Package combinator contains methods for constructing SCION forwarding paths.

Package db contains common database abstractions for our infra.

Package idiscovery fetches the topology from the discovery service.

Package itopo stores the static and dynamic topology.

Package segfetcher contains all the logic that is needed to fetch segments, verify and store segments in an efficient manner.

Package segverifier implements primitives for verifying path segments.

Package trust defines type Store, a unified interface for TRC and Certificate retrieval.