This has been up for a couple of weeks (it's taken me that long to find an hour to watch), but it's definitely worth passing along. It's a talk given at Google by Harvard Professor Dr. Christopher Thorpe on cryptography titled "Efficient, Secrecy-Preserving, Provably Correct Computation (and Some Cool Applications). It goes beyond some of the very basic crypto that most of us understand into interesting and much more recent ideas.
What makes this video remarkable isn't the crypto he's discussing, it's that he makes it accessible to someone who has forgotten most of their math (such as me). In fact, an attentive viewer with little more than a high-school algebra education can follow most of it.
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