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1,412 results on '"Sakurai, Kouichi"'

51. Constructions of Secret Sharing Schemes – Accommodating New Parties

Author

Chaudhury, Shion Samadder, Dutta, Sabyasachi, Sakurai, Kouichi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Kutyłowski, Mirosław, editor, Zhang, Jun, editor, and Chen, Chao, editor

Published
2020
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52. Color Visual Cryptography Schemes Using Linear Algebraic Techniques over Rings

Author

Dutta, Sabyasachi, Sardar, Md Kutubuddin, Adhikari, Avishek, Ruj, Sushmita, Sakurai, Kouichi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Kanhere, Salil, editor, Patil, Vishwas T, editor, Sural, Shamik, editor, and Gaur, Manoj S, editor

Published
2020
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53. 3-Party Adversarial Steganography

Author

Meraouche, Ishak, Dutta, Sabyasachi, Sakurai, Kouichi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, and You, Ilsun, editor

Published
2020
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54. Secret Sharing on Evolving Multi-level Access Structure

Author

Dutta, Sabyasachi, Roy, Partha Sarathi, Fukushima, Kazuhide, Kiyomoto, Shinsaku, Sakurai, Kouichi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, and You, Ilsun, editor

Published
2020
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55. An Efficient Detection Mechanism of Network Intrusions in IoT Environments Using Autoencoder and Data Partitioning.

Author

Xiao, Yiran, Feng, Yaokai, and Sakurai, Kouichi

Subjects
MACHINE learning, DISTRIBUTED computing, INTERNET of things, INTRUSION detection systems (Computer security), SPEED, CLASSIFICATION
Abstract

In recent years, with the development of the Internet of Things and distributed computing, the "server-edge device" architecture has been widely deployed. This study focuses on leveraging autoencoder technology to address the binary classification problem in network intrusion detection, aiming to develop a lightweight model suitable for edge devices. Traditional intrusion detection models face two main challenges when directly ported to edge devices: inadequate computational resources to support large-scale models and the need to improve the accuracy of simpler models. To tackle these issues, this research utilizes the Extreme Learning Machine for its efficient training speed and compact model size to implement autoencoders. Two improvements over the latest related work are proposed: First, to improve data purity and ultimately enhance detection performance, the data are partitioned into multiple regions based on the prediction results of these autoencoders. Second, autoencoder characteristics are leveraged to further investigate the data within each region. We used the public dataset NSL-KDD to test the behavior of the proposed mechanism. The experimental results show that when dealing with multi-class attacks, the model's performance was significantly improved, and the accuracy and F1-Score were improved by 3.5% and 2.9%, respectively, maintaining its lightweight nature. [ABSTRACT FROM AUTHOR]

Published
2024
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56. Analysis of Variance of Graph-Clique Mining for Scalable Proof of Work

Author

Anada, Hiroaki, Matsushima, Tomohiro, Su, Chunhua, Meng, Weizhi, Kawamoto, Junpei, Bag, Samiran, Sakurai, Kouichi, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Guo, Fuchun, editor, Huang, Xinyi, editor, and Yung, Moti, editor

Published
2019
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58. Secured tracing for group signatures from attribute‐based encryption.

Author

Perera, Maharage Nisansala Sevwandi, Matsunaka, Takashi, Yokoyama, Hiroyuki, and Sakurai, Kouichi

Subjects
DIGITAL signatures, FORGERY
Abstract

Summary: This article presents a tracing mechanism for group signatures answering the security threats of malicious authorities and users' forgeries. The proposal weakens the high trust placed on the centralized tracing party in previous group signatures by decentralizing tracing power using a multiple tracer setting and limiting the tracers' access using attribute‐based encryption and the requirement of the group manager's agreement. We allow the group manager to control tracers identifying his group users. Instead of a centralized tracer, our setting has multiple tracers possessing attribute sets. Thus, after getting the group manager's permission, a tracer should satisfy the access policy in a given signature to identify the signer. On the other hand, our group signature scheme decentralizes the tracing key generation and removes the group manager's tracing ability. Thus, it ensures that only the attribute‐satisfying and permitted tracers can identify the signer. Moreover, this article delivers security against malicious users. It presents a verification process of access policy of the signatures to prevent users from utilizing invalid attributes for signing. In addition, the article delivers a collaborative tracing mechanism to satisfy attribute sets that a tracer fails to fulfill alone for identifying a signer. Thus, our tracing mechanism ensures security against malicious authorities and group users in group signatures. The article gives the general construction of the scheme and discusses the security. [ABSTRACT FROM AUTHOR]

Published
2024
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61. Hierarchical Secret Sharing Schemes Secure Against Rushing Adversary: Cheater Identification and Robustness

Author

Roy, Partha Sarathi, Dutta, Sabyasachi, Morozov, Kirill, Adhikari, Avishek, Fukushima, Kazuhide, Kiyomoto, Shinsaku, Sakurai, Kouichi, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Su, Chunhua, editor, and Kikuchi, Hiroaki, editor

Published
2018
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62. Secret Sharing Schemes on Compartmental Access Structure in Presence of Cheaters

Author

Pramanik, Jyotirmoy, Roy, Partha Sarathi, Dutta, Sabyasachi, Adhikari, Avishek, Sakurai, Kouichi, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Ganapathy, Vinod, editor, Jaeger, Trent, editor, and Shyamasundar, R.K., editor

Published
2018
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66. A Detection System for Distributed DoS Attacks Based on Automatic Extraction of Normal Mode and Its Performance Evaluation

Author

Feng, Yaokai, Hori, Yoshiaki, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wang, Guojun, editor, Atiquzzaman, Mohammed, editor, Yan, Zheng, editor, and Choo, Kim-Kwang Raymond, editor

Published
2017
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67. Evasion Attacks Against Statistical Code Obfuscation Detectors

Author

Su, Jiawei, Vargas, Danilo Vasconcellos, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Obana, Satoshi, editor, and Chida, Koji, editor

Published
2017
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68. A Behavior-Based Online Engine for Detecting Distributed Cyber-Attacks

Author

Feng, Yaokai, Hori, Yoshiaki, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Choi, Dooho, editor, and Guilley, Sylvain, editor

Published
2017
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69. On the Robustness of Visual Cryptographic Schemes

Author

Dutta, Sabyasachi, Roy, Partha Sarathi, Adhikari, Avishek, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Shi, Yun Qing, editor, Kim, Hyoung Joong, editor, Perez-Gonzalez, Fernando, editor, and Liu, Feng, editor

Published
2017
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83. Yet Another Note on Block Withholding Attack on Bitcoin Mining Pools

Author

Bag, Samiran, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bishop, Matt, editor, and Nascimento, Anderson C A, editor

Published
2016
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84. On the Application of Clique Problem for Proof-of-Work in Cryptocurrencies

Author

Bag, Samiran, Ruj, Sushmita, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Lin, Dongdai, editor, Wang, XiaoFeng, editor, and Yung, Moti, editor

Published
2016
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85. Application of NTRU Using Group Rings to Partial Decryption Technique

Author

Yasuda, Takanori, Anada, Hiroaki, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Yung, Moti, editor, Zhang, Jianbiao, editor, and Yang, Zhen, editor

Published
2016
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86. Computational Soundness of Uniformity Properties for Multi-party Computation Based on LSSS

Author

Zhao, Hui, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Yung, Moti, editor, Zhang, Jianbiao, editor, and Yang, Zhen, editor

Published
2016
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87. Attribute-Based Two-Tier Signatures: Definition and Construction

Author

Anada, Hiroaki, Arita, Seiko, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Kwon, Soonhak, editor, and Yun, Aaram, editor

Published
2016
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88. A Multivariate Encryption Scheme with Rainbow

Author

Yasuda, Takanori, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Qing, Sihan, editor, Okamoto, Eiji, editor, Kim, Kwangjo, editor, and Liu, Dongmei, editor

Published
2016
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89. Efficient Threshold Secret Sharing Schemes Secure Against Rushing Cheaters

Author

Adhikari, Avishek, Morozov, Kirill, Obana, Satoshi, Roy, Partha Sarathi, Sakurai, Kouichi, Xu, Rui, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Nascimento, Anderson C.A., editor, and Barreto, Paulo, editor

Published
2016
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90. Expressive Rating Scheme by Signatures with Predications on Ratees

Author

Anada, Hiroaki, Ruj, Sushmita, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Chen, Jiageng, editor, Piuri, Vincenzo, editor, Su, Chunhua, editor, and Yung, Moti, editor

Published
2016
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91. Securing Sensor Networks by Moderating Frequencies

Author

Sarkar, Pinaki, Mahish, Priyatosh, Chowdhury, Morshed Uddin, Sakurai, Kouichi, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Coulson, Geoffrey, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin Sherman, Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert Y., Series editor, Tian, Jin, editor, Jing, Jiwu, editor, and Srivatsa, Mudhakar, editor

Published
2015
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93. Identity-Embedding Method for Decentralized Public-Key Infrastructure

Author

Anada, Hiroaki, Kawamoto, Junpei, Weng, Jian, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Yung, Moti, editor, Zhu, Liehuang, editor, and Yang, Yanjiang, editor

Published
2015
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94. Hybrid Encryption Scheme Using Terminal Fingerprint and Its Application to Attribute-Based Encryption Without Key Misuse

Author

Chen, Chunlu, Anada, Hiroaki, Kawamoto, Junpei, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Khalil, Ismail, editor, Neuhold, Erich, editor, Tjoa, A Min, editor, Xu, Li Da, editor, and You, Ilsun, editor

Published
2015
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95. Reconstructing and Visualizing Evidence of Artifact from Firefox SessionStorage

Author

Matsumoto, Shinichi, Onitsuka, Yuya, Kawamoto, Junpei, Sakurai, Kouichi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Rhee, Kyung-Hyune, editor, and Yi, Jeong Hyun, editor

Published
2015
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98. Ciphertext-Auditable Public Key Encryption

Author

Hada, Satoshi, Sakurai, Kouichi, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Yoshiura, Hiroshi, editor, Sakurai, Kouichi, editor, Rannenberg, Kai, editor, Murayama, Yuko, editor, and Kawamura, Shinichi, editor

Published
2006
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