Patent ID: 8634552

Claim:
A host with a processor, the host comprising: a communications interface structured and arranged to: receive a first request from a client to access an encrypted stream of media content, and transmit the encrypted stream to the client; a cryptographic data store structured and arranged to store: the encrypted stream of media content and a table of initialization vectors, each of the initialization vectors associated with a specific portion of the encrypted stream of media content; a processor structured and arranged to receive a time-shift command from the client comprising a command to at least one of rewind the encrypted stream of media, pause the encrypted stream of media, or access the encrypted stream of media beginning at a specified time into the stream, identify a specified portion of the encrypted stream of media content by associating the received time-shift command with the specified portion of the encrypted stream of media content, access the table of initialization vectors, retrieve, from the table of initialization vectors, a specific initialization vector associated with the identified specified portion of the encrypted stream of media content, and instruct the communications interface to transmit the identified specified portion of the encrypted stream of media content and the specific initialization vector.