Resynthesis of verifying keys

[howardwu]

Topic

Resynthesis of verifying keys via validators in consensus.

1. Precommit at a block height xxxx by all validators to perform operation.
   a. Each validator receives a subset of functions to process.
2. Commit with your subset of verifying keys.
3. Every validator receives every other validators commit messages and check well-formedness of all verifying keys.
4. Execute by updating internal DB with the new verifying keys and advance with the standard consensus algorithm.
   a. As a technicality, this can be deemed an empty block and proceed to block + 1 and/or the next epoch.