CEI EN 62455

This International Standard specifies the terminal for a service
purchase and protection system for digital broadcasts, called the
18Crypt system. It is applicable in all countries and regions with
suitably compliant broadcasting and multimedia distribution
systems. Guidelines for compatible broadcast services are given in
this standard. The service purchase and protection functions
operate in a pure broadcast environment that may be combined with a
bidirectional interactivity channel.

This standard is applicable to the following broadcast
systems.

a) IP datacast over DVB-H systems

IP datacast over DVB-H is an end-to-end broadcast system for
delivery of any type of digital content and services using IP-based
mechanisms optimized for devices with limitations on computational
resources and battery. An inherent part of the IP datacast system
is that it comprises a unidirectional DVB broadcast path that may
be combined with a bi-directional mobile/cellular interactivity
path. IP datacast is thus a platform that can be used for enabling
the convergence of services from broadcast/media and
telecommunications domains (for example, mobile/cellular). This
standard specifies service purchase and protection for IP datacast
over DVB-H systems (see Table B.6 for an overview of references to
one such system).

b) DVB T/C/S systems DVB T/C/S systems are end-to-end broadcast
systems for audio/video data that employ an MPEG2 transport stream
and use terrestrial, cable or satellite broadcast networks. This
standard specifies a system for the protection of these broadcasts
in a pure broadcast environment. In addition, this standard
specifies how purchasing, key management and registration may be
carried out over an optional interactivity channel. The protection
technologies offered by this standard are designed to operate
within an existing DVB SimulCrypt environment (see Table B.6 for an
overview of references).

c) MPEG2 TS-based IP systems MPEG2 TS-based IP systems employ
bi-directional IP networks for the (broadcast) delivery of MPEG2
transport streams. This standard specifies a system for the
purchase and protection of services and content delivered via these
networks. This standard is applicable to, for example, DVB-IPI
systems (see Table B.6 for an overview of references).

d) Non-MPEG2 TS-based IP systems Non-MPEG2 TS-based IP systems
employ bi-directional IP networks for the (broadcast) delivery of
audio/video or other data using IP protocols instead of an MPEG2
transport stream. This standard specifies a system for the purchase
and protection of services and content delivered via these networks
(see Table B.6 for an overview of references).