Patent ID: 9646162
Date: 2017-05-09
CPC Classifications: G06F,H04L,H04N

Claim:
1. A method comprising: sending a dynamic adaptive streaming over hypertext transfer protocol (DASH) media presentation document (MPD) comprising an essential descriptor, wherein the essential property descriptor comprises a scheme uniform resource name (URN) indicating a location for guidelines and definitions for implementation of a service protection decryption; receiving a request for a segment of the MPD, wherein the request comprises instructions for encrypting the segment; performing, in response to the request and when digital rights management (DRM) encryption is not present for the segment, content protection encryption by encrypting a data content segment associated with the segment to generate an encrypted data content segment; performing, using the scheme URN, after the performing the content protection encryption, and in response to the instructions, service protection encryption by further encrypting the encrypted data content segment to generate an encrypted segment; and sending the encrypted segment.