Creator of Pretty Good Privacy
According to Wikipedia,
Philip R. Zimmermann is an American computer scientist and cryptographer. He is the creator of Pretty Good Privacy , the most widely used email encryption software in the world. He is also known for his work in VoIP encryption protocols, notably ZRTP and Zfone. Zimmermann is co-founder and Chief Scientist of the global encrypted communications firm Silent Circle.
Phil Zimmermann is affiliated with the following schools: