RPKI doesn't really solve the problem as it is a proof of origin. You can still inject routes, just ensure you add the original AS as origin of these routes. B

RPKI doesn't really solve the problem as it is a proof of origin. You can still inject routes, just ensure you add the original AS as origin of these routes. BGPsec would solve this issue, but is currently not deployed at all (and won't be before a long time).