Christina Braz

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The design of usable yet secure systems raises crucial questions when it comes to balancing properly security and usability. Finding the right tradeoff between these two quality attributes is not an easy endeavor. In this paper, we introduce an original design model based on a novel usability inspection method. This new method, named Security Usability(More)
The usability of security systems has become a major issue in research on the efficiency and user acceptance of security systems. The authentication process is essential for controlling the access to various resources and facilities. The design of usable yet secure user authentication methods raises crucial questions concerning how to solve conflicts(More)
We envision an environment where humans communicate directly with computers without additional authentication inputs like passwords, passphrases, PINs (Personal Identification Numbers), biometrics, or other existent authentication systems; and where humans network (intercommunicate) continually with wireless (mobile) devices. In this paper, we propose a new(More)
We envision an environment where humans communicate directly with computers without additional authentication inputs like passwords, passphrases, PINs (Personal Identification Numbers), biometrics, or other existent authentication systems; and where humans <i>network</i> (intercommunicate) continually with wireless devices. In this paper, we propose a new(More)
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