Patent ID: 8316241
Filing Date: 2012-11-20
Classification: G09G,H04L,H04N,H04W

Abstract:
1. A data transmitting apparatus comprising: a first encryption unit that encrypts image information of input content with a first encryption scheme; a wireless communication unit that transmits, by wireless communication, the image information encrypted by the first encryption unit; a second encryption unit that encrypts image information of input content with a second encryption scheme; a wire communication unit that transmits, by wire communication, the image information encrypted by the second encryption unit; a device information obtaining unit that obtains device information of a device connected to the data transmitting apparatus; a verification unit that verifies validity of a data receiving apparatus, based on the device information obtained by the device information obtaining unit; and a control unit that performs control as to whether to obtain the device information through the wireless communication unit or obtain the device information through the wire communication unit, and as to whether to transmit the image information encrypted by the first encryption unit from the wireless communication unit or transmit the image information encrypted by the second encryption unit from the wire communication unit when the verification unit verifies that the data receiving apparatus is authorized, wherein when the device information is obtained through wireless communication and when the device information is obtained through wired communication, a revocation process is performed to determine whether the device is an unauthorized device by checking whether a key selection vector is included in a key selection vector list of unauthorized devices,