Abstract: A training server classifies a common model and an individual model transmitted from a plurality of client devices on the basis of the individual model transmitted from a training data management server, and updates the common model and the individual model in accordance with a classification result.

Abstract: An authentication apparatus holds: a combination of a concealment template generated from a secret key and biometric information through use of biometric cryptography and encrypted identity verification information obtained by encrypting identity verification information through use of the secret key; and biometric information on a user, and is configured to: extract the secret key from the concealment template through use of the biometric information on the user; acquire the identity verification information by decrypting the encrypted identity verification information through use of the extracted secret key; and verify identity of the user based on the acquired identity verification information.

Abstract: A biometric signature system holds a first template indicating a result of transforming, by predetermined transformation, first biometric information acquired from a predetermined part of a user; and a second template indicating a result of transforming, by predetermined one-way transformation, second biometric information acquired from the predetermined part of the user, identifies a parameter for which a similarity between the first template of the person to be authenticated corrected, generates a second template of the person to be authenticated from each piece of corrected second biometric information, and determines whether authentication of the person to be authenticated is successful by comparing each generated second template with the second template.

Abstract: Provided is a signature verification system comprising: a signature terminal including a biometric information acquisition unit for acquiring biometric information of a user, a public template certificate generation unit for generating a public template certificate by subjecting the biometric information to predetermined processing, a key pair generation unit for generating a pair of a secret key and a public key, and a public key certificate generation unit for generating a public key certificate by providing a biometric signature to the public key with the biometric information used as a key; and a verification terminal including a public key certificate verification unit for receiving a transaction including the public template certificate, the public key certificate, and a signature to verify the validity of the public key certificate using the public template certificate, and a signature verification unit for verifying the signature using the public key certificate.

Abstract: This biometric signature system comprises: a biometric certificate storage module that stores a biometric certificate generated on the basis of a user's biometric information; a biometric information acquisition module that acquires new biometric information from the user; a biometric certificate generation module that generates a new biometric certificate on the basis of the new biometric information; a biometric signature generation module that assigns a biometric signature to the new biometric certificate on the basis of the new biometric information; a biometric signature verification module that verifies the biometric signature using the biometric certificate stored in the biometric certificate storage module; and a biometric certificate registration module that registers the new biometric certificate in the biometric certificate storage module if verification of the biometric signature was successful.

Abstract: A biometric signature system holds a first template indicating a result of transforming, by predetermined transformation, first biometric information acquired from a predetermined part of a user; and a second template indicating a result of transforming, by predetermined one-way transformation, second biometric information acquired from the predetermined part of the user, identifies a parameter for which a similarity between the first template of the person to be authenticated corrected, generates a second template of the person to be authenticated from each piece of corrected second biometric information, and determines whether authentication of the person to be authenticated is successful by comparing each generated second template with the second template.

Abstract: A database management method for controlling, by a computer including a processor, a memory, and a storage device, an in-memory database for storing all tables and indices in the memory and a disk type database for storing a part of a table stored in the storage device in a buffer included in the memory, in which the computer acquires information of the tables and the indices of the in-memory type database, determines the type of reduction operation for reducing an area on the memory used by the indices, executes the type of reduction operation determined for the indices, and adds, to the buffer, an area reduced from the area of the memory used by the indices of the in-memory type database by the reduction operation to expand the buffer of the disk type database.

Abstract: This biometric signature system comprises: a biometric certificate storage module that stores a biometric certificate generated on the basis of a user's biometric information; a biometric information acquisition module that acquires new biometric information from the user; a biometric certificate generation module that generates a new biometric certificate on the basis of the new biometric information; a biometric signature generation module that assigns a biometric signature to the new biometric certificate on the basis of the new biometric information; a biometric signature verification module that verifies the biometric signature using the biometric certificate stored in the biometric certificate storage module; and a biometric certificate registration module that registers the new biometric certificate in the biometric certificate storage module if verification of the biometric signature was successful.

Abstract: The present invention shortens the time required for watch list verification, and shortens the time required generally for the personal identification processing which includes watch list verification. In a personal identification system, a biometric information watch list comparison function (31) performs a first comparison of first biometric information in a traveler information DB (53), and biometric information on a biometric information watch list (52). Thereafter, a simplified alien immigration examination comparison function (41) performs a second comparison of the first biometric information in the traveler information DB (53), and second biometric information acquired by a biometric information acquisition function (62). As a result of the comparison, in the case where the difference between the time of the first comparison and the current time is within a previously defined time period, a terminal displays a first comparison result, and a second comparison result.

Abstract: In additional enrollment of a template in a biometric authentication system, the template is automatically enrolled on the basis of a plurality of authentication results to assure a user's convenience and security. A post-migration authentication server receives a first template and a second template from a post-migration authentication terminal, performs authentication on the basis of the comparison result between the received first template and the user's preliminarily first enrolled template, and provisionally enrolls the first template and the second template. It repeats the reception, authentication, and provisional enrollment and calculates a match probability from a plurality of comparison results of the provisionally first enrolled templates, determines whether or not to store a second enrolled template on the basis of the match probability, and automatically enrolls the second template in the post-migration authentication server.

Abstract: The present invention provides a system and a method for speeding up immigration. In first immigration, first biometric information is stored in a immigration biometric information DB. A normal immigration client terminal displays a first result of comparing an ID information watch list with a biometric information watch list. In subsequent second immigration, the first biometric information in the immigration biometric information DB is compared with second biometric information obtained by a simplified immigration client terminal. Then, the simplified immigration client terminal displays a second result of comparing the first biometric information with the watch list information that is added after the first comparison is done. Thus even if the number of registrations in a watch list database is large, a small amount of similar watch list information is displayed, reducing the time for checking the results by the operator.

Abstract: In additional enrollment of a template in a biometric authentication system, the template is automatically enrolled on the basis of a plurality of authentication results to assure a user's convenience and security. A post-migration authentication server receives a first template and a second template from a post-migration authentication terminal, performs authentication on the basis of the comparison result between the received first template and the user's preliminarily first enrolled template, and provisionally enrolls the first template and the second template. It repeats the reception, authentication, and provisional enrollment and calculates a match probability from a plurality of comparison results of the provisionally first enrolled templates, determines whether or not to store a second enrolled template on the basis of the match probability, and automatically enrolls the second template in the post-migration authentication server.