Anonymity controlled electronic payment systems
Joris Claessens, Bart Preneel, Joos P. L. Vandewalle · 1999
Today's most used electronic payment systems o®er no anonymity at all to their users. Electronic payment systems exist that provide unconditional anonymity. In this article electronic payment systems are described in which anonymity can be controlled. The requirements of such systems are discussed, and two types of tracing mechanisms are de¯ned. An overview of the proposed anonymity controlled systems is given. We analyze to what extent these systems o®er the de¯ned tracing mechanisms. The importance of anonymous communication is stressed.