensingrandom matrix theoryfree probability theoryWishart distribution
 Summary | Full Text:PDF(4.6MB)

Cryptanalysis of Two MD5-Based Authentication Protocols: APOP and NMAC
Lei WANG Kazuo OHTA Yu SASAKI Kazuo SAKIYAMA Noboru KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/05/01
Vol. E93-D  No. 5  pp. 1087-1095
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication System Security)
Category: 
Keyword: 
authentication protocolAPOPNMACMD5
 Summary | Full Text:PDF(317.2KB)

Spectrum Sensing for Multiuser Network Based on Free Probability Theory
Lei WANG Baoyu ZHENG Qingmin MENG Chao CHEN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/01/01
Vol. E93-B  No. 1  pp. 65-72
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cognitive radiospectrum sensingfree probability theoryrandom matrix theory
 Summary | Full Text:PDF(360.6KB)

Practical Password Recovery Attacks on MD4 Based Prefix and Hybrid Authentication Protocols
Yu SASAKI Lei WANG Kazuo OHTA Kazumaro AOKI Noboru KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/01/01
Vol. E93-A  No. 1  pp. 84-92
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Hash Function
Keyword: 
challenge and responseprefixhybridpassword recovery attacklocal collisionhash functionMD4
 Summary | Full Text:PDF(339.7KB)

Side Information Inserted Pilot Tone Transmission for PAPR Reduction in OFDM
Lei WANG Dongweon YOON Sang Kyu PARK 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 687-690
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
PAPRSLMside informationOFDM
 Summary | Full Text:PDF(110.9KB)

Extended Password Recovery Attacks against APOP, SIP, and Digest Authentication
Yu SASAKI Lei WANG Kazuo OHTA Noboru KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/01/01
Vol. E92-A  No. 1  pp. 96-104
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Hash Function
Keyword: 
APOPSIPdigest authenticationIV bridgecollision attackhash functionMD5
 Summary | Full Text:PDF(230.4KB)

Near-Collision Attacks on MD4: Applied to MD4-Based Protocols
Lei WANG Kazuo OHTA Noboru KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/01/01
Vol. E92-A  No. 1  pp. 76-86
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Hash Function
Keyword: 
near-collisionMD4HMAC/NMACchallenge and responseHash(Password||Challenge)
 Summary | Full Text:PDF(287.3KB)

Standard Deviation and Intra Prediction Mode Based Adaptive Spatial Error Concealment (SEC) in H.264/AVC
Jun WANG Lei WANG Takeshi IKENAGA Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/10/01
Vol. E91-A  No. 10  pp. 2954-2962
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Video Coding
Keyword: 
SECadaptivestandard deviationintra prediction mode
 Summary | Full Text:PDF(1.1MB)

Variable Block Size Motion Vector Retrieval Schemes for H.264 Inter Frame Error Concealment
Lei WANG Jun WANG Satoshi GOTO Takeshi IKENAGA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/10/01
Vol. E91-A  No. 10  pp. 2945-2953
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Video Coding
Keyword: 
H.264/AVCvariable block size error concealmentmotion vector refinementdirectional spatio-temporal boundary matching algorithm
 Summary | Full Text:PDF(587.6KB)

Exact Distribution of the Amplitude of Adaptively Selected OFDM Signal Samples
Lei WANG Dongweon YOON Sang Kyu PARK 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 355-358
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMadaptive symbol selection schemeclippingPAPR reduction
 Summary | Full Text:PDF(118.4KB)

New Message Differences for Collision Attacks on MD4 and MD5
Yu SASAKI Lei WANG Noboru KUNIHIRO Kazuo OHTA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/01/01
Vol. E91-A  No. 1  pp. 55-63
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Hash Functions
Keyword: 
collision attackmessage differenceMD4MD5hash function
 Summary | Full Text:PDF(265KB)

Low-Complex Equalization for Single Carrier Systems Employing Cyclic Prefix over Time-Variant Channels
Feng LI Shihua ZHU Lei WANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/12/01
Vol. E90-B  No. 12  pp. 3733-3737
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
SC-CPchannel equalizationtime-varying channelsmatrix factorization
 Summary | Full Text:PDF(246.5KB)

Round-Robin with VirtualClock Scheduling Algorithm in Multiservice Packet Networks
Lei WANG Mike H. MACGREGOR 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/11/01
Vol. E89-B  No. 11  pp. 3040-3045
Type of Manuscript:  PAPER
Category: Network
Keyword: 
scheduling algorithmsround robinVirtualClockdelay bound
 Summary | Full Text:PDF(397.5KB)

Khatri-Rao Unitary Space-Time Modulation
Lei WANG Shihua ZHU Jun WANG Yanxing ZENG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/09/01
Vol. E89-B  No. 9  pp. 2530-2536
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
transmit diversityKhatri-Rao productunitary space-time modulationnon-coherent detectionwireless communications
 Summary | Full Text:PDF(356.1KB)

Visual Secret Sharing Schemes for Multiple Secret Images Allowing the Rotation of Shares
Mitsugu IWAMOTO Lei WANG Kazuki YONEYAMA Noboru KUNIHIRO Kazuo OHTA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/05/01
Vol. E89-A  No. 5  pp. 1382-1395
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
visual secret sharing schemesvisual cryptographysecret sharing schemesmultiple secret imagesrotation of shares
 Summary | Full Text:PDF(527.7KB)