To provide access to protected content.
By the system and the method 10, use of items having associated usage rights is managed. This system includes an activation device 20 constructed to issue a software package having a pair of a public key associated with a user and a secret key, a license device 50 constructed to issue a license 52, a usage device constructed to receive the software package, to receive the license, and to allow a user to access the item according to the license, and a subscription management device constructed to maintain a subscription list including the public key associated with the user. When presence of the public key in the subscription list corresponding to requested content is verified, the license is issued by the license device 50.
Kato Kazunori
Katsuichi Nishimoto