Patent ID: 8347407
Filing Date: 2013-01-01
Classification: G06F,H04L

Abstract:
1. An authority management method in a data transmission system having a first information equipment terminal including communication unit and storing secret information, a secret information management server, and a second information equipment terminal being able to communicate with the first information equipment terminal and the secret information management server, the authority management method comprising: a data transmission step of transmitting information necessary to enable use of the secret information from the secret information management server to the second information equipment terminal of a correct use-authorized partner beforehand; a step of storing the transmitted information in the second information equipment terminal; a partner confirmation step of confirming, by the first information equipment terminal, storage of the transmitted information in the second information equipment terminal when use of the secret information is needed; and a step of enabling, by the first information equipment terminal, the use of the secret information by confirming the storage.