In order to validate update messages that contain the BGPsec_Path attribute, the recipient must have access to two pieces of data that are obtained from valid RPKI certificates and ROAs. Which are these two pieces of data? (Choose two)
A. the OPEN BGP message that is successfully negotiated between BGP speakers to use the new BGP attribute, the BGPsec_Path
B. the exchanged certificate with Internet Routing Registries using cryptographic identity management systems
C. the public key infrastructure with the necessary certificate objects, the digitally signed routing objects, and the distributed repository system to hold
D. the AS number, public key, and subject key identifier for each valid RPKI router certificate
E. the AS number and the list of IP address prefixes for each valid ROA.
