How David Chaum’s eCash Spawned a Cypherpunk Dream

Alumnus David Chaum (Ph.D. CS/Business Administration ’82) is the subject of a Bitcoin Magazine article titled “The Genesis Files: How David Chaum’s eCash Spawned a Cypherpunk Dream.” Before most people had heard of the internet, and most homes had personal computers, Chaum was concerned with the future of online privacy.  His 1981 paper, “Untraceable Electronic Mail, Return Addresses, and Digital Pseudonyms” laid the groundwork for research into encrypted communication over the internet.   He designed an anonymous payment system for the internet which he outlined in a 1982 paper titled “Blind signatures for untraceable payments.”   The magazine article focuses on the trajectory of Chaum’s subsequent creation of a digital money system called eCash and how his work remains relevant today.