Cyrus Minwalla - Latest
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Privacy-Preserving Post-Quantum Credentials for Digital Payments
Digital payments and decentralized systems enable the creation of new financial products and services for users. One core challenge in digital payments is the need to protect users from fraud and abuse while retaining privacy in individual transactions. We propose a pseudonymous credential scheme for use in payment systems to tackle this problem. -
A central bank digital currency for offline payments
Offline functionality is a key consideration for a potential CBDC. We describe the different types of offline functionality based on their duration outside of network connection—either intermittent (for short periods) or extended (for longer periods). We discuss the advantages and drawbacks of each and consider implications for end-user devices, system resilience and universal accessibility. -
Security of a CBDC
Security is an important element in ensuring public confidence in a central bank digital currency (CBDC). This note highlights the required security properties of a CBDC system and the challenges encountered with existing solutions, should the Bank of Canada choose to issue one. -
Designing a CBDC for universal access
If the Bank of Canada issues a central bank digital currency, the technology should be designed for universal access. -
Technology Approach for a CBDC
In this note, we highlight a range of technical options and considerations in designing a contingent system for a central bank digital currency (CBDC) in Canada and explore how these options achieve stated public policy goals.