In accordance with one embodiment, a method for securing control words is
provided. The method includes receiving scrambled digital content in a
descrambler integrated circuit. The method further includes receiving an
encrypted control word in the descrambler integrated circuit, decrypting
the encrypted control word using a key stored in a register circuit of
the descrambler integrated circuit, and descrambling the scrambled
digital content in the descrambler integrated circuit using the decrypted
control word.