The Bank for International Settlements (BIS) Innovation Hub has presented the final report on its private central bank digital currency (CBDC) initiative, Project Tourbillon. The prototypes built in the project’s framework could allow payment anonymity for CBDC transactions.
The 46-page report, published on Nov. 29, explores the concepts of privacy, security and scalability on the material of two prototypes based on the designs of one of the pioneers of cryptography, David Chaum. The prototypes were called eCash 1.0 and eCash 2.0. While the former provides “unconditional payer anonymity,” the latter has “more resilient” security features.