FIELD: physics, computer engineering.
SUBSTANCE: invention relates to computer engineering. The invention can be implemented in a conditional access content broadcast system where it is desirable to identify and take measures against receiving equipment, applied when sharing control words. Owing to the requirement that receiving equipment used in the system transmits to a transmission station a conditional access content message at a precisely defined time, the invention provides a method through which a server identifies receiving equipment participating in the sharing of control words and prevents said receiver from further accessing said content.
EFFECT: effective protection of transmitted content.
12 cl, 2 dwg
