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The tremendous recent efforts to develop a nd deploy ubiquitous mobile com- munication possibilities are changing the demands b ut also possibilities for establishing new business and commerce relationship s. Within this paper we show our innovative approach for integrating waterm ark and cryptography based methods within a framework of new application scenarios spanning a wide range from dedicated and user specific service s, "Try&Buy" mechanisms to general means for long-term customer relationshi ps. Based on a description of the challenges of the application domain and the existing work we show, which methods must be used for establishing service s in a fast convenient and secure way for conditional access services. The pap er closes with an overview of steps for practically establishing these concept s.

Conditional and User Specific Access to Services and Resources using Annotation Watermarks