Electronic device and control method thereof

A server device comprising:

• communication circuitry;
• a memory configured to store instructions;
• and
• one or more processors configured to comprise a processing circuitry,
• wherein, when the instructions are individually or collectively executed, the one or more processors cause the server device to:
• when a plurality of pieces of content, disclosure restriction status, and validity period information are received, identify, among the plurality of pieces of content, disclosure restriction content with a disclosure restriction set, wherein the disclosure restriction status and the validity period information correspond to each of the plurality of pieces of content,
• encrypt the disclosure restriction content using an encryption key,
• acquire playback schedule information of the plurality of pieces of content comprising the encrypted disclosure restriction content,
• transmit the playback schedule information to the electronic device through the communication circuitry, and
• when a request for decryption of the disclosure restriction content is received from the electronic device, transmit the encryption key corresponding to the disclosure restriction content to the electronic device through the communication circuitry.

A method of an electronic device comprising:

• receiving playback schedule information that comprises a plurality of pieces of content, a disclosure restriction status, and validity period information, wherein the disclosure restriction status and the validity period information correspond to each of the plurality of pieces of content;
• identifying disclosure restriction content to which encryption is applied among the plurality of pieces of content;
• transmitting a decryption request for the disclosure restriction content to the server device when a time before a predetermined time is reached based on a playback start time of the disclosure restriction content;
• when an encryption key corresponding to the disclosure restriction content is received from the server device, decrypting the disclosure restriction content using the encryption key;
• and
• displaying, on the display, the plurality of pieces of content comprising the decrypted disclosure restriction content based on the validity period information.

A non-transitory computer-readable storage medium storing a computer command that, when executed by a processor of an electronic device, causes the electronic device to perform an operation, wherein the operation comprises:

• receiving playback schedule information that comprises a plurality of pieces of content, a disclosure restriction status, and validity period information, wherein the disclosure restriction status and the validity period information correspond to each of the plurality of pieces of content;
• identifying disclosure restriction content to which encryption is applied among the plurality of pieces of content;
• transmitting, to the server device, a decryption request for the disclosure restriction content when a time before a predetermined time is reached based on a playback start time of the disclosure restriction content;
• when an encryption key corresponding to the disclosure restriction content is received from the server device, decrypting the disclosure restriction content using the encryption key;
• and
• displaying, on the display, the plurality of pieces of content comprising the decrypted disclosure restriction content based on the validity period information.