Patent ID: 8463814

Claim:
A non-transitory data recording and processing medium in at least one of a consumer electronic device and a personal computer, comprising: copy protected digital data comprising: a passive part comprising content to be protected in encrypted form; an active part comprising information about how to decrypt the content comprised in the passive part; and a hidden part; wherein the active part and the corresponding passive part constitute an active content and the hidden part is allocated to at least one of the active content, the active part of the active content and the passive part of the active content, wherein the active part is configured to automatically amend itself to build an amended active part each time at least one of decryption and encryption of the passive part is performed, wherein the hidden part comprises information at least about properties of said active content, said active part and said passive part; wherein the active part of the active content further comprises rules that either allow or forbid decryption of the content comprised in the passive part of the active content based on the information comprised in the hidden part, wherein said data is residing on said data recording and processing medium, wherein said recording and processing medium pertains to at least one of the consumer electronic device and the personal computer, and wherein the active part of the active content is configured to permanently deny decryption of the content comprised in the passive part of the active content if the information comprised in the hidden part does not comply with the rules of the active part.