Abstract: A content use system is provided which permits the use of content under appropriate use conditions while maintaining a high security level. A host (100) includes a secure data management unit (105) which securely manages secure data, a host communication processing unit (101) which transmits secure data managed by the secure data management unit (105) to a card (200), and a playback unit (104) which uses the content in the case where use of the content is assessed to be permitted by the card (200); the card (200) includes a license management unit (203) which holds use conditions for the content, a card communication processing unit (201) which acquires the secure data from the host (100), and a usability assessment unit (204) which assesses whether or not use of the content is permitted by the host (100) based on the secure data acquired by the card communication processing unit (201) and the use conditions held in the license management unit (203).

Abstract: An image processing apparatus enables image data to be handled easily after photography. A server apparatus pattern images and control information in correspondence with user identifiers. A digital camera photographs a subject, obtains a pattern image and a piece of control information from the server apparatus, and judges whether a portion of the image data obtained by photography matches the obtained pattern image. If a matching portion exists, the digital camera operations in accordance with an operation instruction included in the piece of control information. If the operation instruction is mosaic processing, the digital camera performs mosaic processing to the matching portion. If the operation instruction is image replacement, the digital camera replaces the matching portion with a predetermined image or performs CG processing on the matching portion. If the operation instruction is frame deletion, the digital camera deletes the image data.

Abstract: A personal information management device aims to save troubles of inputting passwords and deleting personal information, to prevent others from viewing the personal information, and to maintain confidentiality of the personal information even when a mobile device is lost. Personal information storage unit 201 holds encrypted personal information, key distribution unit 204 distributes a decryption key used for decrypting the encrypted personal information into a first and a second distributed keys based on a secret sharing scheme, distributed key storage unit 205 stores thereon the first distributed key, stores the second distributed key on home device 30, and deletes the decryption key. Upon decryption, link judgment unit 210 judges link establishment. Key recovery unit 207 acquires the second distributed key from home device 30, and recovers the decryption key using the first and the second distributed keys. Decryption unit 208 decrypts the encrypted personal information using the decryption key.

Abstract: An authentication system that permits the user to use a function by authenticating the user in a more reliable manner than conventional technologies. The authentication system 1 includes a user terminal 10, an authentication recording medium 20, and wireless ID tags 31, 32, 33, 34, 35, . . . 36. Upon receiving from a user an instruction to activate a function provided by the authentication system for which the access by the user is limited, the user terminal 10 collects ID codes from the wireless ID tags 31, 32, 33, 34, 35, . . . 36, and judge whether or not a level of match between the collected ID codes and the ID codes stored beforehand in the authentication recording medium 20 satisfies a predetermined condition. If the level of match satisfies the predetermined condition, the user terminal 10 activates the designated function.

Abstract: IC card (300) supplies an encryption key which enables content use, to a terminal apparatus (200) belonging to a domain made up of terminal apparatuses (200) which share the IC card (300). The IC card (300) includes: an extra-domain usage rule holding unit (305) which stores a rule for use of the IC card (300) in a terminal apparatus (200) which is outside of the domain; and an extra-domain use permission judgment unit (309) which judges, according to the usage rule, whether or not use of the IC card (300) is permitted, when the IC card (300) is provided to the terminal apparatus (200). The IC card (300), in addition, supplies the encryption key to the terminal apparatus (200) which is outside of the domain, when the extra-domain use permission judgment unit (309) judges that use is permitted.

Abstract: A broadcast station that is a transmission device assigns an ID and a license transformation period to a license to be generated, and transmits to a terminal apparatus 102, in order to provide a digital right management system which can provide a protection for the rights of a provider while preventing an unauthorized obtainment of a license to be transmitted through a digital broadcast. The terminal apparatus 102 records a license import log including the license ID and license transformation period assigned to the license. Further, the terminal apparatus 102 controls a license obtainment in the case where the same license has been obtained by the time of obtaining the license. Furthermore, the license received by the terminal apparatus 102 is kept at least until the license transformation period expires.

Abstract: A content using system is composed of a content importing apparatus and at least one content using apparatus. The content importing apparatus includes a content ID generating unit that generates a content ID, and a content key information encryption converting unit that converts the encryption of content key information by using an encryption key (“network key”) that is shared in advance on the network. The content using apparatus includes a content key information decrypting unit that decrypts the content key information, whose encryption has been converted, by using the network key, a moved content list storing unit for storing a moved content list (MCL) in which the content IDs of contents that have been written onto a storage medium are written, and a moved content list managing unit that judges whether the writing of a content is permitted or prohibited based on the MCL.

Abstract: A content reproduction control system comprising a server apparatus and a terminal apparatus that are connected via a communication path, wherein the server apparatus includes: based on time information attached to a content, a control information generation unit operable to generate control information for specifying a range for permitting or prohibiting a user's predetermined operation in the terminal apparatus; and a distribution unit that distributes the control information to the terminal apparatus, the terminal apparatus includes: a content use unit operable to use the content; a receiving unit operable to receive the control information; and a content use control unit operable to control reproduction of the content based on the received control information.

Abstract: An application management device 54 that is capable of judging the necessity of application deletion with little load includes: a DRM application DB 520 that stores plural applications in association with their respective identification information (DRM application IDs) for identifying a correspondence between a license and an application for processing such license; and a DRM application deletion judgment unit 527 that judges, for each of the applications stored in the DRM application DB 520, whether deletion of an application is necessary or not, based on the identification information. More specifically, the application management device 54 further includes a license DB 521 for storing each license in association with the identification information, and the DRM application deletion judgment unit 527 judges that an application whose license associated with the identification information is not stored in the license DB 521, is an application to be deleted.

Abstract: An object of the present invention is to provide a unit-to-unit data exchange system in which an unfair exchange is prevented without increasing the communications cost or the load on the server. A unit (11a) exchanges data with a unit (11b). An exchange completion data keeping device (21) keeps exchange completion data that is necessary for each unit to reproduce the obtained data after the data exchange is completed. The exchange completion data keeping device transmits the exchange completion data obtained from the unit (11b) to the unit (11a) and transmits the exchange completion data obtained from the unit (11a) to the unit (11b) only when both of the unit (11a) and the unit (11b) have successfully received data of interest.

Abstract: A content using apparatus (103) for providing content use to a user under a license that grants the content use includes: a content using unit (202) for providing the content use to the user; a content use control unit (212) for controlling the content use on the content using unit (202) under the license; a value information storage unit (213) for obtaining and storing a value information tag block (504) indicating a discount amount (605) indicating a benefit for the user, a value information giving condition (603) for allowing the user to use the discount by the discount amount (605) depending on the content use and a discount ticket applicable condition (604); and a value information using unit (214) for judging whether the value information giving condition (603) and the discount ticket applicable condition (604) are satisfied or not and allowing the user to use the discount amount (605) if the conditions are satisfied.

Abstract: A content history log collecting system comprising a server apparatus for distributing a content to a terminal apparatus and collecting a content history log from the terminal apparatus and a terminal apparatus for using the content, wherein the server apparatus includes an adding unit operable to add, to the content, time information indicating a temporal scale of the content, and a content sending unit operable to send, to the terminal apparatus, the content to which the time information is added, and the terminal apparatus includes a content using unit operable to use the content sent from the server apparatus, a generating unit operable to generate section information indicating a section in the content that has been actually used by the content using unit based on the time information of the content, and a sending unit operable to send the section information to the server apparatus.

Abstract: The system of the present invention is a system comprising a server device which provides a license and a terminal device which controls content use based on the license provided from the server device, wherein the server device includes the first collecting unit operable to collect the first history logs concerning the content use sent from the terminal device, the second collecting unit operable to collect the second history logs concerning the content use sent from the terminal device separately from the collection by the first collection unit and the verifying unit operable to verify the first history logs collected by the first collection unit and the second history logs collected by the second collection unit, and the terminal device includes the first acquirement unit operable to acquire the first history logs concerning the content use and the second acquirement unit operable to acquire the second history logs concerning the content use and a history log sending unit operable to separately send the fi

Abstract: The present invention is a system comprising a server device for providing a license and a terminal device for controlling the content use based on the license to be provided by the server, wherein the server device includes a database unit operable to store collection conditions concerning history logs to be collected in the terminal device, a generation unit operable to dynamically generate indication information that indicates history log collection to the terminal device according to the collection condition to be stored in the database unit, the first sending unit operable to send the generated indication information to the terminal device and the first receiving unit operable to receive the history logs to be sent from the terminal device as a response to the indication information, and the terminal device includes the second receiving unit operable to receive the indication information from the server device, a collection unit operable to collect content history logs according to the received indicatio

Abstract: A usage right which a user purchases is managed by a right management server (20a). License information which is a part of the usage right is sent from a user terminal (30a) to the right management server (20a). The user terminal (30a) controls usage of content based on this license information.

Abstract: The present content using system is composed of a content importing apparatus and at least one content using apparatus. The content importing apparatus includes a content ID generating unit that generates a content ID and a content key information encryption converting unit that converts the encryption of content key information using an encryption key (“network key”) that is shared in advance on the network. The content using apparatus includes a content key information decrypting unit that decrypts the content key information, whose encryption has been converted, using the network key, a moved content list storing unit for storing a moved content list (MCL) in which the content IDs of contents that have been written onto a storage medium are written, and a moved content list managing unit that judges whether the writing of a content is permitted or prohibited based on the MCL.

Abstract: A management device 10 of a license management system 1 acquires a usage request of a content from an SD card 40 or a printer 50 via a relay device 30, analyzes the acquired usage request, acquires usage environment information of the SD card 40 or the printer 50 from the relay device 30, analyzes the acquired usage environment information, generates license information including a usage rule corresponding to the analysis results of the usage request and the usage environment information, generates instruction information indicating how to handle the license information in the relay device based on the analysis result of the usage environment information, embeds the generated instruction information in the license information, and sends the license information to the relay device 30.

Abstract: Each of at least two terminal apparatuses uses content data in accordance with license information which is generated by a content distribution system to which it subscribes. A conversion apparatus includes a working area for storing license information which is compatible with one of the terminal apparatuses, and a central processing section for converting the license information stored in the working area into license information which is compatible with the other terminal apparatus. Thus, there is provided a conversion apparatus which can convert one's own license information so as to be passable to others.

Abstract: A content usage device 1 includes (i) a license management unit 1a that holds license information and (ii) a content output unit 1b that uses a content in compliance with license information and outputs the content in at least one manner of a sound, video and data. The license management unit 1a, upon receiving a request of license information from the content output unit 1b, requests a license management unit of another content usage device to transfer the license information and acquires the license information, and passes the acquired license information to the content output unit 1b. The content output unit 1b uses a content in compliance with the license information passed from the license management unit 1a.

Abstract: A content distribution management system in which (a) a plurality of content distributing devices A 11 including a content storage processing unit 115 operable to store and distribute a content, a user interface unit 111 operable to provide viewing and information of a content for a user, a content acquisition processing unit 113 operable to acquire a content from a content providing device 1, etc. and perform purchase processing of the content, and a sending/receiving unit 117 operable to exchange data via a communication network 19, etc., and (b) a content distribution management device 17 including a payment management processing unit 175 operable to perform payment processing of a content, and a copyright management processing unit 173 operable to manage and send copyright-related information (a usage rule, key information, etc.) are configured via the communication network 19, etc.