Patent ID: 9231931
Filing Date: 2016-01-05
CPC Classification: G06F,H04L

Claim Text:
1. A method of building a trust relationship in an eUICC environment, comprising: transmitting, by a trust requesting object, a trust relationship requesting message including identification information and signature information of the trust requesting object to a trust verifying object; delivering, by the trust verifying object, the trust relationship requesting message to a trust relationship relay object and receiving trust information of the trust requesting object corresponding to the trust relationship requesting message from the trust relationship relay object; and verifying, by the trust verifying object, the signature information of the trust requesting object using the trust information of the trust requesting object, wherein, in the receiving, the trust verifying object receives trust information of the trust requesting object corresponding to the trust relationship requesting message from the trust relationship relay object in response to the trust information of the trust requesting object not being found in the trust verifying object, and wherein the trust requesting object creates authentication information and the trust information of the trust requesting object based on eUICC identification information and transmits the trust information and the authentication information to the trust relationship relay object.