This thesis provides a way for users to easily add and remove devices to secure groups, allowing for a more intuitive way of making connections between devices. These groups allow users to seamlessly make connections between their devices once devices are added to a group. Current models for sending data from device to device either involve proprietary cables and manufacturer-specific connectors or complex systems of PINs and passwords to authorize a user/device. In an environment where a user expects to be able to quickly send data between his mobile devices, the time it takes to initialize a connection should not be longer than the time it takes to send the data. The solution proposed in this thesis establishes a model using groups, with group owners and group members. Groups are identified using shared public and private key pairs. The group model establishes implicit trusted relationships between members of a group without having to explicitly authorize a member, simplifying and reducing the number of authenticated links a user must create between his devices.
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