Kabushiki Kaisha Toshiba

Isao Takeyasu

Eiji Tokita

Keiichi Teramoto

Satoshi Ozaki

Yoshiki Terashima

Shirou Wakayama

Kenji Odaka

Go Fujino

Yoshiyuki Tsuzuki

Masato Shimano

Masaaki Miki

According to one embodiment, an apparatus includes a permission/inhibition information storage which stores a permission/inhibition information file, a changer which changes a first encryption key of a first private key encrypted with the first public key to the second public key by using the first re-encryption key, a first storage which stores a second private key in a device private key temporary storage, a second storage which stores a second re-encryption key in a re-encryption key storage, a permission/inhibition information registration module which registers second permission/inhibition information in the permission/inhibition information file, and a transmitter which transmits the second private key in the re-encryption key storage to the second terminal.

Key change management apparatus and key change management method

An imaging distribution apparatus includes a reception unit configured to receive a distribution request for distribution of a specific program from a client apparatus via a network, a program scenario acquisition unit configured to acquire a program scenario corresponding to the specific program requested for by the distribution request, a content acquisition unit configured to acquire a plurality of information contents based on the program scenario, a conversion unit configured to convert the information contents to image scene based on the program scenario, an encoding unit configured to encode the image scene, to generate a stream, and a stream distribution unit configured to distribute the stream to the client apparatus via the network.

Imaging distribution apparatus and imaging distribution method

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Yokohama, Japan

Isao Takeyasu