Abstract: A transaction processing system for retail stores includes a content management apparatus storing content files and a transaction processing apparatus. The transaction processing apparatus is configured to register a commodity in a transaction based on registration input received from a user terminal device and select a content file to be displayed on the user terminal from the content files stored on the content management apparatus. The content file is selected based on a user attribute associated with a user of the user terminal device or a commodity registered in the transaction. When a length of time since a registration input was last received without another registration input or user instruction being received exceeds a timeout period, the transaction processing apparatus causes the user terminal device to display information corresponding to the selected content file.

Abstract: According to an embodiment, an information processing apparatus acquires, from a payment apparatus, transaction data, user identification data, and planning identification data. The information processing apparatus acquires, from a first management database, a product code associated with the planning identification data. The information processing apparatus acquires, from a second management database, an achievement status of a reward providing condition. The information processing apparatus determines, on the basis of whether or not the transaction data includes the product code and of the achievement status of the reward providing condition, necessity of provision of a reward to a subject corresponding to the user identification data.

Abstract: A coupon management device includes a network interface configured to communicate with a payment terminal installed at a store, and a processor configured to upon receipt of transaction data of a transaction settled by the payment terminal and identification information associated with the store, select one or more coupons based on the transaction data, based on the identification information, determine a number of coupons to be issued from the payment terminal, generate print data of the determined number of coupons among the selected coupons, and control the network interface to transmit the generated print data to the payment terminal.

Abstract: According to one embodiment, a sales management device includes an acquisition unit, a generation unit, and an output unit. The acquisition unit acquires result data representing a past sales result for each item about the commodity being handled for sale. The generation unit generates candidate data representing candidates for which handling is to be terminated based on the result data acquired by the acquisition unit in an identifiable manner. The output unit outputs the candidate data generated by the generation unit.

Abstract: In a data structure of a multimedia file format, a movie box and a media data box are provided. In each box, a non-encrypted size field, a non-encrypted type field and box data field are provided. In box data of the movie box, information data regarding multimedia data is stored. The multimedia data is encrypted and stored in box data of the media data box. The information data is obtained by referring to the container in the movie box. This information data is held as encryption and encoding information data. By referring to the information data, a data unit of the encrypted multimedia data in the media data box is obtained, and the unit data is decrypted.

Abstract: A terminal device determines whether a clock is a secure clock or a self-running clock. If the clock is the self-running clock, the device stores a clocking time of the clock as a timestamp file in a memory card in recording content. In playing back the content, the device determines validity of a clocking time using the timestamp file to play back the content and also updates the stored time of the stored time as the timestamp file to a content playback start time. In contrast, if the clock is the secure clock, the device stores the timestamp file indicating a recording time of the content in the memory card only in recording the content and omits updating the stored time as the timestamp file in playing back the content.

Abstract: In a data structure of a multimedia file format, a movie box and a media data box are provided. In each box, a non-encrypted size field, a non-encrypted type field and box data field are provided. In box data of the movie box, information data regarding multimedia data is stored. The multimedia data is encrypted and stored in box data of the media data box. The information data is obtained by referring to the container in the movie box. This information data is held as encryption and encoding information data. By referring to the information data, a data unit of the encrypted multimedia data in the media data box is obtained, and the unit data is decrypted.

Abstract: In a data structure of a multimedia file format, a movie box and a media data box are provided. In each box, a non-encrypted size field, a non-encrypted type field and box data field are provided. In box data of the movie box, information data regarding multimedia data is stored. The multimedia data is encrypted and stored in box data of the media data box. The information data is obtained by referring to the container in the movie box. This information data is held as encryption and encoding information data. By referring to the information data, a data unit of the encrypted multimedia data in the media data box is obtained, and the unit data is decrypted.

Abstract: In a data structure of a multimedia file format, a movie box and a media data box are provided. In each box, a non-encrypted size field, a non-encrypted type field and box data field are provided. In box data of the movie box, information data regarding multimedia data is stored. The multimedia data is encrypted and stored in box data of the media data box. The information data is obtained by referring to the container in the movie box. This information data is held as encryption and encoding information data. By referring to the information data, a data unit of the encrypted multimedia data in the media data box is obtained, and the unit data is decrypted.

Abstract: A terminal device determines whether a clock is a secure clock or a self-running clock. If the clock is the self-running clock, the device stores a clocking time of the clock as a timestamp file in a memory card in recording content. In playing back the content, the device determines validity of a clocking time using the timestamp file to play back the content and also updates the stored time of the stored time as the timestamp file to a content playback start time. In contrast, if the clock is the secure clock, the device stores the timestamp file indicating a recording time of the content in the memory card only in recording the content and omits updating the stored time as the timestamp file in playing back the content.

Abstract: In a data structure of a multimedia file format, a movie box and a media data box are provided. In each box, a non-encrypted size field, a non-encrypted type field and box data field are provided. In box data of the movie box, information data regarding multimedia data is stored. The multimedia data is encrypted and stored in box data of the media data box. The information data is obtained by referring to the container in the movie box. This information data is held as encryption and encoding information data. By referring to the information data, a data unit of the encrypted multimedia data in the media data box is obtained, and the unit data is decrypted.

Abstract: A terminal device determines whether a clock is a secure clock or a self-running clock. If the clock is the self-running clock, the device stores a clocking time of the clock as a timestamp file in a memory card in recording content. In playing back the content, the device determines validity of a clocking time using the timestamp file to play back the content and also updates the stored time of the stored time as the timestamp file to a content playback start time. In contrast, if the clock is the secure clock, the device stores the timestamp file indicating a recording time of the content in the memory card only in recording the content and omits updating the stored time as the timestamp file in playing back the content.

Abstract: When content owned by a source device are played back in a rendering device, a content key is transferred from the source device to the rendering device via a secure session every time playback is carried out. Then, encoded content are decoded and played back to be outputted by using the transferred content key so as to discard the content key after the end of playback.

Abstract: A mobile communication terminal moves and backs up a content, which was downloaded from a content server, to a personal computer. When the mobile communication terminal receives an encryption key generation request from the personal computer via a cable, the mobile communication terminal extracts information to be used for generating the encryption key and generates the encryption key by using the extracted information and own telephone number. And the generated encryption key is transmitted to the personal computer via the cable. Accordingly, the backed up and moved content can be reproduced with the personal computer.

Abstract: According to an aspect of the invention, there is provided a content sharing system including a first device configured to acquire a right object; a second device configured to acquire a content of the right object from the first device; a session key generation unit provided in the first device and the second device and configured to generate a session key based on mutual authentication; a temporary right object generation unit provided in the first device and configured to generate a temporary right object from the right object by using the session key to supply the generated temporary right to the second device; and a content play unit provided in the second device and configured to receive the temporary right object to play the content of the right object acquired from the first device by using the temporary right object.

Abstract: According to an aspect of the invention, there is provided a content sharing system including: a first device configured to acquire a right object; a second device configured to acquire a content of the right object from the first device; a session key generation unit provided in the first device and the second device and configured to generate a session key based on mutual authentication; a temporary right object generation unit provided in the first device and configured to generate a temporary right object from the right object by using the session key to supply the generated temporary right to the second device; and a content play unit provided in the second device and configured to receive the temporary right object to play the content of the right object acquired from the first device by using the temporary right object.

Abstract: An information terminal according to this invention includes a storage means having a first storage area which is accessible from an external terminal, and a second storage area which is inaccessible from the external terminal. Content which includes a content body and rights information indicating a use condition given to the content body is acquired. The acquired content is encrypted and the encrypted content is stored in the first storage area. In addition, state management information used to manage the variable state of the use condition given to the content body is generated on the basis of the rights information included in the acquired content, and the generated state management information is stored in the second storage area.

Abstract: A download control program of a client terminal transmits a request to a download server, which stores Download Descriptors that include attribution information of contents, for a Download Descriptor, and receives the Download Descriptor from the download server. The download server, before transmitting the Download Descriptor to the client terminal, adds information indicating that there is a difference between a Download Descriptor contained in the request from the client terminal and the Download Descriptor stored in data memory of the download server if the download server detects the difference between them. The client terminal transmits a content download request to a contents server based on the received Download Descriptor.

Abstract: According to an aspect of this invention, in moving copyrighted content acquired from a rights server from a first terminal to a second terminal, the first terminal of the moving source re-encrypts a key encryption key contained in the rights object of the copyrighted content as the moving target by using the terminal public key of the second terminal and regenerates at least one of the signature of existing rights information and the signature of added rights consumption information on the basis of the terminal private key.

Abstract: According to an aspect of the invention, there is provided a content sharing system including: a first device configured to acquire a right object; a second device configured to acquire a content of the right object from the first device; a session key generation unit provided in the first device and the second device and configured to generate a session key based on mutual authentication; a temporary right object generation unit provided in the first device and configured to generate a temporary right object from the right object by using the session key to supply the generated temporary right to the second device; and a content play unit provided in the second device and configured to receive the temporary right object to play the content of the right object acquired from the first device by using the temporary right object.