| 摘要 |
<p>A method of controlling at least one of a plurality of distributed receiving devices for encrypted broadcast services comprising the steps of broadcasting to the at least one device (12.1 to 12.n) an application module 22 comprising an application code part, a business rules part and an application data part. The module is sequentially mutated 22', 22" by changing at least one of the application code part, the business rules part and the application data part. The mutated application modules 22, 22' 22"... are sequentially executed by the device and the device is caused to operate in accordance with the mutated application modules.</p> |
