Patent ID: 8208614

Claim:
A reliability authorizing method of determining whether to authorize a service transfer between a first device and a second device connected to a network based on first reliability of the first device or a user of the first device and second reliability of the second device or a user of the second device, the reliability authorizing method comprising: authenticating the first device and the second device; collecting the first reliability of the first device or the user of the first device and the second reliability of the second device or the user of the second device when the first and second devices are authenticated; obtaining a first requested level indicating reliability that is requested to the first device or the user of the first device by the user of the second device from the second device, and a second requested level indicating reliability that is requested to the second device or the user of the second device by the user of the first device from the first device; storing the first reliability of the first device or the user of the first device collected and the second reliability of the second device or the user of the second device collected at the collecting; performing a first future estimation of the first reliability based on the first reliability of the first device or the user of the first device stored at the storing, and performing a second future estimation of the second reliability based on the second reliability of the second device or the user of the second device stored at the storing; determining whether the first future estimation of the first reliability of the first device or the user of the first device satisfies the first requested level obtained, and whether the second future estimation of the second reliability of the second device or the user of the second device satisfies the second requested level obtained; and starting the service transfer when the first and second requested level obtained is determined to be satisfied at the determining.