Naofumi HOMMA


Power Analysis on Unrolled Architecture with Points-of-Interest Search and Its Application to PRINCE Block Cipher
Ville YLI-MÄYRY Naofumi HOMMA Takafumi AOKI 
Publication:   
Publication Date: 2017/01/01
Vol. E100-A  No. 1  pp. 149-157
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
low latency cipherscryptographic hardwareside-channel attacksunrolled architecturespower analysis
 Summary | Full Text:PDF(2.2MB)

Electromagnetic Analysis against Public-Key Cryptographic Software on Embedded OS
Hajime UNO Sho ENDO Naofumi HOMMA Yu-ichi HAYASHI Takafumi AOKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1242-1249
Type of Manuscript:  Special Section PAPER (Special Section on Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'14/Tokyo)
Category: 
Keyword: 
EM information securityside-channel attackembedded OSelectromagnetic analysisRSA softwarechosen-message simple electromagnetic analysis
 Summary | Full Text:PDF(4.5MB)

Efficient DFA on SPN-Based Block Ciphers and Its Application to the LED Block Cipher
Rei UENO Naofumi HOMMA Takafumi AOKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Vol. E98-A  No. 1  pp. 182-191
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Foundation
Keyword: 
differential fault analysisfault injection attacksubstitution-permutation networkLED block cipherlightweight cryptography
 Summary | Full Text:PDF(969.9KB)

An Adaptive Multiple-Fault Injection Attack on Microcontrollers and a Countermeasure
Sho ENDO Naofumi HOMMA Yu-ichi HAYASHI Junko TAKAHASHI Hitoshi FUJI Takafumi AOKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Vol. E98-A  No. 1  pp. 171-181
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Foundation
Keyword: 
embedded microcontrollerscryptographic softwarefault injection attacks
 Summary | Full Text:PDF(3.3MB)

Formal Design of Arithmetic Circuits over Galois Fields Based on Normal Basis Representations
Kotaro OKAMOTO Naofumi HOMMA Takafumi AOKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/09/01
Vol. E97-D  No. 9  pp. 2270-2277
Type of Manuscript:  Special Section PAPER (Special Section on Multiple-Valued Logic and VLSI Computing)
Category: VLSI Architecture
Keyword: 
arithmetic circuitsformal verificationnormal basiscomputer algebra
 Summary | Full Text:PDF(1.2MB)

Power Noise Measurements of Cryptographic VLSI Circuits Regarding Side-Channel Information Leakage
Daisuke FUJIMOTO Noriyuki MIURA Makoto NAGATA Yuichi HAYASHI Naofumi HOMMA Takafumi AOKI Yohei HORI Toshihiro KATASHITA Kazuo SAKIYAMA Thanh-Ha LE Julien BRINGER Pirouz BAZARGAN-SABET Shivam BHASIN Jean-Luc DANGER 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/04/01
Vol. E97-C  No. 4  pp. 272-279
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design,---,Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
information leakageside-channel attackcorrelation power analysisadvance encryption standard
 Summary | Full Text:PDF(4MB)

Chosen-IV Correlation Power Analysis on KCipher-2 Hardware and a Masking-Based Countermeasure
Takafumi HIBIKI Naofumi HOMMA Yuto NAKANO Kazuhide FUKUSHIMA Shinsaku KIYOMOTO Yutaka MIYAKE Takafumi AOKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 157-166
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Based Cryptography
Keyword: 
side-channel attacksKCipher-2correlation power analysisrandom masking
 Summary | Full Text:PDF(6.7MB)

Evaluation of Information Leakage from Cryptographic Hardware via Common-Mode Current
Yu-ichi HAYASHI Naofumi HOMMA Takaaki MIZUKI Takeshi SUGAWARA Yoshiki KAYANO Takafumi AOKI Shigeki MINEGISHI Akashi SATOH Hideaki SONE Hiroshi INOUE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/06/01
Vol. E95-C  No. 6  pp. 1089-1097
Type of Manuscript:  PAPER
Category: Electronic Components
Keyword: 
information securityelectromagnetic information leakagecryptographic modulesside-channel attackscommon-mode currents
 Summary | Full Text:PDF(2.3MB)

A Configurable On-Chip Glitchy-Clock Generator for Fault Injection Experiments
Sho ENDO Takeshi SUGAWARA Naofumi HOMMA Takafumi AOKI Akashi SATOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/01/01
Vol. E95-A  No. 1  pp. 263-266
Type of Manuscript:  Special Section LETTER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
faulty injection attacksclock glitchRSAsafe-error attack
 Summary | Full Text:PDF(1.6MB)

High-Performance Architecture for Concurrent Error Detection for AES Processors
Takeshi SUGAWARA Naofumi HOMMA Takafumi AOKI Akashi SATOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/10/01
Vol. E94-A  No. 10  pp. 1971-1980
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
dependable architecturesfault injection attackstamper resistanceerror detection
 Summary | Full Text:PDF(2.9MB)

Multiple-Valued Constant-Power Adder and Its Application to Cryptographic Processor
Naofumi HOMMA Yuichi BABA Atsushi MIYAMOTO Takafumi AOKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/08/01
Vol. E93-D  No. 8  pp. 2117-2125
Type of Manuscript:  Special Section PAPER (Special Section on Multiple-Valued Logic and VLSI Computing)
Category: Application of Multiple-Valued VLSI
Keyword: 
cryptographic processorsside-channel attacksarithmetic circuitsmultiple-valued logicRSA cryptosystem
 Summary | Full Text:PDF(977KB)

Arithmetic Circuit Verification Based on Symbolic Computer Algebra
Yuki WATANABE Naofumi HOMMA Takafumi AOKI Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/10/01
Vol. E91-A  No. 10  pp. 3038-3046
Type of Manuscript:  PAPER
Category: VLSI Design Technology and CAD
Keyword: 
datapatharithmetic circuitsformal verificationcomputer algebra
 Summary | Full Text:PDF(754.8KB)

A High-Resolution Phase-Based Waveform Matching and Its Application to Side-Channel Attacks
Naofumi HOMMA Sei NAGASHIMA Takeshi SUGAWARA Takafumi AOKI Akashi SATOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/01/01
Vol. E91-A  No. 1  pp. 193-202
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Side Channel Attacks
Keyword: 
side-channel attacksDPADEMAcryptographic modulewaveform matchingphase-only correlation
 Summary | Full Text:PDF(1.2MB)

Formal Design of Arithmetic Circuits Based on Arithmetic Description Language
Naofumi HOMMA Yuki WATANABE Takafumi AOKI Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/12/01
Vol. E89-A  No. 12  pp. 3500-3509
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Circuit Synthesis
Keyword: 
datapathsformal designarithmetic circuitshardware algorithmshardware description languagemodule generator
 Summary | Full Text:PDF(874.3KB)

Systematic Interpretation of Redundant Arithmetic Adders in Binary and Multiple-Valued Logic
Naofumi HOMMA Takafumi AOKI Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/11/01
Vol. E89-C  No. 11  pp. 1645-1654
Type of Manuscript:  Special Section PAPER (Special Section on Novel Device Architectures and System Integration Technologies)
Category: 
Keyword: 
datapathsarithmetic circuitsaddition algorithmsnumber systemsmultiple-valued logic
 Summary | Full Text:PDF(856KB)

Counter Tree Diagrams: A Unified Framework for Analyzing Fast Addition Algorithms
Jun SAKIYAMA Naofumi HOMMA Takafumi AOKI Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/12/01
Vol. E86-A  No. 12  pp. 3009-3019
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: IP Design
Keyword: 
computer arithmetic algorithmsparallel countersmultipliersdatapathVLSIcircuit synthesis
 Summary | Full Text:PDF(905.4KB)

Parallel Evolutionary Design of Constant-Coefficient Multipliers
Dingjun CHEN Takafumi AOKI Naofumi HOMMA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 508-512
Type of Manuscript:  LETTER
Category: VLSI Design Technology and CAD
Keyword: 
evolutionary graph generationmultiplierPC clusterscanonical signed-digit (CSD) number representation
 Summary | Full Text:PDF(718.4KB)

Evolutionary Synthesis of Fast Constant-Coefficient Multipliers
Naofumi HOMMA Takafumi AOKI Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/09/25
Vol. E83-A  No. 9  pp. 1767-1777
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
circuit designcomputer arithmeticarithmetic circuitsevolvable hardwareevolutionary computation
 Summary | Full Text:PDF(982.5KB)

Evolutionary Design of Arithmetic Circuits
Takafumi AOKI Naofumi HOMMA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/05/25
Vol. E82-A  No. 5  pp. 798-806
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
circuit designcomputer arithmeticarithmetic circuitsevolvable hardwareevolutionary computation
 Summary | Full Text:PDF(758.6KB)