Web and Mobile Security, CTFs and binary reversing/exploitation and all things security. We are looking for more like minded peeps in the 313 area who wants to be apart of the official Defcon 313 Group.
PKI and all the things that go along with it. I’m frequently quoted as saying PKI is easy (and I stand by that statement) it’s the ancillary stuff that we invariably struggle with. I want to dig into what TPMs, HMACs, SmartCards, and other things are and why & how they impact PKI. I want to discuss OCSP & CRLs and the advantages and disadvantages of both. I want to start the presentation by giving a primer on different kinds of encryption (namely covering symmetric vs. asymmetric) and hashing and explain how they differ. I want to cover certificate chaining & key pairs & encryption algorithms.