Validate content in pubsub - Githubissues

ethresearch / sharding-p2p-poc

Proof of Concept of Ethereum Serenity Peer-to-Peer Layer on libp2p PubSub System

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Validate content in pubsub #18

Closed mhchia closed 6 years ago

mhchia commented 6 years ago

What is wrong?

We need to validate the received content(collations, beacon chain messages, ...) before relaying them.

How can it be fixed

Survey Validator in pubsub
- Validator should reject the content when it is considered invalid.
  - How to do validation
    - Invalid because of format: can be validated thoroughly in golang
    - Invalid because of content: possibly need to be validated outside golang since the context(e.g. blocks, states) might be stored in Python
      - Need RPC/IPC between validator function in Go and Python side
        
        RPC/IPC is used when go side and python side are individual processes(so no bindings in this case)
        
        or other easier communication between go and python code(still need bindings)