| 摘要 |
An access control for confidential contents is enabled with DRM technology based on a group to which a user belongs. With a method issuing a license by a computer in response to a request to access predetermined contents with a client computer, which is made by a user who belongs to at least one of a plurality of groups, the group to which the user belongs is determined based on a user ID of a user who makes a license request via the client computer, and on a group list which is stored in a storage device and associates a user ID with a group, a license is generated by referencing a permission condition of an access control list stored in a storage device storing permission conditions based on the determined groups, and the generated license is output to the client computer. |
