Sony Corporation

Kazuya Kamio

Koichi Sakumoto

Taizo Shirai

Harunaga Hiwatari

Yu Tanaka

Masanobu Katagi

Yohei Kawamoto

There is provided an information processing device including a query generation unit configured to generate, on the basis of a table in a database and any query with regard to the table, one or more different queries, and a table search unit configured to search for the number of tables that are different from the table and in which a result of the different query generated by the query generation unit is not in conflict with a result of the any query.

Information processing device and information processing method

Provided an information processing apparatus including a number generation unit configured to generate numbers used in coefficients of terms included in a pair of multi-order multivariate polynomials F=(f1, . . . , fm), using a predetermined function, from information shared between entities executing an algorithm of a public-key authentication scheme or a digital signature scheme that uses a public key including the pair of multi-order multivariate polynomials F, and an allocation unit configured to allocate the numbers generated by the number generation unit to the coefficients of the multi-order multivariate polynomials for which the pair of multi-order multivariate polynomials F are included in constituent elements.

Information processing apparatus and to efficiently substitute coefficients of a multivariate polynomial

There is provided an information processing apparatus including a key selection section configured to select one out of a plurality of different secret keys, in a public key authentication scheme or a digital signature scheme in which each of the plurality of secret keys exists for one public key registered in a verifier, and a process execution section configured to execute, by using the secret key selected by the key selection section, an authentication process with the verifier by the public key authentication scheme or a digital signature generation process to the verifier by the digital signature scheme.

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Tokyo, Japan

Kazuya Kamio