The MPEG-2 standard defined by ISO 13818-1 supports a range of
transmission methods for a range of services. This document
provides a threat analysis and derives the security requirements
when using the Transport Stream, TS, to support an Internet
network-layer using Unidirectional Lightweight Encapsulation
(ULE) defined in RFC4326. The document also provides the
motivation for link-layer security for a ULE Stream. A ULE Stream
may be used to send IPv4 packets, IPv6 packets, and other
Protocol Data Units (PDUs) to an arbitrarily large number of
Receivers supporting unicast and/or multicast transmission.
The analysis also describes applicability to the Generic Stream
Encapsulation (GSE) defined by the Digital Video Broadcasting
(DVB) Project.