RPKI and the RTR protocol

The Resource Public Key Infrastructure (RPKI) to Router Protocol, or RTR Protocol, is an essential part of securing the global routing table that makes for a safer internet. It communicates between a validator and device in charge of allowing or rejecting routes in its table. The RTR protocol allows heavy cryptographic processing to be done outside of routers, which have better things to do with their control plane processor like running BGP convergence algorithms or other routing-related tasks. Cloudflare has released an open-source software package called rpki-rtr-client that performs the router portion of the RTR protocol and can help test existing code bases. The future of RTR may include additional functions while staying lightweight, as it is expected to progress alongside other draft works in the IETF proposal for RTR version 2.