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Interactive TV Standards by Anthony Smith-Chaigneau, Steven Morris

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13 Security in MHP and OCAP

Reliability is a key consideration in consumer applications, and MHP and OCAP have a number of security measures to help ensure that applications do not cause problems for the middleware. In this chapter, we look at the security model in MHP and OCAP and see how this affects applications. For application developers and broadcasters, we will discuss how the receiver can authenticate downloaded applications, and how broadcasters can set limits on what an application can do.

It is probably no understatement to say that DTV broadcasters are paranoid about security, which means that sometimes receiver manufacturers have to be as well. There are two major parts to this, as follows.

•   Making sure that unauthorized people ...

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