We have developed an application prototype, which allows users to securely
chat and exchange les in a local network without a need of a central server.
The aim of the application is to present a solution to the problem that may
arise when trying to send a message to a user in a local network, but the
Internet cannot be accessed due to technical restrictions or other limitations.
We describe important protocols, technologies and concepts, used to develop
our application. We present and describe the most important phases in
the development of our solution, from dening the addressed problem to
demonstration of developed user interface.
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