DISTRIBUTED ANONYMIZATION SYSTEM, DISTRIBUTED ANONYMIZATION DEVICE, AND DISTRIBUTED ANONYMIZATION METHOD
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机译:分布式匿名化系统,分布式匿名化设备和分布式匿名化方法
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摘要
The present invention provides a distributed anonymization device capable of executing a distributed anonymization process without the risk of leaking data of users to other parties. This distributed anonymization device is provided with: a storing means for storing a user identifier and personal information in association with one another; a setting means for setting, as a dummy identifier, the identifier that does not correspond to the user identifier from among all of the externally-notified identifiers; a separating means for separating all the identifiers including the dummy identifier into groups; a transmitting means for transmitting to another device, the separation information indicating the content of the identifiers in each group; and a determining means for determining, each of groups, whether the proportion of identifiers in the abovementioned distributed anonymization device and the other device satisfy a predetermined anonymity index.
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