Information recording medium reproducing method, information recording medium, reproducing apparatus and information medium managing method
AssigneeSony Corporation
InventorMichiaki Yoneda
Life of this patent
Estimating the term…
Abstract
In an information recording medium reproducing method, an information recording medium, a reproducing apparatus and an information recording medium managing method, a predetermined server is accessed on the basis of an address recorded in an information recording medium to issue key data from the server, and encrypted data recorded in the information recording medium are decrypted with the key data thus issued.
Claims10
A method of reproducing an information recording medium, on which encrypted data are recorded, said method comprising the steps of:
- accessing a predetermined server on the basis of an address recorded in the information recording medium;
- and
- decrypting data recorded in the information recording medium with key data issued from said server;
- wherein the address is data for specifying said server and a home page corresponding to said information recording medium, and said method further comprises a step of accessing the home page corresponding to the information recording medium on the basis of the address to acquire the corresponding key data.
An information recording medium in which encrypted data are recorded so that the encryption of the data is released with key data issued from a predetermined server and an address required to access said server is recorded;
- wherein the address is data for specifying said server and a home page corresponding to said information recording medium, and said method further comprises a step of accessing the home page corresponding to the information recording medium on the basis of the address to acquire the corresponding key data.
A reproducing apparatus for reproducing an information recording medium on which encrypted data are recorded, said apparatus comprising:
- access means for accessing a predetermined server on the basis of an address recorded on said information recording medium;
- and
- decrypting means for decrypting the encrypted data recorded in said information recording medium with key data issued from said server;
- wherein the address is data for specifying said server and a home page corresponding to said information recording medium, and said method further comprises a step of accessing the home page corresponding to the information recording medium on the basis of the address to acquire the corresponding key data.
A method of managing an information recording medium in which encrypted data are recorded;
- wherein key data for decrypting said encrypted data are issued by an access based on an address recorded in the information recording medium;
- and
- wherein the address is data for specifying said server and a home page corresponding to said information recording medium, and said method further comprises a step of accessing the home page corresponding to the information recording medium on the basis of the address to acquire the corresponding key data.
Dependencies are inferred from the claim text.