To provide a license data providing device having a function for restoring license data in writing of the license data from the license providing device to a storage device and so forth, even in a case that the license data has been lost during transmission due to an undesired situation such as failure of the power supply or the like, or a case that the receiver has failed in processing for the transmitted license data, thereby protecting the right of the user for reproduction of contents. The license data providing device includes: an encrypted communication path establishing unit for establishing an encrypted communication path used for exchange of data with the storage device; a log storage unit for storing information regarding exchange of data with the storage device through the encrypted communication path, including information for identifying the storage device; and a retransmission/output determination unit for determining whether or not the contents usage right information should be restored, based upon the information regarding exchange of data, stored in the log storage unit.