oasisprotocol / oasisprotocol/oasis-core

Storage availability probes

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c:security c:storage s:needs adr
Dominant language
Go
Stars
369
Forks
151
Avg merge
1d 3h
Merged PRs (30d)
6

Description

We need to implement a storage availability probe mechanism. This requires several components:

  • Nodes doing the actual probes (probably using the existing storage API). I believe other storage nodes should be included in making these probes as storage nodes may perform regular syncs anyway and they also have some of the state at hand.
  • A mechanism to present proofs of misbehavior. It is hard to prove non-availability though as it could be transient, due to (localized) network issues, malicious nodes (e.g., probe nodes could just say that something wasn't available) etc. One way is for proofs to be submitted to consensus and then other nodes could provide counter-proofs. This requires deposits of some kind to disincentivize fake proofs and rewards for probing nodes.

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First steps

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Research direction

No files, tests, or entry points are named. Start by locating the existing storage API and consensus mechanisms, then determine how probe nodes, misbehavior proofs, counter-proofs, deposits, and rewards would fit together; done requires an agreed design and implementation of the full mechanism.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
blockchain, distributed-systems
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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