Kazuto Ogawa

	2009
17		Go Ohtake, Arisa Fujii, Goichiro Hanaoka, Kazuto Ogawa: On the Theoretical Gap between Group Signatures with and without Unlinkability. AFRICACRYPT 2009: 149-166
16		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 Transactions 92-A(1): 197-206 (2009)
15		Go Ohtake, Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai: A Trade-off Traitor Tracing Scheme. IEICE Transactions 92-D(5): 859-875 (2009)
	2008
14		Go Ohtake, Goichiro Hanaoka, Kazuto Ogawa: An Efficient Strong Key-Insulated Signature Scheme and Its Application. EuroPKI 2008: 150-165
13		Goichiro Hanaoka, Hideki Imai, Kazuto Ogawa, Hajime Watanabe: Chosen Ciphertext Secure Public Key Encryption with a Simple Structure. IWSEC 2008: 20-33
	2007
12		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: 80-89
11		Kazuto Ogawa, Go Ohtake, Goichiro Hanaoka, Hideki Imai: Trade-Off Traitor Tracing. INDOCRYPT 2007: 331-340
10		Arisa Fujii, Go Ohtake, Goichiro Hanaoka, Kazuto Ogawa: Anonymous Authentication Scheme for Subscription Services. KES (3) 2007: 975-983
9		Kazuto Ogawa, Goichiro Hanaoka, Kazukuni Kobara, Kanta Matsuura, Hideki Imai: Anonymous Pay-TV System with Secure Revenue Sharing. KES (3) 2007: 984-991
8		Toshiyuki Fujisawa, Kazuto Ogawa, Takeshi Kimura, Masaki Inamura, Toshiaki Tanaka: Anonymous Prepaid Content Viewing System with Mobile Terminal. SECRYPT 2007: 281-288
7		Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai: Traitor Tracing Scheme Secure against Adaptive Key Exposure and its Application to Anywhere TV Service. IEICE Transactions 90-A(5): 1000-1011 (2007)
6		Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai: Extension of Broadcasting Service by Using Electronic Tokens. IEICE Transactions 90-D(11): 1741-1750 (2007)
	2006
5		Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai: Adaptively Secure Traitor Tracing Against Key Exposure and Its Application to Anywhere TV Service. ACISP 2006: 123-135
4		Masaki Inamura, Toshiaki Tanaka, Toshiyuki Fujisawa, Kazuto Ogawa, Takeshi Kimura: Flexible License Transfer System Using Mobile Terminal. SECRYPT 2006: 397-404
	2005
3		Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai: A Secure Traitor Tracing Scheme against Key Exposure CoRR abs/cs/0508011: (2005)
	2004
2		Goichiro Hanaoka, Kazuto Ogawa, Itsuro Murota, Go Ohtake, Keigo Majima, Seiichi Gohshi, Kimiyuki Oyamada, Seiichi Namba, Hideki Imai: Managing Encryption and Key Publication Independently in Digital Rights Management Systems. IEICE Transactions 87-A(1): 160-172 (2004)
	2003
1		Goichiro Hanaoka, Kazuto Ogawa, Itsuro Murota, Go Ohtake, Keigo Majima, Kimiyuki Oyamada, Seiichi Gohshi, Seiichi Namba, Hideki Imai: Separating Encryption and Key Issuance in Digital Rights Management Systems. ACISP 2003: 365-376

Coauthor Index

1	Arisa Fujii	[10] [17]
2	Toshiyuki Fujisawa	[4] [8]
3	Satoshi Fujitsu	[12] [16]
4	Seiichi Gohshi	[1] [2]
5	Manabu Hagiwara	[12] [16]
6	Goichiro Hanaoka	[1] [2] [3] [5] [6] [7] [9] [10] [11] [13] [14] [15] [17]
7	Hideki Imai	[1] [2] [3] [5] [6] [7] [9] [11] [12] [13] [15] [16]
8	Masaki Inamura	[4] [8]
9	Takeshi Kimura	[4] [8]
10	Takashi Kitagawa	[12] [16]
11	Kazukuni Kobara	[9]
12	Keigo Majima	[1] [2]
13	Kanta Matsuura	[9]
14	Itsuro Murota	[1] [2]
15	Seiichi Namba	[1] [2]
16	Koji Nuida	[12] [16]
17	Go Ohtake	[1] [2] [10] [11] [14] [15] [17]
18	Kimiyuki Oyamada	[1] [2]
19	Toshiaki Tanaka	[4] [8]
20	Hajime Watanabe	[12] [13] [16]

Colors in the list of coauthors