| 摘要 |
PROBLEM TO BE SOLVED: To formally copy copyright protected software, stored on a master medium, to a user's storage medium as to the software copy processor. SOLUTION: A content identifier read means 2 reads the identifier of software on the master medium 1 and a storage medium identifier read means 4 reads the identifier of the copy destination storage medium 3; and they are sent to a center 5 which administers copyright vending. The center 5 generates a signature from the information of the sent identifier by a signature generating means 6 and sends it to the user. The sent signature is written on the copy destination storage medium 3 by a signature write means 7. A signature generating and comparing means 8 generates a signature on the user side from the information of the identifier sent to the center and compares this generated signature with the signature written on the copy destination storage medium 3 and only when the signatures match each other, a data copy means 9 reads the copy object software out of the master medium 1 and copies it to the copy destination storage medium 3. |
