Anonymization by High-Performance Scalable Mixing Original work by David Chaum, Voting Systems Institute, USA; Debajyoti Das, Aniket Kate, Purdue University, USA; Farid Javani, Alan T. Sherman, Cyber Defense Lab, UMBC, USA; Anna Krasnova, Radboud University, NL and Joeri de Ruiter, University of Birmingham, UK. ABSTRACTcMix is the first practical system that can prevent traffic analysis of chat messages at scale. It creates a complete anonymity set every second for all messages sent dur…

How DigiCash Blew Everything In September 1998 the high-tech company DigiCash finally went bankrupt. The office in Palo Alto, California remained open for a while but it was merely a stay of execution.  Two months ago the company filed for Chapter 11. Nobody realizes, but with the “pending failure” of DigiCash, a bit of Dutch Glory died.  The company made a brilliant product.  Even Silicon Valley was jealous of the avant-garde technology invented in the Amsterdam Science Park. Internet “guru” Nicholas…