Patent ID: 7328345

Claim:
A system for providing security of content within a heterogeneous distribution chain, comprising: a content owner having content; an aggregator arranged to perform the following actions: receiving the content, the content being encrypted with a content key, and appended to a key wrapper chain, the key wrapper chain comprising the content key, the content key being encrypted with a first encryption key; decrypting the content key using the first encryption key; decrypting the content using the content key; modifying the decrypted content by combining the decrypted content with at least one of a unique fingerprint or a watermark, wherein the fingerprint or watermark identifies at least the aggregator; employing the content key to encrypt the modified content; encrypting the content key with the first encryption key; encrypting the first encryption key using a second encryption key; generating another key wrapper chain by appending the encrypted content key to the encrypted first encryption key; and appending the other key wrapper chain to the encrypted modified content.