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Thursday, August 29 • 2:30pm - 3:00pm
Making a Subset difference: The Crypto in AACS

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When I wanted to understand how AACS works I found very little information/explanation. The Subset-Difference tree and how it provides efficient revocation in a broadcast encryption scenario was particularly opaque.

This talk aims to demystify the crypto in AACS, explaining how we can revoke a device's ability to decode media without relying on co-operation from the device.

avatar for Rael Sasiak-Rushby

Rael Sasiak-Rushby

I code 9-5, and sometimes more than that. I believe Security helps you learn by challenging assumptions, and Mathematics is beautiful logic; Cryptography is the glorious child of the two.

Thursday August 29, 2019 2:30pm - 3:00pm BST
Track 4 (Rookie)

Attendees (4)