Abstract: A marketing support apparatus includes: a registration unit that registers, in a first database, concealed data obtained by concealing customer information acquired from a customer information management apparatus, an acquisition unit that acquires, from a predetermined business operator, a calculation logic for calculating an evaluation value indicating a degree of a potential customer based on the customer information, a calculation unit that calculates the evaluation value from the concealed data using the calculation logic, and an output unit that outputs output information based on the evaluation value.

Abstract: A secure computation system according to an aspect of the present disclosure includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: acquire financial transaction information possessed by each of a plurality of financial institutions in a concealed format; compute an index based on the financial transaction information of the plurality of financial institutions by secure computation; and output the index.

Abstract: A secure computing system according to the present disclosure is used to analyze financial transactions based on information regarding customer assets, and comprises: a parameter reception means that receives input of encrypted parameters of a plurality of models generated by each of a plurality of financial institutions; a secure computing means that integrates the plurality of encrypted parameters through secure computation; and an output means that outputs, in an encrypted format, the parameters integrated by the secure computing means.

Abstract: A model generation device according to the present disclosure comprises: an information receiving means that receives input of financial transaction information including customer information which has been anonymized in each of a plurality of financial institution servers; a model generation device that generates a model for analyzing financial transactions using the financial transaction information received from the plurality of financial institution servers; and an outputting means that outputs the model generated by the model generation means.

Abstract: This secure computing system comprises: a parameter acceptance means for accepting, with regard to a plurality of models used for analysis of the optimization of a city based on the personal data of individuals belonging to the city and having been generated by each of a plurality of business operators, input of a plurality of concealed parameters of the plurality of models; a secure computing means for integrating by secure computation, with regard to the plurality of concealed parameters; and an output means for outputting the parameters in a concealed form that have been integrated by the secure computing means.

Abstract: A voting system and a voting method by which electronic voting can be securely conducted are provided. A voting system includes: a secret sharing unit that generates a plurality of shares from voting information by secret sharing; a plurality of share storage units that store the plurality of shares in a distributed manner; a first blockchain processing unit that transmits, to a node managing a blockchain, transaction data of voting conducted using the voting information in order to record the transaction data in the blockchain; and a secure computation unit that performs secure computation for analyzing the voting by using the shares stored in a distributed manner.

Abstract: A marketing support apparatus includes: a registration unit that registers, in a first database, concealed data obtained by concealing customer information acquired from a customer information management apparatus, an acquisition unit that acquires, from a predetermined business operator, a calculation logic for calculating an evaluation value indicating a degree of a potential customer based on the customer information, a calculation unit that calculates the evaluation value from the concealed data using the calculation logic, and an output unit that outputs output information based on the evaluation value.

Abstract: An application-layer multicast (ALM) system allowing high-speed ALM with precise routing control and simplified configuration. The routing control and data copying are separately performed with different hardware circuits: routing controller; and data copying device. The routing control is performed on the CPU of a computer, whereas the data copying is performed on a dedicated hardware circuit. This separate structure is employed in each intermediate node in the ALM network. The data copying device communicates with the routing controller within the same segment to manage the content data to be relayed by the intermediate system using a management ID uniquely assigned to the content data within the segment.

Abstract: A shared cache server which is capable of being shared among groups in a common network in which a plurality of groups is placed in a virtually partitioned manner. A storage device stores contents in each of a plurality of storage areas corresponding to a plurality of groups. Virtual interfaces are placed in a manner so as to correspond to a plurality of virtual networks. An address converting function section, when receiving a packet requiring for contents through the virtual interface from a client, converts part of an IP (Internet Protocol) of the packet to an internal address corresponding to the virtual interface. A cache function section, based on the internal address converted by the address converting function section, reads contents of a corresponding group from a storage area of the storage device.

Abstract: An application-layer multicast (ALM) system allowing high-speed ALM with precise routing control and simplified configuration. The routing control and data copying are separately performed with different hardware circuits: routing controller; and data copying device. The routing control is performed on the CPU of a computer, whereas the data copying is performed on a dedicated hardware circuit. This separate structure is employed in each intermediate node in the ALM network. The data copying device communicates with the routing controller within the same segment to manage the content data to be relayed by the intermediate system using a management ID uniquely assigned to the content data within the segment.