TRCFromDir reads all the {ISD}-V*.trc (e.g., ISD1-V17.trc) files contained directly in dir (no subdirectories), and out of those that match ISD isd returns the newest one.

Error strings.

Addr is the (ISD-AS IP)-tuple used for entity addresses in the TRC file.

CertLog is the cert log server entry.

CoreAS is the core AS entry.

Rains is the rains entry.

RootCA is the root CA entry.

TRCVerResult is the result of verifying core AS signatures.