K. Okada

Analysis on Secret Sharing Schemes with Non-Graphical Access Structures (Special Section on Cryptography and Information Security)

Kaoru Kurosawa, Wakaha Ogata, Koji Okada, 1997 .

Combinatorial Interpretation of Secret Sharing Schemes

Kaoru Kurosawa, Koji Okada, K. Kurosawa, 1994, ASIACRYPT.

Low Exponent Attack Against Elliptic Curve RSA

Kaoru Kurosawa, Shigeo Tsujii, Koji Okada, 1994, Inf. Process. Lett..

Security of the Center in Key Distribution Schemes

Kaoru Kurosawa, Koji Okada, Keiichi Sakano, 1994, ASIACRYPT.

Lower Bound on the Size of Shares of Nonperfect Secret Sharing Schemes

Kaoru Kurosawa, Koji Okada, K. Kurosawa, 1994, ASIACRYPT.

Nonperfect Secret Sharing Schemes and Matroids

Kaoru Kurosawa, Shigeo Tsujii, Wakaha Ogata, 1994, EUROCRYPT.

Proposal of a Method Extracting Strategic Phrases from Japanese Enterprise Disclosure Documents

K. Okada, Shu Kawanami, Ken Hidema, 2020, 2020 9th International Congress on Advanced Applied Informatics (IIAI-AAI).

Unforgeability of Re-Encryption Keys against Collusion Attack in Proxy Re-Encryption

Koji Okada, Ryotaro Hayashi, Tatsuyuki Matsushita, 2011, IWSEC.