> why is it so hard that all RIRs make their TAL files available under > the same URL path but different hosts, e.g., https://ripe.net/rpki/tal, > https://arin.net/rpki/tal ?
no, you are supposed to get TRUST material from alex's secret stash. sigh. it should be a dnssec lookup of ripe.net, tls secured lookup, find a TAL as defind in the RFCs, and fetch it via tls. randy