SYSTEMS AND METHODS FOR SECURELY PROVIDING ADAPTIVE BIT RATE STREAMING MEDIA CONTENT ON-DEMAND

摘要

A system for securely providing adaptive bit rate streaming media content on-demand may include a security sever of a program distributor that selects, based on a received authorized request, which of a differently encrypted stored versions of a “special segment” of the requested program to deliver to the receiving device during the transmission of the requested program. The selection may be based on a pseudo-random selection process per request for the program based on an identifier of the request associated with the remote control device. The selection of which of the differently encrypted stored versions of the “special segment” of the ordered program to deliver may be= based on the current session. The secure remote then sends to the receiving device the correct decryption key for the receiving device to decrypt the particular encrypted version selected of the “special segment” to be sent to the receiving device.

主权项

1. A method in a media content transmission system, the method comprising:
receiving, by a security server of the content transmission system, a first request for a streaming media content program, the first request originating from a first secure remote control device communicatively coupled to a first remote receiving device; in response to receiving the first request, authenticating, by the security server, the first request; selecting, by the security server, an encrypted segment of the requested streaming media content program, the encrypted segment being one of a first plurality of encrypted segments having been stored prior to receiving said first request for the streaming media content program, each encrypted segment of the first plurality of encrypted segments being a differently encrypted version of a same segment of the of the requested streaming media content program and having a different corresponding decryption key; and transmitting, by the media content transmission system, one or more of: the selected encrypted segment of the requested streaming media content program and an identifier indicative of the selected encrypted segment to enable the first remote receiving device to receive the selected encrypted segment in response to the first request.