Unit and method for secure processing of access controlled audio/video data

This invention claims a method for accessing the control audio / video data of security processing unit it can receive it comprises at least one first control word cw1 and the first authority executing parameter c1 at least one second control word cw2 and the second authorization executing parameter c2 the control information with said processing unit and the first access control device ca1 is connected with said processing unit wherein it comprises: For detecting and application and said first access control device ca1 memory m1 in the content related to the first authority executing parameter c1 a device and to obtain a first control word cw1 device of the second access control device ca2 it is integrated to a processing unit ut the processing unit on which is used to test and application and is related to said second access control device ca2 the memory of m2 the content related to the second authorization executing parameter c2 and device for obtaining the second control word cw2 device of the decryption module of md it can be sequence by using the first control word cw1 and the second control word cw2 to access the controlled audio / video data decoding the control word cw1 cw2 and it is composed of the first and second access control device ca1 ca2 supplying and it is stored in said md in the decryption module It is composed of said executing unit for safely processing data access the control audio frequency or video data method of it is the purpose of this invention.