Ryan Cox will cover "Survivable Key Compromise in Software Update Systems". What happens when your signing keys are compromised or checked into GitHub? He will demo Notary, Docker's implementation of TheUpdateFramework; described in the paper. TUF is a system that grew out of Tor and is capable of surviving key compromises as well as several other issues in current update managers.
Samuel, Justin, et al. "Survivable key compromise in software update systems." Proceedings of the 17th ACM conference on Computer and communications security. ACM, 2010.