Contents receiving device and method for receiving encoded contents, contents supplying device and method for supplying encoded contents
AssigneeSamsung Electronics Co., Ltd.
InventorSeo-won HAN
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Abstract
An encoded contents receiving method of a contents receiving device is disclosed. The method includes pairing with a mobile device through wired or wireless communication, receiving a private key which is generated by the paired mobile device, receiving an encoded control word (CW) from a contents supplying device, and decoding the encoded CW based on the received private key to descramble an encoded contents supplied by the contents supplying device.
Claims32
An encoded contents receiving method of a contents receiving device, the method comprising:
- pairing with a mobile device through one from among a wired communication and a wireless communication;
- receiving a private key which is generated by the paired mobile device;
- receiving an encoded control word (CW) from a contents supplying device;
- and decoding the encoded CW based on the received private key to descramble an encoded contents supplied by the contents supplying device.
A contents receiving device which receives an encoded contents, the device comprising:
- a receiver which is configured to receive an encoded contents from a contents supplying device;
- a communicator which is configured to communicate with a mobile device;
- a controller which is configured to control the communicator to pair with the mobile device, to receive a private key from the paired mobile device, and to receive an encoded control word (CW) from the contents supplying device through the mobile device;
- and a decipherer which is configured to decode the encoded CW based on the received private key to descramble the encoded contents supplied by the contents supplying device.
A key generating method for decoding an encoded contents, the method comprising:
- pairing, by a mobile device, with a contents receiving device through communication;
- purchasing contents from a contents supplying device and receiving a contents purchase certificate;
- generating a public key and a private key based on the contents purchase certificate;
- transmitting the private key to the paired contents receiving device;
- transmitting the public key to the contents supplying device;
- and receiving from the contents supplying device an encoded control word (CW) generated by the contents supplying device on the basis of the public key and transmitting the encoded CW to the contents receiving device.
A mobile device comprising:
- a key generator which is configured to generate a public key and a private key;
- a communicator which is configured to communicate with a contents receiving device and a contents supplying device in one from among a wired manner and wireless manner;
- and a controller which is configured to control the communicator to pair with the contents receiving device, to transmit a private key to the paired contents receiving device, to transmit the public key to the contents supplying device and to receive from the contents supplying device an encoded control word (CW) which is generated on the basis of the public key, and to transmit the encoded CW to the contents receiving device.
Dependencies are inferred from the claim text.