Ogata Wakaha | Faculty Of Engineering Tokyo Institute Of Technology

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概要

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著作論文

Analysis on Secret Sharing Schemes with Non-Graphical Access Structures (Special Section on Cryptography and Information Security)
Electronic Ticket Scheme for ITS(Special Section on Cryptography and Information Security)
Comments on the Security Proofs of Some Signature Schemes Based on Factorization(Information Security)
New Identity-Based Blind Signature and Blind Decryption Scheme in the Standard Model
Collision-Based Power Attack for RSA with Small Public Exponent
Forgery Attacks on Time-Stamp, Signed PDF and X.509 Certificate
General Conversion for Obtaining Strongly Existentially Unforgeable Signatures
On Some Variations of Kurosawa-Desmedt Public-Key Encryption Scheme(Cryptography and Information Security)
Efficient Divisible Voting Scheme(Application)(Cryptography and Information Security)
Some new results on nonperfect secret sharing schemes
Efficient Almost Secure 1-Round Message Transmission Schemes for 3t+1 Channels
k out of n Oblivious Transfer without Random Oracles (Protocol) (Cryptography and Information Security)
Relationship between Standard Model Plaintext Awareness and Message Hiding
Provably Secure On-Line Secret Sharing Scheme
On Claw Free Families (Special Section on Cryptography and Information Security)
Matching Oblivious Transfer : How to Exchange Valuable Data(Special Section on Cryptography and Information Security)
k out of n Oblivious Transfer without Random Oracles
On the Practical Secret Sharing Scheme : Special Section on Cryptography and Information Security
Reshufflable and Laziness Tolerant Mental Card Game Protocol (Special Section on Cryptography and Information Security)
A Simple and Efficient Secret Sharing Scheme Secure against Cheating

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