Papers - KODERA Yuuta

A Blockchain-Based Approach for Secure Email Encryption with Variable ECC Key Lengths Selection Reviewed

Md. Biplob Hossain, Maya Rahayu, Samsul Huda, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

Proc. of International Conference on Mobile Internet Security (MobiSec 2024)   2024.12

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The Design and Implementation of Kerberos-Blockchain Vehicular Ad-Hoc Networks Authentication Across Diverse Network Scenarios

Maya Rahayu, MD BIPLOB HOSSAIN, Samsul Huda, Yuta Kodera, Md. Arshad Ali, Yasuyuki Nogami

Sensors   2024.11

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DOI： 10.3390/s24237428

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NUSS: Non-Interactive Updatable of Secret Sharing Schemes Using Homomorphic Encryption Reviewed

He Yixuan, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

Proc. of Eleventh International Symposium on Computing and Networking Workshops (CANDARW)   2024.11

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A Study of Layer-2 Consortium Blockchain with zk-SNARKs for Medical Information Management Reviewed

Yang Jie, Yuta Kodera, Samsul Huda, Yasuyuki Nogami

Proc. of Eleventh International Symposium on Computing and Networking Workshops (CANDARW)   2024.11

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An Implementation of USB-Enabled Network Isolation for Remote IoT Security Exercises Reviewed

Nobuya Ishihara, Yuta Kodera, Samsul Huda, Tanoshimaru Isokawa, Yasuyuki Nogami

Proc. of Eleventh International Symposium on Computing and Networking Workshops (CANDARW)   2024.11

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Investigating the Role of D Flip-Flop as a Synchronization Circuit for Enhancing Randomness and Stabilizing Bit Distribution in RO-Based RNG on FPGA Reviewed

Mitsuki Fujiwara, Ryoichi Sato, Samsul Huda, Yasuyuki Nogami, Yuta Kodera

Proc. of the International Symposium on Information Theory and Its Applications (ISITA 2024)   2024.11

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Generative Adversarial Networks for Imbalanced Dataset Intrusion Detection in Software-Defined Networking Reviewed

S. M., Shamim, Muhammad, Bisri Musthafa, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

Proc. of the International Symposium on Information Theory and Its Applications (ISITA 2024)   2024.11

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A Deployment of Ensemble-Based IDS on Raspberry Pi Reviewed

Muhammad Bisri Musthafa, Samsul Huda, S. M. Shamim, Yuta Kodera, Jedidah Mwaura, Shunsuke Araki, Yasuyuki Nogami

Proc. of the 13th Global Conference on Consumer Electronics (GCCE 2024)   2024.10

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An In-depth Analysis of Kerberos and Blockchain Integration on VANETs’ Security and Performance Reviewed

Maya Rahayu, Md. Biplob Hossain, Samsul Huda, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

2024 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   391 - 392   2024.7

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ELiPS-based Ciphertext-Policy Attribute-Based Encryption Reviewed

Le Hoang Anh, Yuta Kawada, Samsul Huda, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

International Journal of Networking and Computing   14 ( 2 )   186 - 205   2024.7

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Investigating Vulnerabilities in RSA-like Cryptosystems Through Lattice-based Attacks on Small Exponent Keys

Sou Kumagai, Shota Kanzawa, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

2024 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   583 - 584   2024.7

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A Blockchain-based Approach with zk-SNARKs for Secure Email Applications Reviewed

Md. Biplob Hossain, Maya Rahayu, Md. Arshad Ali, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

International Journal of Networking and Computing   14 ( 2 )   225 - 247   2024.7

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Optimizing CRYSTALS-Dilithium in Rust: Radix-4 NTT and Assembly-level Comparison with Official C Implementation Reviewed

Shunri Kudo, Yasuyuki Nogami, Samsul Huda, Yuta Kodera

2024 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   395 - 396   2024.7

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A Study to Improve Calculation Efficiency of CKKS Encoding with Parallelization Reviewed

Taichi Saito, He Yixuan, Samsul Huda, Junting Xiao, Yuta Kodera, Yasuyuki Nogami

2024 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   397 - 398   2024.7

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Optimizing IoT Intrusion Detection Using Balanced Class Distribution, Feature Selection, and Ensemble Machine Learning Techniques Reviewed

MUHAMMAD BISRI MUSTHAFA, Samsul Huda, Yuta Kodera, Md. Arshad Ali, Shunsuke Araki, Jedidah Mwaura, Yasuyuki Nogami

Sensors   24 ( 13 )   4293 - 4311   2024.7

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DOI： 10.3390/s24134293

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Reducing Fruitless Cycles in Pollard's Rho Method with SFM for Efficient ECDLP Attacks on BN Curves Reviewed

Ryuichi Kato, Takuro Manabe, Shota Kanzawa, Samsul Huda, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The 39th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   1 - 5   2024.7

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SnapSafe: Enabling Selective Image Privacy Through YOLO and AES-Protected Facial Encryption with QR Code Reviewed

Andri Santoso, Samsul Huda, Tuy Tan Nguyen, Yuta Kodera, Yasuyuki Nogami

The 39th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   1 - 5   2024.7

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A Minimization Number of Final Exponentiations and Inversions for Reducing the Decryption Process Time in ELiPS-Based CP-ABE Reviewed

Le Hoang Anh, Yuta Kawada, Samsul Huda, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

Journal of Advances in Information Technology   15 ( 6 )   748 - 755   2024.6

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Evaluation of IDS model by improving accuracy and reducing overfitting using stacking LSTM Reviewed

Muhammad Bisri Musthafa, Samsul Huda, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

IEEE 42nd International Conference on Consumer Electronics (ICCE 2024)   1 - 5   2024.1

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Performance Analysis of ELiPS-Based CP-ABE with Optimized Decryption Functions

Le Hoang Anh, Yuta Kawada, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

Smart Innovation, Systems and Technologies   404 SIST   345 - 354   2024

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CP-ABE emerges as an advanced cryptographic method that offers secure and precise access control in Internet of Things and cloud storage applications. Nevertheless, the original CP-ABE algorithm relied on the PBC library with a security level limited to 80 bits and is now outdated, making it vulnerable to attacks. To address this issue, we have introduced ELiPS-based CP-ABE, which boosts the level of security to 128 bits using the ELiPS library. While this enhancement improved the overall performance, the decryption functions remained computationally intensive. To tackle this, we previously optimized the decryption function by minimizing final exponentiations and inversions. In this paper, we evaluate and analyze the impact of these optimizations on decryption efficiency. Moreover, we compare the ELiPS-based CP-ABE with these improvements to the initial version and the original PBC-based CP-ABE. As a result, the combination of both optimization techniques resulted in an average 43.06% overall reduction in decryption time compared to the initial version of the ELiPS-based CP-ABE scheme, while in total execution, it led to a 25.27% improvement. Furthermore, there was an average 53.81% overall reduction in total execution time compared to the original PBC-based CP-ABE method.

DOI： 10.1007/978-981-97-5810-4_30

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Period and Some Distribution Properties of a Nonlinear Filter Generator with Dynamic Mapping Reviewed

Y. Kodera

IEICE Trans. Fundam.   E106-A ( 12 )   1511 - 1515   2023.12

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An implementation of ELiPS-based Ciphertext-Policy Attribute-Based Encryption Reviewed

Le Hoang Anh, Yuta Kawada, Samsul Huda, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

2023 Eleventh International Symposium on Computing and Networking Workshops (CANDARW)   220 - 226   2023.11

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DOI： 10.1109/candarw60564.2023.00044

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Existence of Equivalent Keys in a Random Number Generator with Field Trace and a Dynamic Mapping Reviewed

Itsuki Maebayashi, Yuki Takeuchi, Md. Arshad Ali, Yasuyuki Nogami, Yuta Kodera

CCIS (MobiSec 2023)   2095   109 - 120   2023.11

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Evaluation of machine learning based optimized feature selection approaches and classification methods for Intrusion Detection System Reviewed

Muhammad Bisri Musthafa, Md. Arshad Ali, Samsul Huda, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2023 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2023.7

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An Attack for a 116bit ECDLP for a Barreto-Naehrig Curve Reviewed

Takuro Manabe, Ken Ikuta, Sho Joichi, Hiromasa Miura, Shota Kanzawa, Yasuyuki Nogami, Yuta Kodera, Takuya Kusaka

2023 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2023.7

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A modified M-sequence with dynamic mapping and its autocorrelation Reviewed

Itsuki Maebayashi, Yuki Takeuchi, Md. Arshad Ali, Takuya Kusaka, Yasuyuki Nogami, Yuta Kodera

2023 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2023.7

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A Proposal for Efficient Multiplication and Inverse Calculation in Streamlined NTRU Prime Reviewed

Masakazu Awakihara, Jun Miura, Md. Arshad Ali, Takuya Kusaka, Yasuyuki Nogami, Yuta Kodera

2023 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2023.7

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A Consideration of Averaging the Calculation Cost of CVMA for A Secure Session based Data Transmission Reviewed

Akane Miyoshi, Kazuma Ikesaka, Md. Arshad Ali, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2023 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2023.7

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A Consideration of Parameters for a Nonlinear Filter Generator and its Linear Complexity Profile Reviewed

Yuki Takeuchi, Itsuki Maebayashi, Md. Arshad Ali, Takuya Kusaka, Yasuyuki Nogami, Yuta Kodera

2023 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2023.7

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Improvement of Miller Loop for a Pairing on FK12 Curve and Evaluation with other STNFS Curves. Reviewed

Kazuma Ikesaka, Yuki Nanjo, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

International Journal of Networking and Computing   13 ( 2 )   242 - 257   2023.7

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Other Link： https://dblp.uni-trier.de/db/journals/ijnc/ijnc13.html#IkesakaNKKN23

A Proposal of Eliminating Fruitless Cycle for Efficient Pollard’s Rho Method by Adding a Constant Rational Point Reviewed

Takuro Manabe, Shota Kanzawa, Md Arshad Ali, Yasuyuki Nogami, Yuta Kodera, Takuya Kusaka

The 38th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   864 - 869   2023.6

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Method to Eliminate Fruitless Cycles for Pollard’s Rho Method with Splitting Table Reviewed

Shota Kanzawa, Takuro Manabe, Yuta Kodera, Yasuyuki Nogami, Takuya Kusaka

The 38th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   870 - 874   2023.6

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A Proposal of Medical Information Management System Based on Consortium Blockchain Reviewed

Jie Yang, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

The 38th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   501 - 506   2023.6

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An Improvement of Algorithm for Computing Final Exponentiation for Pairing on KSS36 Curve and its Implementation Reviewed

Yuta Kawada, Kazuma Ikesaka, Md. Arshad Ali, Yuta Kodera, Yasuyuki Nogami

The 38th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   858 - 863   2023.6

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A Smart Contract Based Blockchain Approach Integrated with Elliptic Curve Cryptography for Secure Email Application.

Md. Biplob Hossain, Maya Rahayu, Ali Md. Arshad, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

CANDARW   195 - 201   2023

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DOI： 10.1109/CANDARW60564.2023.00040

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An integrated secured vehicular ad-hoc network leveraging Kerberos authentication and Blockchain technology.

Maya Rahayu, Md. Biplob Hossain, Ali Md. Arshad, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

CANDARW   260 - 266   2023

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DOI： 10.1109/CANDARW60564.2023.00050

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A Smart Contract Based Blockchain Approach Integrated with Elliptic Curve Cryptography for Secure Email Application

Md Biplob Hossain, Maya Rahayu, Md Arshad Ali, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

Proceedings - 2023 11th International Symposium on Computing and Networking Workshops, CANDARW 2023   195 - 201   2023

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In today's interconnected digital era, email stands as a primary platform for communication across various fields, such as business, academia, and personal interactions. Since it operates on shared mediums, email is inherently susceptible to interception and misuse of sensitive information. To cover this issue, Pretty Good Privacy (PGP) ensures the confidentiality of email contents. However, while PGP effectively encrypts the body of messages, a significant vulnerability emerges during key sharing. Blockchain technology comes with its immutability aspect. Once data is embedded into the blockchain, modifying it becomes exceedingly challenging. This makes it a potential safeguard against the vulnerabilities in PGP's key sharing mechanism. Additionally, smart contracts remove the requirement of a Man-in-the-Middle for sharing key, which enhances the sharing key's security and builds trust among users. In this paper, we integrate the strengths of blockchain into the PGP encryption process, specifically targeting the key sharing vulnerability. Also, we adopt Elliptic Curve Cryptography (ECC) to ensure the confidentiality of the PGP's key. First, generate the PGP's key. Then, encrypt it using ECC. After that, deploy a smart contract and continue with the encrypted PGP's key transactions in blockchain networks. Through this integration, we aim to enhance the security, ensuring both confidentiality and integrity of the PGP's key. We demonstrated that the proposed system is workable by experimental observation.

DOI： 10.1109/CANDARW60564.2023.00040

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An integrated secured vehicular ad-hoc network leveraging Kerberos authentication and Blockchain technology

Maya Rahayu, Md Biplob Hossain, Md Arshad Ali, Samsul Huda, Yuta Kodera, Yasuyuki Nogami

Proceedings - 2023 11th International Symposium on Computing and Networking Workshops, CANDARW 2023   260 - 266   2023

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Vehicular Ad-Hoc Networks (VANETs) are a prominent technology in the drive towards establishing smart transportation systems in the Digital Transformation (DX) era. These networks provide users with critical road information for optimal route selection and accident avoidance. However, the openness of VANETs environment makes them susceptible to various cyber threats. Therefore, authenticating the entities that join the network is necessary and crucial for ensuring the security and integrity of VANET communications. Kerberos is one of the authentication protocols that ensure security, as the password and key are never directly sent among the entities. However, ensuring secure and efficient authentication, especially in VANET handovers, remains a challenge. This paper introduces an innovative authentication system for VANETs that leverages the combined power of blockchain and Kerberos. The system stores Kerberos authenticator messages in a distributed ledger within the blockchain, accessible to Trusted Authorities (TAS) and all RSUs. This approach streamlines vehicle handovers and safeguards authenticator messages against adversarial tampering. It exhibits minimal signalling overhead and authentication delay, ensuring swift and secure authentication processes. We verify the proposal's effectiveness by simulating the VANETs environment with 100 vehicles, 4 RSUs, and 1 TAS using Omnet++ with the Tsushima, Japan area map.

DOI： 10.1109/CANDARW60564.2023.00050

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A Method to Eliminate Fruitless Cycles for Pollard’s Rho Method by Splitting a Seed-point Table for a Random Walk Reviewed

Shota Kanzawa, Hiromasa Miura, Yasuyuki Nogami, Yuta Kodera, Takuya Kusaka

Tenth International Symposium on Computing and Networking   110 - 116   2022.11

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Improvement of Optimal-Ate Pairing on Cocks-Pinch Curve with Embedding Degree 6 in Affine Coordinates Reviewed

Tomohiro Iida, Kazuma Ikesaka, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

Tenth International Symposium on Computing and Networking Workshops   309 - 315   2022.11

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Improvement of Miller Loop for a Pairing on FK12 Curve and its Implementation Reviewed

Kazuma Ikesaka, Yuki Nanjo, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

Tenth International Symposium on Computing and Networking   104 - 109   2022.11

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Design and implementation of a practical control system for an air-conditioner with IoT sensor nodes Reviewed

Mengfang Duan, Yuta Kodera, Nobuya Ishihara, Yasuyuki Nogami, Takuya Kusaka

The 37th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   1 - 6   2022.7

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DOI： 10.1109/itc-cscc55581.2022.9894933

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Effectiveness of a Method to Eliminate Fruitless Cycles for Pollard's Rho Method Reviewed

S. Kanzawa, H. Miura, Y. Kodera, Y. Nogami, T. Kusaka

The 37th International Technical Conference on Circuits/Systems, Computers and Communications   1 - 4   2022.7

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Comparison of Conversion Matrices for a Compact AES-CTR Defined over an Isomorphic Field Reviewed

Tomoya Hikida, Yasuyuki Nogami, Md. Arshad Ali, Yuta. Kodera

The 37th International Technical Conference on Circuits/Systems, Computers and Communications   249 - 252   2022.7

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A Consideration on Change the Transition Probability of SHAKE256 with Different Initial Values Reviewed

T. Ishida, R. Sato, Md. Arshad Ali, T. Kusaka, Y. Nogami, Y. Kodera

The 37th International Technical Conference on Circuits/Systems, Computers and Communications   219 - 222   2022.7

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Improvement of Final Exponentiation for a Pairing on FK12 Curve and its Implementation Reviewed

Kazuma Ikesaka, Yuki Nanjo, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The 37th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   205 - 208   2022.7

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DOI： 10.1109/itc-cscc55581.2022.9894996

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A Business-to-Business Collaboration System That Promotes Data Utilization While Encrypting Information on the Blockchain Reviewed

Hiroaki Nasu, Yuta Kodera, Yasuyuki Nogami

Sensors   22 ( 13 )   4909 - 4909   2022.6

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

Ensuring the reliability of data gathering from every connected device is an essential issue for promoting the advancement of the next paradigm shift, i.e., Industry 4.0. Blockchain technology is becoming recognized as an advanced tool. However, data collaboration using blockchain has not progressed sufficiently among companies in the industrial supply chain (SC) that handle sensitive data, such as those related to product quality, etc. There are two reasons why data utilization is not sufficiently advanced in the industrial SC. The first is that manufacturing information is top secret. Blockchain mechanisms, such as Bitcoin, which uses PKI, require plaintext to be shared between companies to verify the identity of the company that sent the data. Another is that the merits of data collaboration between companies have not been materialized. To solve these problems, this paper proposes a business-to-business collaboration system using homomorphic encryption and blockchain techniques. Using the proposed system, each company can exchange encrypted confidential information and utilize the data for its own business. In a trial, an equipment manufacturer was able to identify the quality change caused by a decrease in equipment performance as a cryptographic value from blockchain and to identify the change one month earlier without knowing the quality value.

DOI： 10.3390/s22134909

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Transition Probability Test for an RO-Based Generator and the Relevance between the Randomness and the Number of ROs Reviewed

Yuta Kodera, Ryoichi Sato, Md. Arshad Ali, Takuya Kusaka, Yasuyuki Nogami

Entropy   24 ( 6 )   1 - 13   2022.5

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A ring oscillator is a well-known circuit used for generating random numbers, and interested readers can find many research results concerning the evaluation of the randomness with a packaged test suit. However, the authors think there is room for evaluating the unpredictability of a sequence from another viewpoint. In this paper, the authors focus on Wold’s RO-based generator and propose a statistical test to numerically evaluate the randomness of the RO-based generator. The test adopts the state transition probabilities in a Markov process and is designed to check the uniformity of the probabilities based on hypothesis testing. As a result, it is found that the RO-based generator yields a biased output from the viewpoint of the transition probability if the number of ROs is small. More precisely, the transitions 01→01 and 11→11 happen frequently when the number l of ROs is less than or equal to 10. In this sense, l>10 is recommended for use in any application, though a packaged test suit is passed. Thus, the authors believe that the proposed test contributes to evaluating the unpredictability of a sequence when used together with available statistical test suits, such as NIST SP800-22.

DOI： 10.3390/e24060780

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A Business-to-Business Collaboration System That Promotes Data Utilization While Encrypting Information on the Blockchain Reviewed

H. Nasu, R. Miyamoto, Y. Kodera, Y. Nogami

World Academy of Science, Engineering and Technology, Open Science Index 183, International Journal of Information and Communication Engineering   16 ( 3 )   77 - 81   2022.3

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Efficient Final Exponentiation for Cyclotomic Families of Pairing-Friendly Elliptic Curves with Any Prime Embedding Degrees. Reviewed

Yuki Nanjo, Masaaki Shirase, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

International Journal of Networking and Computing   12 ( 2 )   317 - 338   2022

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Consideration of the side-channel attack to SIMON implemented on Arduino Uno. Reviewed

Harunobu Enami, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

Ninth International Symposium on Computing and Networking   412 - 415   2021.11

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/CANDARW53999.2021.00075

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Efficient Final Exponentiation for Pairings on Several Curves Resistant to Special TNFS. Reviewed

Yuki Nanjo, Masaaki Shirase, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

Ninth International Symposium on Computing and Networking(CANDAR)   48 - 55   2021.11

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/CANDAR53791.2021.00014

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Consideration of the side-channel attack to SPECK implemented on Arduino Uno. Reviewed

Masaki Nakanose, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

Ninth International Symposium on Computing and Networking   339 - 345   2021.11

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DOI： 10.1109/CANDARW53999.2021.00064

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Consideration for Affects of an XOR in a Random Number Generator Using Ring Oscillators. Reviewed

Ryoichi Sato, Yuta Kodera, Ali Md. Arshad, Takuya Kusaka, Yasuyuki Nogami, Robert H. Morelos-Zaragoza

Entropy   23 ( 9:1168 )   1 - 10   2021.9

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DOI： 10.3390/e23091168

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A Proposal for Testing Physical Random Numbers Using Stochastic Process Reviewed

Ryoichi Sato, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2021 IEEE International Conference on Consumer Electronics – Taiwan   1 - 2   2021.9

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DOI： 10.1109/ICCE-TW52618.2021.9603232

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Other Link： https://dblp.uni-trier.de/db/conf/icce-tw/icce-tw2021.html#SatoKKN21

A Property Management System Using Image Recognition by YOLO Reviewed

Taiki Miyamoto, Ryo Fukushima, Kazuaki Harada, Keiji Yoshimoto, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2021 IEEE International Conference on Consumer Electronics – Taiwan   1 - 2   2021.9

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DOI： 10.1109/ICCE-TW52618.2021.9603146

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Secure Comparison Protocol for Promoting Business to Business Collaboration on the Blockchain Reviewed

Hiroaki Nasu, Yuta Kodera, Yasuyuki. Nogami

2021 IEEE International Conference on Consumer Electronics – Taiwan   1 - 2   2021.9

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DOI： 10.1109/ICCE-TW52618.2021.9603017

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Consideration of Generating Suitable Parameters for Constructing type (h, m) Gauss Period Normal Basis Reviewed

Keiji Yoshimoto, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2021 IEEE International Conference on Consumer Electronics – Taiwan   1 - 2   2021.9

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DOI： 10.1109/ICCE-TW52618.2021.9603240

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Sophisticated analysis of a method to eliminate fruitless cycles for Pollard's rho method with skew Frobenius mapping over a Barreto-Naehrig curve Reviewed

Miura Hiromasa, Kanzawa Syota, Matsumura Rikuya, Kodera Yuta, Kusaka Takuya, Nogami Yasuyuki

International Journal of Networking and Computing   11 ( 2 )   231 - 250   2021.7

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In this paper, the authors focus on and propose an approach to attack a kind of pairing-friendly curves, the Barreto-Naehring (BN) curve, to accelerate the evaluation of the security level concerning the elliptic curve discrete logarithm problem (ECDLP). More precisely, this paper targets the BN curve, which is known to be a pairing-friendly curve, and Pollard's rho method based on the random-walk is adopted to attack the curve.Though Pollard's rho method with skew Frobenius mapping is known to solve the ECDLP efficiently, this approach sometimes induces the unsolvable cycle, called the fruitless cycle, and such trials must restart with a different starting point. However, any effective method to eliminate such fruitless cycles has not been proposed. Therefore, the authors focus and give the sophisticated analysis to propose an effective approach to eliminate such cycles to optimize Pollard's rho method furthermore. In addition, we confirm the effectiveness of the method by applying it to a BN curve with 12, 17, and 33-bit parameters.

DOI： 10.15803/ijnc.11.2_231

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Efficient Implementation of ECDH for Sigfox Communication Reviewed

Ryo Fukushima, Daichi Hattori, Wataru Takehisa, Ryoichi Sato, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The 36th International Technical Conference on Circuits/Systems, Computers and Communications   116 - 119   2021.6

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Calculation Costs Estimations of Final Exponentiation for Pairing-Friendly Elliptic Curves Resistant to Special TNFS Reviewed

Yuki Nanjo, Masaaki Shirase, Yuta Kodera, Takuya Kusaka, Yusyuki Nogami

The 36th International Technical Conference on Circuits/Systems, Computers and Communications   229 - 232   2021.6

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Proposal of Piccolo-CMAC for Sigfox network Reviewed

Wataru Takehisa, Ryo Fukushima, Ryoichi Sato, Daichi Hattori, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The 36th International Technical Conference on Circuits/Systems, Computers and Communications   120 - 123   2021.6

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A Discussion of Statistical Affect of Rotation and XOR on Non-linear Filters for Sequences Reviewed

Tugumi Takatani, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The 36th International Technical Conference on Circuits/Systems, Computers and Communications   316 - 319   2021.6

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A Construction Method of Final Exponentiation for a Specific Cyclotomic Family of Pairing-Friendly Elliptic Curves with Prime Embedding Degrees. Reviewed

Yuki Nanjo, Masaaki Shirase, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

Ninth International Symposium on Computing and Networking(CANDAR)   148 - 154   2021

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/CANDAR53791.2021.00028

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Path Authentication Protocol: Based on a Lightweight MAC and a Nonlinear Filter Generator Reviewed

Yuki Taketa, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

Silicon Valley Cybersecurity Conference 2020   CCIS 1383   38 - 48   2020.12

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

DOI： 10.1007/978-3-030-72725-3_3

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Other Link： https://dblp.uni-trier.de/db/conf/svcc/svcc2020.html#TaketaKKN20

Multiplication and squaring in cubic and quartic extensions for pairing based cryptography Reviewed

Yuta Kodera, Sylvain Duquesne, Yasuyuki Nogami

Finite Fields and their Applications   71 - 86   2020.10

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Authorship：Lead author   Language：English   Publishing type：Part of collection (book)   Publisher：De Gruyter  

DOI： 10.1515/9783110621730-006

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Other Link： https://www.degruyter.com/document/doi/10.1515/9783110621730-006/xml

A Parallel Blum-Micali Generator Based on the Gauss Periods Reviewed

Yuta Kodera, Tomoya Tatara, Takuya Kusaka, Yasuyuki Nogami, Satoshi Uehara

The International Symposium on Information Theory and Its Applications 2020   447 - 450   2020.10

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：The Institute of Electronics, Information and Communication Engineers  

DOI： 10.34385/proc.65.C04-1

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Equivalent Keys of a Nonlinear Filter Generator Using a Power Residue Symbol Reviewed

Yuta Kodera, Yuki Taketa, Takuya Kusaka, Yasuyuki Nogami, Satoshi Uehara

Advances in Information and Computer Security   LNCS 12231   23 - 36   2020.9

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DOI： 10.1007/978-3-030-58208-1_2

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Electrical Falsification of CAN Data by Magnetic Coupling Reviewed

Hiroto Ogura, Ryunosuke Isshiki, Kengo Iokibe, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The 35th International Technical Conference on Circuits/Systems, Computers and Communications   348 - 353   2020.7

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Controller Area Network (CAN) is widely employed as an in-vehicle network, and is required for extremely high reliability. CAN uses five mechanisms to detect errors caused by channel noises in CAN frames. However, an adversary can reportedly falsify a CAN frame by tampering with sample points in the frame. In this paper, the effectiveness of a new falsification method that does not require sample point tampering is proposed. In the method, transient electromagnetic pulses are injected into a CAN bus by magnetic coupling that enables falsification at the target CAN node without error detection. The proposed method was examined on a CAN bus which consists of two CAN nodes. As a result, the new falsification method was effective for CAN.

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Evaluating Side-Channel Resistance Using Low Order Rational Points Against Curve25519 and an Associated Quadratic Twist. Reviewed

Keiji Yoshimoto, Yoshinori Uetake, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

International Journal of Networking and Computing   10 ( 2 )   144 - 158   2020.7

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Algebraic Group Structure of the Random Number Generator: Theoretical Analysis of NTU Sequence(s) Reviewed

Yuta Kodera, Md. Arshad Ali, Takeru Miyazaki, Takuya Kusaka, Yasuyuki Nogami, Satoshi Uehara, Robert H. Morelos-Zaragoza

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences   E102-A ( 12 )   1659 - 1667   2019.12

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<p>An algebraic group is an essential mathematical structure for current communication systems and information security technologies. Further, as a widely used technology underlying such systems, pseudorandom number generators have become an indispensable part of their construction. This paper focuses on a theoretical analysis for a series of pseudorandom sequences generated by a trace function and the Legendre symbol over an odd characteristic field. As a consequence, the authors give a theoretical proof that ensures a set of subsequences forms a group with a specific binary operation.</p>

DOI： 10.1587/transfun.e102.a.1659

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Evaluating a Side-Channel Resistance against Order 4 Rational Points in Arduino Cryptography Library Reviewed

Keiji Yoshimoto, Yoshinori Uetake, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2019 Seventh International Symposium on Computing and Networking (CANDAR)   245 - 250   2019.11

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DOI： 10.1109/candar.2019.00040

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Decomposing the Inverse of a Masked Vector in an Isomorphic Galois Field for Perfectly Masked S-Box Reviewed

Yuta Kodera, Yuki Taketa, Takuya Kusaka, Yasuyuki Nogami

The Seventh International Symposium on Computing and Networking   157 - 163   2019.11

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DOI： 10.1109/candar.2019.00027

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A Side-Channel Attack Using Order 8 Rational Points against Curve25519 on an 8-Bit Microcontroller Reviewed

Yoshinori Uetake, Keiji Yoshimoto, Yuta Kodera, Leo Weissbart, Takuya Kusaka, Yasuyuki Nogami

The Seventh International Symposium on Computing and Networking   225 - 231   2019.11

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Among the increasing evolution of IoT devices, practical applications need reliable secure protocols to communicate with each other. A major issue for modern cryptosystems is an implementation of secure and trustworthy mechanisms to rely on. A side-channel attack against these cryptosystems may overturn the guarantee of security against conventional cyber-attacks. Elliptic curve cryptography is public-key cryptography based on elliptic curves, and one of the well-known curves is Curve25519 which is used for TLS protocols as a recommended curve. This curve is mainly implemented on limited resource devices such as microcontrollers. However, this curve poses a weakness for low-order points during a Diffie-Hellman key exchange is employed. This research demonstrates possible exploitation of a threat of order 8 rational points of Curve25519 and shows results of the side-channel attacks using order 8 rational points on an embedded system. The results indicate the order 8 rational points might be applied to key extraction as attacker sides.

DOI： 10.1109/candar.2019.00037

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An Analysis of Computational Complexity of Low Level Quantizers for Block Turbo Decoding for Product Codes of Binary Linear Code Reviewed

Shinichi Kageyama, Ken Ikuta, Yuki Nanjo, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The Seventh International Symposium on Computing and Networking Workshops   425 - 429   2019.11

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DOI： 10.1109/candarw.2019.00080

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Mutual Relationship between the Neural Network Model and Linear Complexity for Pseudorandom Binary Number Sequence Reviewed

Yuki Taketa, Yuta Kodera, Shogo Tanida, Takuya Kusaka, Yasuyuki Nogami, Norikazu Takahashi, Satoshi Uehara

The Seventh International Symposium on Computing and Networking Workshops   394 - 400   2019.11

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Machine learning (ML) technology has been getting popular in many applications where ML purposes to analyze or classify data, or predicting the phenomenon follows from the previous conditions, for example. However, the spread of ML technologies allows an attacker to use them into the attack for the sake of sniffing secret information. Since the randomness has been used for an inseparable part of the cryptographic applications to ensure the security, the resistance of a random sequence against analysis based on the ML technologies have to be required. The authors anticipate having the mutual relationship between the classical properties of the randomness, linear complexity (LC) in particular, and the structure of a neural network (NN), which is a class of ML. In this research, the authors find that the strength of each connection between nodes in the NN is relevant to the linear recurrence relation of the target sequence by observing parameters after complete learning. In other words, the difficulty of predicting the next bits from a given sequence would be discussed based on the LC of a sequence in most cases. The experimental results are introduced to clarify the black box in this research.

DOI： 10.1109/candarw.2019.00074

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Advanced Searchable Encryption: An Adaptively Secure Keyword Search for Matrix-type Storages Reviewed

Yuta Kodera, Minoru Kuribayashi, Takuya Kusaka, Yasuyuki Nogami

International Journal of Networking and Computing   9 ( 2 )   171 - 187   2019.9

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DOI： 10.15803/ijnc.9.2_171

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A Construction of a Keyword Search to Allow Partial Matching with a Block Cipher Reviewed

Yuta Kodera, Minoru Kuribayashi, Takuya Kusaka, Yasuyuki Nogami

Information Security Applications   LNCS 11402   241 - 252   2019.8

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Authorship：Lead author   Language：English   Publishing type：Part of collection (book)   Publisher：Springer International Publishing  

DOI： 10.1007/978-3-030-17982-3_19

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Multi-Value Sequence Generated over Sub Extension Field and Its Properties Reviewed

Md. Arshad Ali, Yuta Kodera, Takuya Kusaka, Satoshi Uehara, Yasuyuki Nogami, Robert H. Morelos-Zaragoza

Journal of Information Security   10 ( 03 )   130 - 154   2019.7

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Scientific Research Publishing, Inc.  

DOI： 10.4236/jis.2019.103008

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Well Balanced Multi-value Sequence and its Properties Over Odd Characteristic Field Reviewed

Md. Arshad Ali, Yuta Kodera, Md. Fazle Rabbi, Takuya Kusaka, Yasuyuki Nogami, Satoshi Uehara, Robert H. Morelos-Zaragoza

Advances in Science, Technology and Engineering Systems Journal   4 ( 4 )   188 - 196   2019.7

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：ASTES Journal  

The authors propose a well balanced multi-value sequence (including a binary sequence). All the sequence coefficients (except the zero) appear almost the same in number, thus, the proposed sequence is so called the well balanced sequence. This paper experimentally describes some prominent features regarding a sequence, for instance, its period, autocorrelation, and cross-correlation. The value of the autocorrelation and cross-correlation can be explicitly given by the authors formulated theorems. In addition, to ensure the usability of the proposed multi-value sequence, the authors introduce its flexibility by making it a binary sequence. Furthermore, this paper also introduces a comparison in terms of the linear complexity and distribution of bit patterns properties with their previous works. According to the comparison results, the proposed sequence holds better properties compared to our previous sequence.

DOI： 10.25046/aj040423

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Updating A Secret Key for MAC Implemented on CAN Using Broadcast Encryption Scheme Reviewed

Tomoya Tatara, Hiroto Ogura, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

The 34th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   166 - 169   2019.6

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DOI： 10.1109/itc-cscc.2019.8793298

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A Comparison of Relic-toolkit and ELiPS Libraries for a Pairing-based Homomorphic Encryption Reviewed

Tadaki Kanenari, Yuto Takahashi, Yuta Hashimoto, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami, Toru Nakanishi

The 34th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   158 - 161   2019.6

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DOI： 10.1109/itc-cscc.2019.8793446

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NIST Statistical Test for Random Sequence Generated by Möbius Function Reviewed

Fatema Akhter, Yuta Kodera, Yasuyuki Nogami, Takuya Kusaka

2019 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2019.5

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/icce-tw46550.2019.8992033

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A Consideration on Generating Uniform Binary Sequence with High Linear Complexity Reviewed

Tomoya Tatara, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2019 IEEE International Conference on Consumer Electronics - Taiwan   2019.5

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DOI： 10.1109/icce-tw46550.2019.8991711

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Boundary for the Linear Complexity of Well Balanced NTU Reviewed

Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami

2019 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)   2019.5

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DOI： 10.1109/icce-tw46550.2019.8992029

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Distribution of Bit Patterns in Binary Sequence Generated Over Sub Extension Field Reviewed

Md. Arshad Ali, Yuta Kodera, Takuya Kusaka, Yasuyuki Nogami, Satoshi Uehara, Robert H. Morelos-Zaragoza

Advances in Science, Technology and Engineering Systems Journal   4 ( 2 )   370 - 379   2019.4

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The distribution of bit patterns is an important measure to check the randomness of a sequence. The authors of this paper observed this crucial property in a binary sequence which generated by using a primitive polynomial, trace function, and Legendre symbol defined over the sub extension field. The authors create a new dimension in the sequence generation research area by considering the sub extension field, whereas all our previous works are focused in the prime field. In terms of distribution of bit patterns property, this research work has notable outcomes more specifically the binary sequence (defined over the sub extension field) holds much better (close to uniform) bit distribution than the previous binary sequence (defined over the prime field). Furthermore, the authors theoretically proved the distribution of bit property in this paper.

DOI： 10.25046/aj040246

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Bit Distribution of Binary Sequence Generated by Trace Function and Legendre Symbol Over Sub Extension Field Reviewed

Md. Arshad Ali, Yuta Kodera, Shoji Heguri, Takuya Kusaka, Satoshi Uehara, Robert H. Morelos-Zaragoza

The 6th International Conference on Information Technology: IoT and Smart City   92 - 96   2018.12

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ACM Press  

The authors of this paper have observed the distribution of bit patterns property of a binary sequence which is generated by using a primitive polynomial, trace function, and Legendre symbol over the sub extension field. However, one of the most important measure for evaluating the randomness of a sequence which is so called the distribution of bit patterns still has not been investigated. This paper focused on the distribution of bit patterns based on some experimental results. After observing many experimental results, the authors found that the number of appearance of each bit pattern is related to the number of zeros contained in each bit pattern. Furthermore, the authors formulated an equation to explain the distribution of bit patterns in a binary sequence.

DOI： 10.1145/3301551.3301562

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Advanced Searchable Encryption: Keyword Search for Matrix-Type Storage Reviewed

Yuta Kodera, Minoru Kuribayashi, Takuya Kusaka, Yasuyuki Nogami

The Sixth International Symposium on Computing and Networking Workshops (CANDARW)   292 - 297   2018.11

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The recent development of IoT technologies and cloud storages, many types of information including private information have been gradually outsourced. For such a situation, new convenient functionalities such as arithmetic and keyword search on ciphertexts are required to allow users to retrieve information without leaking any information. Especially, searchable encryptions have been paid much attention to realize a keyword search on an encrypted domain. In addition, an architecture of searchable symmetric encryption (SSE) is a suitable and efficient solution for data outsourcing.In this paper, we focus on an SSE scheme which employs a secure index for searching a keyword with optimal search time. In the conventional studies, it has been widely considered that the scheme searches whether a queried keyword is contained in encrypted documents. On the other hand, we additionally take into account the location of a queried keyword in documents by targeting a matrix-type data format. It enables a manager to search personal information listed per line or column in CSV-like format data.

DOI： 10.1109/candarw.2018.00061

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Distribution of Digit Patterns in Multi-Value Sequence over the Odd Characteristic Field Reviewed

Yuta Kodera, Takeru Miyazaki, Md. Al-Amin Khandaker, Md. Arshad Ali, Takuya Kusaka, Yasuyuki Nogami, Satoshi Uehara

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences   E101-A ( 9 )   1525 - 1536   2018.9

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Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Institute of Electronics, Information and Communications Engineers (IEICE)  

DOI： 10.1587/transfun.e101.a.1525

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An Implementation of ECC with Twisted Montgomery Curve over 32nd Degree Tower Field on Arduino Uno. Reviewed

Yuta Hashimoto, Md. Al-Amin Khandaker, Yuta Kodera, Taehwan Park, Takuya Kusaka, Howon Kim, Yasuyuki Nogami

International Journal of Networking and Computing   8 ( 2 )   341 - 350   2018.7

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Linear Complexity of Pseudo-random Binary Sequence Generated Over Proper Sub Extension Field Reviewed

Md. Arshad Ali, Yuta Kodera, Takuya Kusaka, Takeru Miyazaki, Yasuyuki Nogami, Satoshi Uehara, Robert H. Morelos-Zaragoza

The 33th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)   448 - 451   2018.7

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Relation between the Irreducible Polynomials that Generates the Same Binary Sequence Over Odd Characteristic Field Reviewed

Md. Arshad Ali, Yuta Kodera, Taehwan Park, Takuya Kusaka, Yasuyuki Nogmi, Howon Kim

Journal of information and communication convergence engineering   16 ( 3 )   166 - 172   2018.6

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A pseudo-random sequence generated by using a primitive polynomial, trace function, and Legendre symbol has been researched in our previous work. Our previous sequence has some interesting features such as period, autocorrelation, and linear complexity. A pseudo-random sequence widely used in cryptography. However, from the aspect of the practical use in cryptographic systems sequence needs to generate swiftly. Our previous sequence generated by utilizing a primitive polynomial, however, finding a primitive polynomial requires high calculating cost when the degree or the characteristic is large. It's a shortcoming of our previous work. The main contribution of this work is to find some relation between the generated sequence and irreducible polynomials. The purpose of this relationship is to generate the same sequence without utilizing a primitive polynomial. From the experimental observation, it is found that there are (p - 1)/2 kinds of polynomial, which generates the same sequence. In addition, some of these polynomials are non-primitive polynomial. In this paper, these relationships between the sequence and the polynomials are shown by some examples. Furthermore, these relationships are proven theoretically also.

DOI： 10.6109/jicce.2018.16.3.166

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Evaluating the Maximum Order Complexity of a Uniformly distributed Sequence over Odd Characteristic Reviewed

Yuta Kodera, Takuya Kusaka, Takeru Miyazaki, Yasuyuki Nogamit, Satoshi Uehara, Robert H. Morelos-Zaragoza

2018 IEEE International Conference on Consumer Electronics – Taiwan   2018.5

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A Consideration of an Efficient Arithmetic over the Extension Field of Degree 3 for Elliptic Curve Pairing Cryptography Reviewed

Xin Li, Yuta Kodera, Yoshinori Uetake, Takuya Kusaka, Yasuyuki Nogami

2018 IEEE International Conference on Consumer Electronics – Taiwan   2018.5

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Uniform Binary Sequence Generated over Odd Characteristic Field Reviewed

Yuta Kodera, Takuya Kusaka, Ali Md. Arshad, Yasuyuki Nogami, Takeru Miyazak, Satoshi Uehara

International Journal of Information and Electronics Engineering   8 ( 1 )   5 - 9   2018.3

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DOI： 10.18178/ijiee.2018.8.1.685

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Efficient Optimal Ate Pairing at 128-Bit Security Level Reviewed

Md. Al-Amin Khandaker, Yuki Nanjo, Loubna Ghammam, Sylvain Duquesne, Yasuyuki Nogami, Yuta Kodera

INDOCRYPT 2017   LNCS 10698   186 - 205   2017.12

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Following the emergence of Kim and Barbulescu's new number field sieve (exTNFS) algorithm at CRYPTO'16 [21] for solving discrete logarithm problem (DLP) over the finite field; pairing-based cryptography researchers are intrigued to find new parameters that confirm standard security levels against exTNFS. Recently, Barbulescu and Duquesne have suggested new parameters [3] for well-studied pairing-friendly curves i.e., Barreto-Naehrig (BN) [5], Barreto-Lynn-Scott (BLS12) [4] and Kachisa-Schaefer-Scott (KSS-16) [19] curves at 128-bit security level (twist and sub-group attack secure). They have also concluded that in the context of Optimal-Ate pairing with their suggested parameters, BLS-12 and KSS-16 curves are more efficient choices than BN curves. Therefore, this paper selects the atypical and less studied pairingfriendly curve in literature, i.e., KSS-16 which offers quartic twist, while BN and BLS-12 curves have sextic twist. In this paper, the authors optimize Miller's algorithm of Optimal-Ate pairing for the KSS-16 curve by deriving efficient sparse multiplication and implement them. Furthermore, this paper concentrates on the Miller's algorithm to experimentally verify Barbulescu et al.'s estimation. The result shows that Miller's algorithm time with the derived pseudo 8-sparse multiplication is most efficient for KSS-16 than other two curves. Therefore, this paper defends Barbulescu and Duquesne's conclusion for 128-bit security.

DOI： 10.1007/978-3-319-71667-1_10

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An ECC Implementation with a Twisted Montgomery Curve over Fq32 on an 8-Bit Microcontroller Reviewed

Yuta Hashimoto, Md. Al-Amin Khandaker, Yuta Kodera, Taehwan Park, Takuya Kusaka, Howon Kim, Yasuyuki Nogami

The Fifth International Symposium on Computing and Networking   283 - 294   2017.11

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/candar.2017.90

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An Efficient Implementation of Trace Calculation over Finite Field for a Pseudorandom Sequence Reviewed

Yuta Kodera, Takuya Kusaka, Takeru Miyazaki, Md. Al-Amin Khandaker, Yasuyuki Nogami, Satoshi Uehara

The Fifth International Symposium on Computing and Networking   451 - 455   2017.11

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DOI： 10.1109/candar.2017.86

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Distribution of bit patterns on multi-value sequence over odd characteristics field Reviewed

Yuta Kodera, Takeru Miyazaki, Md. Al-Amin Khandaker, Ali Md. Arshad, Yasuyuki Nogami, Satoshi Uehara

2017 IEEE International Conference on Consumer Electronics - Taiwan   2017.6

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/icce-china.2017.7991033

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Efficient Optimal Ate Pairing at 128-Bit Security Level.

Md. Al-Amin Khandaker, Yuki Nanjo, Loubna Ghammam, Sylvain Duquesne, Yasuyuki Nogami, Yuta Kodera

Progress in Cryptology - INDOCRYPT 2017 - 18th International Conference on Cryptology in India(INDOCRYPT)   186 - 205   2017

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Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

DOI： 10.1007/978-3-319-71667-1_10

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Other Link： https://dblp.uni-trier.de/db/conf/indocrypt/indocrypt2017.html#KhandakerNGDNK17

A Consideration of an Efficient Calculation over the Extension Field of Degree 3 and 4 for Elliptic Curve Pairing Cryptography Reviewed

Akihiro Sanada, Yuta Kodera, Yasuyuki Nogami, Sylvain Duquesne, Masaaki Shirase

The International Symposium on Information Theory and Its Applications 2016   2016.10

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Language：English   Publishing type：Research paper (other academic)  

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