In part one we talked about DES, Horst Feistel, the NSA and the public. Who was right about the durability of the algorithm and key standard? How long was DES viable, and how long was it used?

Even after the genesis of the DES algorithm and the drama associated, things were still incomplete. We still need asymmetric cryptography to achieve all the things that the Internet needs. We’ll talk through the history of RSA and what happened when source code wants to be free.