Content receiving device and method for receiving encoded content, content supplying device and method for supplying encoded content

摘要

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.