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Fix sandwich attack on honest reorgs (#12418)

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* Fix sandwich attack on honest reorgs

* fix test

---------

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
This commit is contained in:
Potuz
2023-05-22 14:23:20 -03:00
committed by GitHub
parent c80019bd0b
commit e0e7c71eb5
5 changed files with 25 additions and 3 deletions
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1
config/params/config.go
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@@ -69,6 +69,7 @@ type BeaconChainConfig struct {
// Fork choice algorithm constants.
ProposerScoreBoost uint64 `yaml:"PROPOSER_SCORE_BOOST" spec:"true"` // ProposerScoreBoost defines a value that is a % of the committee weight for fork-choice boosting.
ReorgWeightThreshold uint64 `yaml:"REORG_WEIGHT_THRESHOLD" spec:"true"` // ReorgWeightThreshold defines a value that is a % of the committee weight to consider a block weak and subject to being orphaned.
ReorgParentWeightThreshold uint64 `yaml:"REORG_PARENT_WEIGHT_THRESHOLD" spec:"true"` // ReorgParentWeightThreshold defines a value that is a % of the committee weight to consider a parent block strong and subject its child to being orphaned.
ReorgMaxEpochsSinceFinalization primitives.Epoch `yaml:"REORG_MAX_EPOCHS_SINCE_FINALIZATION" spec:"true"` // This defines a limit to consider safe to orphan a block if the network is finalizing
IntervalsPerSlot uint64 `yaml:"INTERVALS_PER_SLOT" spec:"true"` // IntervalsPerSlot defines the number of fork choice intervals in a slot defined in the fork choice spec.

1
config/params/mainnet_config.go
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@@ -115,6 +115,7 @@ var mainnetBeaconConfig = &BeaconChainConfig{
// Fork choice algorithm constants.
ProposerScoreBoost: 40,
ReorgWeightThreshold: 20,
ReorgParentWeightThreshold: 160,
ReorgMaxEpochsSinceFinalization: 2,
IntervalsPerSlot: 3,