A content protection system, comprising: a user terminal; and a license management apparatus, the user terminal comprising: judging means for judging, when a content is to be reproduced or executed, whether or not the user terminal has a usage right of the content; usage right requesting means for making, if the judging means judges that the user terminal does not have the usage right of the content, a request to the license management apparatus to acquire the usage right of the content; and means for generating, when the content is to be acquired, temporary license information on the content; the license management apparatus comprising: license information generating means for generating, when the request to acquire the usage right is received from the user terminal, license information containing information on an expiration date that is set based on a timing when the request is received; and license information transmittingmeans for transmitting the generated license information to the user terminal, wherein the temporary license information contains information on a temporary expiration date; the judging means judges that the user terminal has the usage right of the content until the expiration date indicated by the license information received from the license management apparatus arrives; the usage right requesting means makes, when the temporary license information is present, the request to the license management apparatus to acquire the usage right of the content; and the user terminal further comprises means for displaying, as information on the usage right of the content, the temporary expiration date before acquiring the license information, and the expiration date indicated by the license information after acquiring the license information. a user terminal; and a license management apparatus, the user terminal comprising: judging means for judging, when a content is to be reproduced or executed, whether or not the user terminal has a usage right of the content; usage right requesting means for making, if the judging means judges that the user terminal does not have the usage right of the content, a request to the license management apparatus to acquire the usage right of the content; and means for generating, when the content is to be acquired, temporary license information on the content; judging means for judging, when a content is to be reproduced or executed, whether or not the user terminal has a usage right of the content; usage right requesting means for making, if the judging means judges that the user terminal does not have the usage right of the content, a request to the license management apparatus to acquire the usage right of the content; and means for generating, when the content is to be acquired, temporary license information on the content; the license management apparatus comprising: license information generating means for generating, when the request to acquire the usage right is received from the user terminal, license information containing information on an expiration date that is set based on a timing when the request is received; and license information transmittingmeans for transmitting the generated license information to the user terminal, wherein license information generating means for generating, when the request to acquire the usage right is received from the user terminal, license information containing information on an expiration date that is set based on a timing when the request is received; and license information transmittingmeans for transmitting the generated license information to the user terminal, wherein the temporary license information contains information on a temporary expiration date; the judging means judges that the user terminal has the usage right of the content until the expiration date indicated by the license information received from the license management apparatus arrives; the usage right requesting means makes, when the temporary license information is present, the request to the license management apparatus to acquire the usage right of the content; and the user terminal further comprises means for displaying, as information on the usage right of the content, the temporary expiration date before acquiring the license information, and the expiration date indicated by the license information after acquiring the license information.