| 摘要 |
A method for managing a key in a user domain and a method for using contents in a user domain is provided to enhance the security of a user domain and to enable a user to change a domain key conveniently when the user worries about the security. A first sever transmits a domain subscription trigger message to a certain terminal, and receives a domain subscription request message about a user domain from the terminal. A first sever transmits a domain subscription response message to a certain terminal, and the domain subscription response message includes a first domain key and a temporal key about the specific user domain. The first sever is a DA(Domain Authority)/DEA(Domain Enforcement Agent)(50), and the first domain key is an MDK(Master Domain Key). |
