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Although the application range of Wireless Sensor Networks (WSN) is manifold, all applications have monitoring purposes in common. But WSNs usually lack (a) data collection options independent of predefined timing intervals and (b) a mobile access. Both options become important in emergency cases, since offering quick reactions ( e.g. , calling the ambulance) is essential and based on recognized changes of known and accepted value ranges of sensors, like for the temperature in personal health data. Therefore, this chapter introduces Secure Pull Requests (SPR), an efficient solution to request data immediately and location-independently. In support of a flexible access control, especially for emergency cases, an embedded privilege management solution is designed to maintain access to WSNs and their data. If the user's access for pulling data is granted, the request is forwarded to the node in the WSN using TinyIPFIX, which answers with a full data set including all data available data. Since some of this data might not be relevant to the requestor, it is filtered to match the user's request and to respect his privileges. This filtering process is delegated to the server side to minimize the workload of WSN-based constrained devices. The prototype developed is implemented in a modular manner and adaptable to user-specific requests.

While the application range of Internet-of-Things (IoT) is manifold, all applications have monitoring purposes in common, but they usually lack (a) data collection options independent of pre-defined timing intervals and (b) a mobile access. Both options are requested by user that what to be informed about events (e.g., accidents, noise) even when not at home offering quick reactions (e.g., calling the ambulance, police, fire department) in case of emergency. Therefore, this paper introduces WebMaDa — a mobile access framework with a fine-grained privilege management solution. It allows authorized users to monitor collected data and to request data immediately and location-independent. if the user's access for pulling data is granted, the request is forward to the collection point (node) in the network, which answers with a full data set including all data available. Since some of this data might not be relevant to the requestor, it is filtered to match the user's request and to respect his privileges. To reduce the workload of the network, consisting of constrained devices, the filtering process is delegated to the server side of the application. The prototype of WebMaDa with pull support was implemented in a modular manner in order to adapt it to user-specific requests.