PRIVATE INFORMATION DISTRIBUTION MANAGEMENT METHOD, PRIVATE INFORMATION IDENTIFICATION DEVICE IN PRIVATE INFORMATION DISTRIBUTION MANAGEMENT SYSTEM, PRIVATE INFORMATION USING ENVIRONMENT IDENTIFICATION DEVICE, PRIVATE INFORMATION PROVIDING DEVICE, PRIVATE INFORMATION USING DEVICE, DISCLOSURE USE RULE DETERMINATION PROGRAM. AND PROGRAM FOR EACH DEVICE.

摘要

PPROBLEM TO BE SOLVED: To provide an effective art protecting the righteousness of private information and leakage of the private information in changing distribution of the private information. PSOLUTION: This private information providing device 1 produces a private information capsule 5 formed by capsulating a set of the private information 52 to be provided and a disclosure using rule for the private information 2 along with the disclosure using rule determination means 51. The private information using device 2 recognizes the righteousness of the private information capsule obtained from the private information providing device 1 by a capsule warrant 60 issued by a private information identification device 3, and refers only the private information 52 whose reference is permitted by the own device via a disclosure using rule determination means 51 in the private information capsule 5. The disclosure using rule determination means 51 collates the using environment information of the private information using device 2 with using environment information in the use environment warrant 70 of the private information using device 2, which is obtained from the private information using environment identification device 4, so as to determine the referable private information 52. PCOPYRIGHT: (C)2004,JPO