Industry interview – Ian
Harvey, Senior Vice President, Advanced Technology, Fox Filmed
Ian Harvey is Senior Vice President, Advanced Technology for Fox Filmed
Entertainment (Fox). In this role he is responsible for analyzing and
developing new technologies to create the roadmap for distribution
innovation of Fox content. Ian also directs how current and future content
protection technologies should be used to mitigate piracy.
In October 2013, Ian participated in GlobalPlatform’s Trusted Execution Environment
(TEE) conference. Here, he discusses Fox’s premium content protection efforts, the role
of the TEE and the benefits that standardization can bring to the market.
- How has premium content evolved over recent years?
Premium content has changed: ‘Premium content’ used to
refer to DVD, then Blu-ray, while today it can include a number of
technologies such as ultra HD. There has always been a need to protect
premium content. In the past, however, this has not been very successful;
DVD and similarly Blu-ray have both been compromised and illegally copied.
The fundamental problem the industry has always experienced when it comes
to content protection is that it is based on non-secure platforms. The TEE
changes this: it provides a more secure platform on which to build our
Even though TEE technology exists, what’s really important to Fox
is for the TEE to be standardized and certified by a recognized industry
association such as GlobalPlatform.
- Why is it important to Fox to have a standardized and
The lack of a standardized and certified TEE is resulting in a
fragmented market in which players are developing and implementing TEEs in
their own way, without oversight. This is causing a problem for content
providers as we now have to ‘trust’ that TEEs are implemented
correctly and are solid and secure. We have no industry standard or
‘approval stamp’ to enable us to recognize when a TEE meets a
During GlobalPlatform’s TEE Conference, Spencer Stephens, CTO of
Sony Picture Entertainment, discussed the concept of a
‘trusted’ TEE. I believe this is a great way to explain what
the industry requires and also describes the work GlobalPlatform is
undertaking to standardize the technology.
It is important for us to align our work with what GlobalPlatform is
doing. We don’t want a situation where Fox is doing one thing in
regards to TEE certification and GlobalPlatform is doing another. We work
closely with many GlobalPlatform members including ARM and Trustonic to
ensure we remain aligned with the association’s activity in this
- Why is the TEE important for premium content protection /
what value will the technology deliver?
The name ‘trusted’ is there for a reason; the TEE provides
a route of trust and creates a secure operating environment. It enables
content providers with a means to trust what is happening with our
content. The TEE needs to evolve to deal with the decryption of content all
the way through to the secure video path. This is an area GlobalPlatform
is in the process of addressing; without protecting the video path the TEE
only does a small part of the job protecting content.
- What is the secure video path?
This is an area where content is decrypted and decompressed. The
content industry takes advantage of compressed content on a disc to save
space; this is then decompressed in the video path so that we can render
the video and add graphics and menu options, for example. This all has to
be done securely because if not, our content will be compromised and
illegally copied. This entire path has to be protected by the TEE to ensure
that at any point content is protected from an attack.
- What are Fox’s premium content protection efforts
There are three main areas we are focusing on at the moment:
- The development of the Secure Content Storage Association
(SCSA) group. This association, created by Fox, Warner
Bros., Western Digital and SanDisc, will look at the secure storage
and secure playback of our content. Within the secure playback mode, w e
are also developing Robustness Rules around the TEE. A Robustness Rule
specifies the requirements that must be adhered to on any device before it
can host our content. We hope that in the future, GlobalPlatform
will be able to certify our Robustness Rules, however, for the
moment, we need to have some form of guidelines in place which
specify what is required on a devices in order to host our premium
- Advancing our work with Motion Picture Laboratories
(MovieLabs). Fox is working with MovieLabs (a non-profit
research and development joint venture started by the six major motion
picture studios) to create a document which
communicates our content protection requirements. The initial version of
this document is now available.
- Blu-ray premium content requirements. As Fox
distributes much of its premium content through Blu-ray we are
constantly trying to advance Blu-ray from a premium content
There are of course many areas we are working on to improve delivery of
our premium content, and one of the key things is for us to ensure that it
is done securely. For Fox, there are two considerations when it comes to
- Protecting the content we have.
- Enabling different business models.
For example, allowing a consumer to have our content before we enable
them to watch it. If Fox was able to secure its content and specify
when a consumer could access it, this might enable different business
- How do Fox’s Robustness Rules align with
GlobalPlatform’s standardization work?
The work GlobalPlatform is undertaking to standardize and test the TEE
is already included as requirements within our Robustness Rules. The
problem we have at the moment is that we don’t have the
capabilities, experience or bandwidth to check that every implementation
complies with the criteria set out in our Robustness Rules. If the industry
has a standard, recognized TEE, this will enable us to easily understand
which TEEs are able to securely host our content.
- What benefits will standardizing the TEE bring to the
It will increase confidence in the TEE. There are many different
implementations and the market is very fragmented right now. Standardizing
the TEE will reassure all stakeholders in the industry that we can trust
the TEE and it has been deployed correctly. The term ‘trusted’
TEE is a good way to describe what GlobalPlatform is bringing to the
- What are your short and long term predictions for premium
content protection and the role of TEE in protecting the content?
Fox will always have a requirement for its premium content to be
protected on devices. As the threat landscape evolves and new attacks come
to market such as side channel attacks, I believe we will need to respond
to these attacks and add renewability to the software that is controlled
by the content provider.
From the perspective of the TEE, the key areas that need to evolve are
the standardization and certification that GlobalPlatform is undertaking.
Fox needs to contribute to the work of GlobalPlatform to ensure the
protection of a secure video path within its work efforts. The association
needs to continue working with its members to reach its end goal of
standardizing the TEE.
What the market needs to understand is that the pirates we are trying to
protect our content from are resilient – they don’t take
‘no’ for an answer! We need different barriers and levels of
protection to combat these threats; the TEE is not the panacea, the TEE is
one tool to help combat piracy.
- How important are events such as GlobalPlatform’s TEE
Conference in supporting the growth and standardization of TEE technology?
Based on the questions received throughout the conference I would say
very important. The concept of the TEE was challenged and questioned
during the event, indicating there is still confusion in the industry and
a need for further education.
as the one developed by MovieLabs (as mentioned in question five) play a
vital role in communicating the content providers’ requirements for
the TEE. GlobalPlatform’s TEE Conference brought together
stakeholders from different markets and provided a platform for knowledge
and information to be shared and for each market to understand the
relevance of the TEE and how it can be utilized for a wide variety of use
Fox looks forward to working with GlobalPlatform and its members to
advance its efforts in establishing a standardized and certified TEE,
which is workable for each market sector.