RECORDING MEDIUM, PROGRAM, AND INFORMATION DISTRIBUTION DEVICE

摘要

PROBLEM TO BE SOLVED: To properly protect information which should not be leaked outside.SOLUTION: A recording medium which can be connected with an information processing device, comprises: a communication unit which communicates with the connected information processing device; a recording unit which records key information; and a control unit. The control unit performs control for: generating first key information and second key information which makes a pair with the first key information; recording the first key information and the second key information in the recording unit; transmitting the recorded first key information to an external device via the information processing device; receiving third key information and forth key information encrypted in the external device on the basis of the first key information via the information processing device; decrypting the received third key information and forth key information by using the second key information; and executing a predetermined program by using the decrypted third key information and forth key information.