摘要:
An information processing apparatus is disclosed which handles content items categorized in a predetermined number of groups. The apparatus includes group number attaching means for attaching to the groups a series of group numbers made up of natural numbers starting from 1; and depth information attaching means for attaching depth information 1 to the group having the group number 1. If a given group with a group number N which is a natural number has depth information “a” which is also a natural number, then the depth information attaching means attaches the depth information formed by a natural number which is at least 1 and not more than a+1 to the group having the group number N+1.
摘要:
Disclosed herein is a return component for returning a license describing a usage rule of the content between storage components that store the license in storages, the return component including a receiving section for receiving a rent license rented from the first storage component having the first storage, the rent license being stored in the second storage component having the second storage, an analyzing section for evaluating the rent license to allow or prohibit return of the rent license, a retrieving section for retrieving a rent source license corresponding to the rent license, stored in the first storage, from the first storage component if return of the rent license is allowed, a license updating section for updating a rent status defining a status of renting the rent source license, described in the rent source license, and a transferring section for transferring the rent source license with the rent status updated to the first storage component.
摘要:
An information processing device including: a data processing unit that generates an encryption key of content; and a communication unit that transmits an encryption key generated by the data processing unit, wherein the data processing unit generates, as the encryption key, individual keys that are different for each new content recording processing on a recording medium in a content recording device, and transmits the individual keys through the communication unit.
摘要:
An information processing device including: a data processing unit that generates content for transmitting to a client; and a communication unit that transmits the generated content of the data processing unit, wherein the data processing unit generates, based on basic encrypted content having a plurality of units that each includes a SEED that is data for encryption key generation and a block that is encrypted data that is encrypted by an encryption key generated using the SEED, each data of (a) converted encrypted content on which conversion processing to replace the SEED with dummy data or to delete the SEED is performed, and (b) encrypted SEED that is the SEED encrypted by content transmission processing or by individual keys that are different by units of users at a transmission destination, and transmits the generated converted encrypted content and encrypted SEED as data provided to the client via the communication unit.
摘要:
Disclosed herein is, a license source component for transferring a license defining a content usage rule to a license destination component, the license source component and the license destination component each being a unit of license processing, including, creating means for creating a message including a license, a manipulation type defining a type of processing the license between the license source component and the license destination component, and a component attribute defining an attribute of the license source component of its own, and transferring means for transferring the message to the license destination component.
摘要:
An information processing device including: a data processing unit that generates an encryption key of content; and a communication unit that transmits an encryption key generated by the data processing unit, wherein the data processing unit generates, as the encryption key, individual keys that are different for each new content recording processing on a recording medium in a content recording device, and transmits the individual keys through the communication unit.
摘要:
An information processing device for downloading content from a content distribution server via a network includes a mounting unit configured such that a storage media is detachably mounted thereto, a downloading unit arranged to receive content to be downloaded from the content distribution server, and to record the received content on the storage media, an interruption processing unit arranged to record resuming information necessary for resuming an interrupted content download on the storage media in the event that the reception for the content from the content distribution server by the downloading unit is interrupted, and a resuming processing unit arranged to read the resuming information from the storage media in the event of resuming the reception of the interrupted content, and to transmit a transmission request for the interrupted content to the content distribution server, based on the read resuming information.
摘要:
There is provided the present invention to prevent illegal copying of recorded information and enable flexible management of contents, and further facilitate improvement of copy protection technology and the like. A key obtaining module (2) is recorded on a read-only information recording medium (1) to which a copy protection technology is applied. A reproducing module (3) safely obtains a media key unique to the key obtaining module (2) from the key obtaining module (2), generates a content key from the media key, and decrypts an encrypted content (4) using the content key and reproduces the content. In this case, while the key obtaining module (2) needs to be present on the information recording medium (1), the reproducing module (3) and the encrypted content (4) do not need to be present on the information recording medium (1) and may be present outside the information recording medium (1).
摘要:
Disclosed herein is a move component for moving a license describing a usage rule of the content between a plurality of storage components each storing the license in a storage, the move component including: a receiving section for receiving the license from the first storage component that stores license in a first storage; an analyzing section for evaluating the license to allow or prohibit move of the license; and a transferring section for transferring the license to the second storage component that stores the license in a second storage if move of the content is allowable.
摘要:
An information processing device includes: a memory having a protected area which is a data recording area in which access restriction is set; and a data processing unit that determines accessibility in response to a request for accessing the protected area from an access requesting device, wherein the data processing unit verifies a device certificate received from the access requesting device and determines accessibility to the protected area based on access control information recorded in the device certificate.