February 2017 - Vol. 60 No. 2

February 2017 issue cover image

Features

Research and Advances Research highlights

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 some of these flaws lead to critical security vulnerabilities. 

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