| 摘要 |
<p>A system and method for encrypting and recording content to removable storage mediafor use by multiple set-tops. When content is recorded to the storage media, thecontent is encrypted with a content instance key. This content instance key isencrypted with the public key of one set-top box and a duplicate of the content instancekey is encrypted with the public key of another set-top box. Either set-top boxmay decrypt the content instance key with the private key that corresponds withits public key so that the encrypted content from the removable storage media maybe made available in the clear.</p> |
