2008 |
13 | EE | Go Ohtake,
Goichiro Hanaoka,
Kazuto Ogawa:
An Efficient Strong Key-Insulated Signature Scheme and Its Application.
EuroPKI 2008: 150-165 |
12 | EE | Goichiro Hanaoka,
Hideki Imai,
Kazuto Ogawa,
Hajime Watanabe:
Chosen Ciphertext Secure Public Key Encryption with a Simple Structure.
IWSEC 2008: 20-33 |
2007 |
11 | EE | 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 |
10 | EE | Kazuto Ogawa,
Go Ohtake,
Goichiro Hanaoka,
Hideki Imai:
Trade-Off Traitor Tracing.
INDOCRYPT 2007: 331-340 |
9 | EE | Arisa Fujii,
Go Ohtake,
Goichiro Hanaoka,
Kazuto Ogawa:
Anonymous Authentication Scheme for Subscription Services.
KES (3) 2007: 975-983 |
8 | EE | Kazuto Ogawa,
Goichiro Hanaoka,
Kazukuni Kobara,
Kanta Matsuura,
Hideki Imai:
Anonymous Pay-TV System with Secure Revenue Sharing.
KES (3) 2007: 984-991 |
7 | EE | 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 | EE | Kazuto Ogawa,
Goichiro Hanaoka,
Hideki Imai:
Extension of Broadcasting Service by Using Electronic Tokens.
IEICE Transactions 90-D(11): 1741-1750 (2007) |
2006 |
5 | EE | 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 | EE | Kazuto Ogawa,
Goichiro Hanaoka,
Hideki Imai:
A Secure Traitor Tracing Scheme against Key Exposure
CoRR abs/cs/0508011: (2005) |
2004 |
2 | EE | 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 | EE | 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 |