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Title

eduGAIN Federated Service Catalog

DescriptionAt the moment, the only way you get an overview of services in eduGAIN is via metadata. While this is how the system is designed to work (machine to machine), service info is also interesting to humans e.g. to browse, to know if an SP already exists etc. A preliminary WG is starting in REFEDs to look at how service catalogs could be built. An eduGAIN level catalog should build on that work and also integrate with other relevant catalogs e.g open science cloud, NREN's own catalogs etc.
ProposerAnn Harding
Resource requirements

Standardisation/spec via refeds

Prototype implemention for aggregation.

Protoype implementation for federation level infra.

Pilot.

+1'sWolfgang Pempe (DFN): encourage cross-federation support for mdui:Keywords.


Title

Storing History and Evolution of Metadata in a Distributed Ledger

Description

The aggregated metadata of eduGAIN is under constant change as entities get added, removed, or changed. While daily backups are made, there is no event-based changelog and no trace of which change was made when. When an entry of interest is examined, the search for the exact event timestamps of changes pertaining to that timestamp are tedious by searching old copies of the entity database manually.

The proposed system stores any change to the metadata aggregate one-by-one in a ledger as soon as it happens. That way, even intra-day changes (between daily database backups) can be observed and a "rewind" of the entity list to specific point in time becomes simple.

For improved traceability of any changes, the ledger can be made distributed and authenticated in the way that both the publishing eduGAIN participant (sending side) and the eduGAIN OT (receiving side) both sign the change in a distributed ledger.

ProposerStefan Winter (RESTENA)
Resource RequirementsVMs, storage for the ledger, a blockchain implementation, someone to work on that so it fits our needs
+1's

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