A traitor tracing enabling system assigns sequence keys to a media player
to enable better tracability with fewer actual variations in the content.
The system comprises a technique for increasing a number of sequence
keys, allowing a finer granularity in a traitor tracing process with
little increase in sequence key storage or in bandwidth required to
transmit sequence keys to a media player. The present system comprises a
variation table which maps the sequence keys to the individual variations
in the file, such that multiple sequence keys can be mapped to a single
variation.