Hajime Watanabe

Publication Activity (10 Years)

Years Active: 1997-2018
Publications (10 Years): 7

Top Topics

Mutual Authentication

Tensor Factorization

Top Venues

Publications

Hajime Watanabe, Mondher Bouazizi, Tomoaki Ohtsuki
Hate Speech on Twitter: A Pragmatic Approach to Collect Hateful and Offensive Expressions and Perform Hate Speech Detection. IEEE Access 6 (2018)
Nuttapong Attrapadung, Goichiro Hanaoka, Kazuto Ogawa, Go Ohtake, Hajime Watanabe, Shota Yamada
Attribute-Based Encryption for Range Attributes. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2018)
Yutaka Oiwa, Hajime Watanabe, Hiromitsu Takagi, Kaoru Maeda, Tatsuya Hayashi, Yuichi Ioku
HTTP Authentication Extensions for Interactive Clients. RFC 8053 (2017)
Yutaka Oiwa, Hajime Watanabe, Hiromitsu Takagi, Kaoru Maeda, Tatsuya Hayashi, Yuichi Ioku
Mutual Authentication Protocol for HTTP. RFC 8120 (2017)
Yutaka Oiwa, Hajime Watanabe, Hiromitsu Takagi, Kaoru Maeda, Tatsuya Hayashi, Yuichi Ioku
Mutual Authentication Protocol for HTTP: Cryptographic Algorithms Based on the Key Agreement Mechanism 3 (KAM3). RFC 8121 (2017)
Takao Murakami, Hajime Watanabe
Localization Attacks Using Matrix and Tensor Factorization. IEEE Trans. Inf. Forensics Secur. 11 (8) (2016)
Nuttapong Attrapadung, Goichiro Hanaoka, Kazuto Ogawa, Go Ohtake, Hajime Watanabe, Shota Yamada
Attribute-Based Encryption for Range Attributes. SCN (2016)
Michitomo Yamaguchi, Toru Nakata, Hajime Watanabe, Takeshi Okamoto, Hiroaki Kikuchi
Vulnerability of the conventional accessible CAPTCHA used by the White House and an alternative approach for visually impaired people. SMC (2014)
Takao Murakami, Hajime Watanabe
Location prediction attacks using tensor factorization and optimal defenses. IEEE BigData (2014)
Go Ohtake, Yuki Hironaka, Kenjiro Kai, Yosuke Endo, Goichiro Hanaoka, Hajime Watanabe, Shota Yamada, Kohei Kasamatsu, Takashi Yamakawa, Hideki Imai
Partially Wildcarded Attribute-based Encryption and Its Efficient Construction. SECRYPT (2013)
Miodrag J. Mihaljevic, Hideki Imai, Michael W. David, Kazukuni Kobara, Hajime Watanabe
On advanced cryptographic techniques for information security of smart grid AMI. CSIIRW (2011)
Arisa Fujii, Go Ohtake, Goichiro Hanaoka, Nuttapong Attrapadung, Hajime Watanabe, Kazuto Ogawa, Hideki Imai
Secure Broadcast System with Simultaneous Individual Messaging. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2011)
Miodrag J. Mihaljevic, Hajime Watanabe, Hideki Imai
A low complexity authentication protocol based on pseudorandomness, randomness and homophonic coding. ISITA (2010)
Koji Nuida, Satoshi Fujitsu, Manabu Hagiwara, Takashi Kitagawa, Hajime Watanabe, Kazuto Ogawa, Hideki Imai
An improvement of discrete Tardos fingerprinting codes. Des. Codes Cryptogr. 52 (3) (2009)
Koji Nuida, Satoshi Fujitsu, Manabu Hagiwara, Hideki Imai, Takashi Kitagawa, Kazuto Ogawa, Hajime Watanabe
An Efficient 2-Secure and Short Random Fingerprint Code and Its Security Evaluation. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2009)
Yutaka Oiwa, Hiromitsu Takagi, Hajime Watanabe, Hirofumi Suzuki
PAKE-based mutual HTTP authentication for preventing phishing attacks. WWW (2009)
Yutaka Oiwa, Hajime Watanabe, Hiromitsu Takagi
PAKE-based mutual HTTP authentication for preventing phishing attacks CoRR (2009)
Goichiro Hanaoka, Hideki Imai, Kazuto Ogawa, Hajime Watanabe
Chosen Ciphertext Secure Public Key Encryption with a Simple Structure. IWSEC (2008)
Koji Nuida, Satoshi Fujitsu, Manabu Hagiwara, Takashi Kitagawa, Hajime Watanabe, Kazuto Ogawa, Hideki Imai
An improvement of discrete Tardos fingerprinting codes. IACR Cryptol. ePrint Arch. 2008 (2008)
Koji Nuida, Satoshi Fujitsu, Manabu Hagiwara, Takashi Kitagawa, Hajime Watanabe, Kazuto Ogawa, Hideki Imai
An Improvement of Tardos's Collusion-Secure Fingerprinting Codes with Very Short Lengths. AAECC (2007)
Koji Nuida, Manabu Hagiwara, Hajime Watanabe, Hideki Imai
Optimization of Tardos's Fingerprinting Codes in a Viewpoint of Memory Amount. Information Hiding (2007)
Yutaka Oiwa, Kazukuni Kobara, Hajime Watanabe
A New Variant for an Attack Against RSA Signature Verification Using Parameter Field. EuroPKI (2007)
Satoshi Fujitsu, Koji Nuida, Manabu Hagiwara, Takashi Kitagawa, Hajime Watanabe, Kazuto Ogawa, Hideki Imai
A Tracing Algorithm for Short 2-Secure Probabilistic Fingerprinting Codes Strongly Protecting Innocent Users. CCNC (2007)
Goichiro Hanaoka, Yumiko Hanaoka, Manabu Hagiwara, Hajime Watanabe, Hideki Imai
Unconditionally Secure Chaffing-and-Winnowing: A Relationship Between Encryption and Authentication. AAECC (2006)
Takashi Kitagawa, Peng Yang, Goichiro Hanaoka, Rui Zhang, Hajime Watanabe, Kanta Matsuura, Hideki Imai
Generic Transforms to Acquire CCA-Security for Identity Based Encryption: The Cases of FOpkc and REACT. ACISP (2006)
Koji Nuida, Manabu Hagiwara, Hajime Watanabe, Hideki Imai
Optimal probabilistic fingerprinting codes using optimal finite random variables related to numerical quadrature CoRR (2006)
Hajime Watanabe, Takashi Kitagawa
-Secure CRT Code. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (10) (2003)
Madoka Hasegawa, Hajime Watanabe, Takashi Yamada, Shigeo Kato
Watermarking method for extracting embedded data without original image. VCIP (2002)
Hajime Watanabe, Takashi Kitagawa
An ID Coding Scheme for Fingerprinting, Randomized c-Secure CRT Code. ICICS (2002)
Hajime Watanabe, Tadao Kasami
A secure code for recipient watermarking against conspiracy attacks by all users. ICICS (1997)