Information processing apparatus, server apparatus, and computer program product
AssigneeKabushiki Kaisha Toshiba
InventorsToru KAMBAYASHI, Yoshikazu HANATANI, Atsushi INOUE
Life of this patent
Estimating the term…
Abstract
In an embodiment, an information processing apparatus is connected to external apparatuses. The information processing apparatus includes: a device key storage unit configured to store a device key; a shared key storage unit configured to store one or more shared keys shared by the external apparatuses; a key generating unit configured to generate a media key from the device key and media key blocks; and an updating unit configured to generate the shared keys as generated shared keys, which is updated, based upon the media key and the shared keys stored in the shared key storage unit, and to store the generated shared keys into the shared key storage unit.
Claims1
An information processing apparatus connected to external apparatuses, comprising:
- a device key storage to store a device key;
- a shared key storage to store one or more shared keys shared by the external apparatuses;
- a key generating unit configured to generate media keys from the device key and media key blocks;
- and
- an updating unit configured
- to generate the shared keys as generated shared keys, which is updated, based upon the media keys and the shared keys stored in the shared key storage unit, and
- to store the generated shared keys into the shared key storage unit.
Dependencies are inferred from the claim text.