Toward a Public-Key Management Framework for Virtual Assets and Virtual Asset Service Providers
Thomas Hardjono, Alexander Lipton, Alex Pentland · The Journal of FinTech · 2020
The recent Financial Action Task Force (FATF) Recommendations define virtual assets and virtual asset service providers (VASPs), and require under the Travel Rule that originating VASPs obtain and hold the required and accurate originator information and the required beneficiary information on virtual asset transfers. In this paper, we discuss the notion of key ownership evidence as a core part of originator and beneficiary information required by the FATF Recommendations. We discuss the approaches to securely communicate the originator and beneficiary information between VASPs, and review the existing standards for public-key certificates as applied to VASPs and virtual asset transfers. We propose the notion of a trust network of VASPs in which originator and beneficiary information, including key ownership information, can be exchanged securely off-chain while observing the individual privacy requirements.