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Establishing secure communication among a group of physically collocated people is a challenge. This problem can be reduced to establishing authentic public keys among all the participants - these public keys then serve to establish a shared secret symmetric key for encryption and authentication of messages. Unfortunately, in most real-world settings,(More)
Mobile users share the same expectations as wired users: they want to communicate with other people, they expect the communication to be secure, and it should all be easy. However, mobility poses many challenges for security. Communication is often ad hoc, and the infrastructure may be untrusted. Secure communication relies on the distribution of authentic(More)
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