Koji Okada - researchr alias

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Viewing Publication 1 - 17 from 17

2020

Proposal of a Method Extracting Strategic Phrases from Japanese Enterprise Disclosure DocumentsShu Kawanami, Ken Hidema, Koji Okada. iiaiaai 2020: 506-511 [doi]

2018

Proposal of a Method to Understand and Model Dynamic Mechanisms Existing in Business ContextKoji Okada, Hayato Nishizono, Kosuke Tsubouchi, Tatsuya Hirukawa. iiaiaai 2018: 781-786 [doi]

2017

Estimation of Risk Countermeasure Effects Based Upon Project-Behavior Simulation SystemAyaka Oshima, Koji Okada. iiaiaai 2017: 307-312 [doi]

2011

Unforgeability of Re-Encryption Keys against Collusion Attack in Proxy Re-EncryptionRyotaro Hayashi, Tatsuyuki Matsushita, Takuya Yoshida, Yoshihiro Fujii, Koji Okada. IWSEC 2011: 210-229 [doi]

2008

Simple and Efficient Group Signature Scheme Assuming Tamperproof DevicesTakuya Yoshida, Koji Okada. IWSEC 2008: 83-99 [doi]

2002

On the bound for anonymous secret sharing schemesWataru Kishimoto, Koji Okada, Kaoru Kurosawa, Wakaha Ogata. DAM, 121(1-3):193-202, 2002.

2000

MDS secret-sharing scheme secure against cheatersKoji Okada, Kaoru Kurosawa. TIT, 46(3):1078-1081, 2000.

1998

New Combinatorial Bounds for Authentication Codes and Key Predistribution SchemesKaoru Kurosawa, Koji Okada, Hajime Saido, Douglas R. Stinson. dcc, 15(1):87-100, 1998.

1996

Combinatorial Lower Bounds for Secret Sharing SchemesKaoru Kurosawa, Koji Okada. ipl, 60(6):301-304, 1996. [doi]

1995

Low Exponent Attack Against Elliptic Curve RSAKaoru Kurosawa, Koji Okada, Shigeo Tsujii. ipl, 53(2):77-83, 1995. [doi]

1994

Low Exponent Attack against Elliptic Curve RSAKaoru Kurosawa, Koji Okada, Shigeo Tsujii. asiacrypt 1995: 376-383

Security of the Center in Key Distribution SchemesKaoru Kurosawa, Koji Okada, Keiichi Sakano. asiacrypt 1995: 333-341

Combinatorial Interpretation of Secret Sharing SchemesKaoru Kurosawa, Koji Okada. asiacrypt 1995: 55-64

Lower Bound on the Size of Shares of Nonperfect Secret Sharing SchemesKoji Okada, Kaoru Kurosawa. asiacrypt 1995: 33-41

1993

Nonperfect Secret Sharing Schemes and MatroidsKaoru Kurosawa, Koji Okada, Keiichi Sakano, Wakaha Ogata, Shigeo Tsujii. eurocrypt 1993: 126-141 [doi]

1982

A Hierarchical Structuring Method for Functional Software SystemsKokichi Futatsugi, Koji Okada. ICSE 1982: 393-402

1980

Specification Writing as Construction of Hierarchically Structured Clusters of OperatorsKokichi Futatsugi, Koji Okada. ifip 1980: 287-292

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