Speaker: Martin Schmiedecker Certificate transparency - what is it, and what can be done with it? Certificate Transparency is the new kid on the block of TLS. Specified as RFC6962 it is designed to prevent fraudulently issued TLS certificates, and detect wrongdoing from Certificate Authorities. This talk will present Certificate Transparency in full details. Beginning from the attacks it prevents, key players and threat models, we will dive into the public data that is readily available and present ideas how to enhance its ecosystem as a whole.