A method consistent with certain embodiments carried out at a television
provider headend involves receiving a feed of scrambled television
content in the form of a stream of packets; descrambling the scrambled
television content to produce a stream of clear packets; selecting a
packet for multiple encryption; duplicating the packet to provide first
and second packets; re-mapping the first and second packets to first and
second packet identifiers; encrypting the first packet under a first
encryption algorithm to produce a first encrypted packet; encrypting the
second packet under a second encryption algorithm to produce a second
encrypted packet; and re-mapping clear packets to the first packet
identifier. This abstract is not to be considered limiting, since other
embodiments may deviate from the features described in this abstract.