feat: use 16-bit random value to compute validator indices #7301
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## devnet-5 #7301 +/- ##
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- Coverage 48.65% 48.63% -0.02%
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Files 603 603
Lines 40427 40436 +9
Branches 2065 2067 +2
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- Hits 19670 19667 -3
- Misses 20719 20731 +12
Partials 38 38 |
nflaig
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@ensi321 could you separate into 2 PRs: 1 for the main change and 1 for refactoring? |
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In the latest Electra spec, the likelihood vs effective balance graph represents a step function instead of linear for calculating proposer validator index and sync committee indices. eg. Two validators with one having 33ETH and the other having 40ETH will have the same probability of being elected as proposer because 33 and 40ETH are in the same "bucket" due to existed 8-bit random byte is not granular enough.
Changes random byte from 8-bit to 16-bit with restore the graph to linear.
Relevant spec: ethereum/consensus-specs#4039