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Communications of the ACM

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Authentication Using Pulse-Response Biometrics
From Communications of the ACM

Authentication Using Pulse-Response Biometrics

We propose a new biometric based on the human body's response to an electric square pulse signal, called pulse-response.

From Communications of the ACM

Technical Perspective: Cleaning Up Flaws in TLS Implementations

One unfortunate fact about protocols is that as they get older and applied to more scenarios — and TLS is used basically everywhere — they tend to gain weight....

A Messy State of the Union
From Communications of the ACM

A Messy State of the Union: Taming the Composite State Machines of TLS

We systematically test popular TLS implementations and find unexpected transitions in many of their state machines that have stayed hidden for years. We show how...
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