Smart plombering och märkning

Sammanfattning: The background for this degree thesis is a need to replace the existing seal used to protect equipment containing secret or sensitive equipment used by Swedish Defence. The target design should satisfy both the need for tamper evidence and reduce Life Cycle Cost. In developing a new design for a seal, additional benefits such as improved logistics support and indication of attack methods such as heat and solvents have been considered. The lack of guiding principles for end users of seals became evident during the interviews. Major concerns for the future are education of users, information about actions if a seal is broken and user liability. The design work was divided into several phases. A feasibility study was performed including investigation of theory of labels, materials and possible technologies. The feasibility study also includes a requirement analysis based on interviews. This analysis was later used as a tool for evaluating different concepts. Using the list of construction criteria and the morphologic matrix 27 different concepts where created. All of these concepts did not go further in the concept development but are described in the thesis as part of the result. Evaluation of methods for validation and verification was done to get a deeper understanding of material properties and facilitate the requirement process in future work. The final result of the design process is two concepts. The first concept is based on 2D-barcode, thermocromic material and a double foil label in which the material at the bottom is brittle. The second concept contains active RFID protected by a brittle material and with clear guiding principles. Both concepts are suitable solutions. The reason for presenting two concepts is some remaining uncertainties with RFID technology used in the second concept.