Mike Brown, CTO, ISARA Corporation. With the impending quantum age, there is a need to revisit our assumptions around how we use cryptography within our corporate and government networks, and across the internet. Most of the discussion so far has focused on key agreement because of the obvious confidentiality concerns raised by the “harvest and decrypt” threat. But what has been missing has been much emphasis on the challenge of migrating a PKI to be quantum safe. In this talk we will highlight some of the challenges that make PKI migration as hard, or harder then the challenge of changing our key exchange algorithms to be quantum safe.