Technische Universit¨at Munc¨ henLehrstuhl fur¨ DatenverarbeitungUniv.-Prof. Dr.-Ing. K. DiepoldContent management andprotection usingTrusted Computing andMPEG-21 technologiesFlorian SchreinerVollst¨andiger Abdruck der von der Fakult¨at fur¨ Elektrotechnik und Infor-mationstechnik der Technischen Universit¨at Munc¨ hen zur Erlangung desakademischen Grades einesDoktor-Ingenieursgenehmigten Dissertation.Vorsitzender: Univ.-Prof. Dr. sc.techn. Andreas HerkersdorfPru¨fer der Dissertation: 1. Univ.-Prof. Dr.-Ing. Klaus Diepold2. Univ.-Prof. Dr.-Ing. Georg SiglDie Dissertation wurdeam 07.10.2010 bei der Technischen Universit¨at Mun-¨chen eingereicht unddurchdie Fakultat¨ fur¨ Elektrotechnik undInformation-stechnik am 15.02.2011 angenommen.AcknowledgmentsThis thesis and the presented research have been elaborated at the Tech-nische Universit¨at Munc¨ hen in the Institute for Data Processing, which wasan inspiring and procreative environment for my research.Firstly, I would like to thank my supervisor Prof. Dr.-Ing. Klaus Diepoldfor his outstanding assistance and support during the work at the institute.I am grateful for the inspiring and motivating discussions, which helped mein the research and development. Furthermore, I want to thank him for thecomments and the review of this thesis, which were a valuable support inits preparation.