On Central Bank Digital Currency: A composable treatment

ePrint Report: On Central Bank Digital Currency: A composable treatment

István Vajda

Central Bank Digital Currency (CBDC) is in the phase of discussion in most of countries. In this paper, we consider the security issues of centralized retail CBDC. Our focus is on the design and analysis of the underlying cryptographic protocol. The main security requirements against the protocol are transaction anonymity and protection against tax evasion. The protocol provides security guarantees in case of the strongest model of an …

analysis anonymity bank case cbdc countries currency design digital digital currency environment eprint report evasion focus general main protection protocol report requirements retail security security issues tax transaction