DIGITAL CABLE TELEVISION BROADCAST RECEIVER

摘要

To download the conditional access software into an IC card chip corresponding to a global platform technique in accordance with an operation scheme for the digital cable television. A global platform card manager 21 of the IC card chip 2 is provided with a conditional access software decoding part 23. A decoding key specific to each conditional access software vendor and a key identification number corresponding to the decoding key are preset in the conditional access software decoding part 23. The conditional access software 22 encrypted by the conditional access software vendor is decoded using the decoding key designated by the key identification number in the conditional access decoding part 23, when received.