[double-sign] Provide proof of double sign in slash record sent to beaconchain #2253

fxfactorial · 2020-02-12T04:28:59Z

Large PR which implements slashing as result of a double-signing event.

cmd/harmony/main.go

consensus/leader.go

staking/slash/double-sign.go

rlan35 · 2020-02-22T01:20:36Z

cmd/harmony/main.go

@@ -217,9 +217,21 @@ func setupLegacyNodeAccount() error {
 		_, initialAccount = genesisShardingConfig.FindAccount(pubKey.SerializeToHexStr())
 	}

-	if initialAccount == nil {
+	const crtValdidatorBLS = "be23bc3c93fe14a25f3533feee1cff1c60706845a4907c5df58bc19f5d1760bfff06fe7c9d1f596b18fdf529e0508e0a"


rlan35 · 2020-02-22T01:24:09Z

cmd/trigger-double-sign/main.go

@@ -0,0 +1,25 @@
+package main


put into /test if you want to keep it.

how do you build into binary if put under test? i mean, will go_exectuable_build.sh build it and put into bin?

rlan35 · 2020-02-22T01:32:39Z

consensus/consensus.go

@@ -129,6 +129,8 @@ type Consensus struct {
 	lastBlockReward *big.Int
 	// Have a dedicated reader thread pull from this chan, like in node
 	SlashChan chan slash.Record
+	// only during testing
+	DoDoubleSign bool


consensus/consensus_service.go

rlan35 · 2020-02-22T01:48:37Z

consensus/construct.go

+		consensusMsg = consensus.populateMessageFields(
+			message.GetConsensus(), blockHash[:],
+		)
+	}


should you also change the "case msg_pb.MessageType_COMMIT:" part?

i think it currently is handled correctly

rlan35 · 2020-02-24T18:40:17Z

hmy/api_backend.go

@@ -398,6 +400,9 @@ func (b *APIBackend) GetTotalStakingSnapshot() *big.Int {
 	stakes := big.NewInt(0)
 	for i := range candidates {
 		validator, _ := b.hmy.BlockChain().ReadValidatorInformation(candidates[i])
+		if !effective.IsEligibleForEPOSAuction(validator) {


Why add this condition here? What is "GetTotalStakingSnapshot" used for?

because otherwise you are counting the stake of banned or active=false validators for the median stake

internal/params/protocol_params.go

staking/slash/double-sign.go

rlan35 · 2020-02-24T22:01:55Z

staking/slash/double-sign.go

+	}
+	// candidate.ConflictingBallots
+
+	// TODO Why this one printng have 00000000 for signature? something wrong earlier


If these todos are launch blocking, better create issues for better tracking.

put under "Staking" project.

staking/slash/double-sign.go

…each block

cmd/harmony/main.go

consensus/construct.go

consensus/leader.go

core/state/statedb.go

internal/configs/sharding/testnet.go

node/node_genesis.go

node/double_signing.go

staking/slash/double-sign.go

…ly half of what was actually slashed

… external for slash rate

… filter out for staked validators, correct availaibility measure on running counters

consensus/leader.go

rlan35 · 2020-02-27T23:10:37Z

core/blockchain.go


+	cls = append(cls, candidates...)


I think technically not needed since I clear out all the slashing candidates in end writeblockwithstate

core/staking_verifier.go

internal/chain/engine.go

node/node_genesis.go

rlan35 · 2020-02-27T23:42:07Z

node/worker/worker.go

@@ -300,10 +306,56 @@ func (w *Worker) IncomingReceipts() []*types.CXReceiptsProof {
 	return w.current.incxs
 }

+// CollectAndVerifySlashes ..
+func (w *Worker) CollectAndVerifySlashes() error {
+	allSlashing, err := w.chain.ReadPendingSlashingCandidates()


where do you remove the one that's proposed from pending?

i remove them all in writeblockwithstate,

if err := bc.UpdateBlockRewardAccumulator( batch, payout, block.Number().Uint64(), ); err != nil { return NonStatTy, err } if err := bc.DeletePendingSlashingCandidates(); err != nil { return NonStatTy, err }

staking/slash/double-sign.go

…fier

…ment

…ash rate based BLSKey count

parent eb93305 author flicker-harmony <[email protected]> 1583258969 +0300 committer flicker-harmony <[email protected]> 1583258969 +0300 Resolve conflict # This is the commit message harmony-one#5: [double-sign] Provide proof of double sign in slash record sent to beaconchain (harmony-one#2253) * [double-sign] Commit changes in consensus needed for double-sign * [double-sign] Leader captures when valdator double signs, broadcasts to beaconchain * [slash] Add quick iteration tool for testing double-signing * [slash] Add webhook example * [slash] Add http server for hook to trigger double sign behavior * [double-sign] Use bin/trigger-double-sign to cause a double-sign * [double-sign] Full feedback loop working * [slash] Thread through the slash records in the block proposal step * [slash] Compute the slashing rate * [double-sign] Generalize yaml malicious for many keys * [double-sign][slash] Modify data structures, verify via webhook handler * [slash][double-sign] Find one address of bls public key signer, seemingly settle on data structures * [slash] Apply to state slashing for double signing * [slash][double-sign] Checkpoint for working code that slashes on beaconchain * [slash] Keep track of the total slash and total reporters reward * [slash] Dump account state before and after the slash * [slash] Satisfy Travis * [slash][state] Apply slash to the snapshot at beginning of epoch, now need to capture also the new delegates * [slash] Capture the unique new delegations since snapshot as well * [slash] Filter undelegation by epoch of double sign * [slash] Add TODO of correctness needed in slash needs on off-chain data * [rpc] Fix closure issue on shardID * [slash] Add delegator to double-sign testing script * [slash] Expand crt-validator.sh with commenting printfs and make delegation * [slash] Finish track payment of leftover slash debt after undelegation runs out * [slash] Now be explicit about error wrt delegatorSlashApply * [slash] Capture specific sanity check on slash paidoff * [slash] Track slash from undelegation piecemeal * [slash][delegation] Named slice types, .String() * [slash] Do no RLP encode twice, once is enough * [slash] Remove special case of validators own delegation * [slash] Refactor approach to slash state application * [slash] Begin expanding out Verify * [slash] Slash on snapshot delegations, not current * [slash] Fix Epoch Cmp * [slash] Third iteration on slash logic * [slash] Use full slash amount * [slash] More log, whitespace * [slash] Remove Println, add log * [slash] Remove debug Println * [slash] Add record in unit test * [slash] Build Validator snapshot, current. Fill out slash record * [slash] Need to get RLP dump of a header to use in test * [slash] Factor out double sign test constants * [slash] Factor out common for validator, stub out slash application, finish out deserialization setup * [slash] Factor out data structure creation because of var lexical scoping * [slash] Seem to have pipeline of unit test e2e executing * [slash] Add expected snitch, slash amounts * [slash] Checkpoint * [slash] Unit test correctly checks case of validator own stake which could drop below 1 ONE in slashing * [config] add double-sign testnet config (#1) Signed-off-by: Leo Chen <[email protected]> * [slash] Commit for as is code & data of current dump.json * [slash] Order of state operation not correct in test, hence bad results, thank you dlv * [slash] Add snapshot state dump * [slash] Pay off slash of validator own delegation correctly * [slash] Pay off slash debt with special case for min-self * [slash] Pass first scenario conclusively * [slash] 2% slash passes unit test for own delegation and external * [slash] Parameterize unit test to easily test .02 vs .80 slash * [slash] Handle own delegation correctly at 80% slash * [slash] Have 80% slash working with external delegator * [slash] Remove debug code from slash * [slash] Adjust Apply signature, test again for 2% slash * [slash] Factor out scenario in testing so can test 2% and 80% at same time * [slash] Correct balance deduction on plan delegation * [slash] Mock out ChainReader for TestVerify * [slash] Small surface area interface, now feedback loop for verify * [slash] Remove development json * [slash] trigger-double-sign consumes yaml * [slash] Remove dead code * [slash][test] Factor ValidatorWrapper into scenario * [slash][test] Add example from local-testing dump - caution might be off * [slash] Factor out mutation of slashDebt * [slash][test] Factor out tests so can easily load test-case from bytes * [slash] Fix payment mistake in validator own delegation wrt min-self-delgation respected * [slash] Satisfy Travis * [slash] Begin cleanup of PR * [slash] Apply slash from header to Finalize via state processor * [slash] Productionize code, Println => logs; adjust slash picked in newblock * [slash] Need pointer for rlp.Decode * [slash] ValidatorInformation use full wrapper * Fix median stake * [staking] Adjust MarshalJSON for Validator, Wrapper * Refactor offchain data commit; Make block onchain/offchain commit atomic (harmony-one#2279) * Refactor offchain data; Add epoch to ValidatorSnapshot * Make block onchain/offchain data commit atomically * [slash][committee] Set .Active to false on double sign, do not consider banned or inactive for committee assignment * [effective] VC eligible.go * [consensus] Redundant field in printf * [docker] import-ks for a dev account * [slash] Create BLS key for dockerfile and crt-validator.sh * [slash][docker] Easy deployment of double-sign testing * [docker] Have slash work as single docker command * [rpc] Fix median-stake RPC * [slash] Update webhook with default docker BLS key * [docker][slash] Fresh yaml copy for docker build, remove dev code in main.go * [slash] Remove helper binary, commented out code, change to local config * [params] Factor out test genesis value * Add shard checking to Tx-Pool & correct blacklist (harmony-one#2301) * [core] Fix blacklist & add shardID check * [staking + node + cmd] Fix blacklist & add shardID check * [slash] Adjust to PR comments part 1 * [docker] Use different throw away funded account * [docker] Create easier testing for delegation with private keys * [docker] Update yaml * [slash] Remove special case for slashing validator own delegation wrt min-self-delegate * [docker] Install nano as well * [slash] Early error if banned * [quorum] Expose earning account in decider marshal json * Revert "Refactor offchain data commit; Make block onchain/offchain commit atomic (harmony-one#2279)" This reverts commit 9ffbf68. * [slash] Add non-sanity check way to update validator * [reward] Increase percision on percentage in schedule * [slash] Adjust logs * [committee] Check eligibility of validator before doing sanity check * [slash] Update docker * [slash] Move create validator script to test * [slash] More log * [param] Make things faster * [slash][off-chain] Clear out slashes from pending in writeblockwithstate * [cross-link] Log is not error, just info * [blockchain] Not necessary to guard DeletePendingSlashingCandidates * [slash][consensus] Use plain []byte for signature b/c bls.Sign has private impl fields, rlp does not encode that * [slash][test] Use faucet as sender, assume user imported * [slash] Test setup * [slash] reserve error for real error in logs * [slash][availability] Apply availability correct, bump signing count each block * [slash][staking] Consider banned field in sanity check, pay snitch only half of what was actually slashed * [slash] Pay as much as can * [slash] use right nowAmt * [slash] Take away from rewards as well * [slash] iterate faster * [slash] Remove dev based timing * [slash] Add more log, sanity check incoming slash records, only count external for slash rate * [availability][state] Adjust signature of ValidatorWrapper wrt state, filter out for staked validators, correct availaibility measure on running counters * [availability] More log * [slash] Simply pre slash erra slashing * [slash] Remove development code * [slash] Use height from recvMsg, todo on epoch * [staking] Not necessary to touch LastEpochInCommittee in staking_verifier * [slash] Undo ds in endpoint pattern config * [slash] Add TODO and log when delegation becomes 0 b/c slash debt payment * [slash] Abstract staked validators from shard.State into type, set slash rate based BLSKey count Co-authored-by: Leo Chen <[email protected]> Co-authored-by: flicker-harmony <[email protected]> Co-authored-by: Rongjian Lan <[email protected]> Co-authored-by: Daniel Van Der Maden <[email protected]> # This is the commit message harmony-one#7: Fix last continuous crosslink logic (harmony-one#2316) * Fix last continuous crosslink logic * fix lint * Add comment # This is the commit message harmony-one#8: new profile for OSTN # This is the commit message harmony-one#9: [project] Remove leftover changes to node.sh from slashing work (harmony-one#2326)

…aconchain (harmony-one#2253) * [double-sign] Commit changes in consensus needed for double-sign * [double-sign] Leader captures when valdator double signs, broadcasts to beaconchain * [slash] Add quick iteration tool for testing double-signing * [slash] Add webhook example * [slash] Add http server for hook to trigger double sign behavior * [double-sign] Use bin/trigger-double-sign to cause a double-sign * [double-sign] Full feedback loop working * [slash] Thread through the slash records in the block proposal step * [slash] Compute the slashing rate * [double-sign] Generalize yaml malicious for many keys * [double-sign][slash] Modify data structures, verify via webhook handler * [slash][double-sign] Find one address of bls public key signer, seemingly settle on data structures * [slash] Apply to state slashing for double signing * [slash][double-sign] Checkpoint for working code that slashes on beaconchain * [slash] Keep track of the total slash and total reporters reward * [slash] Dump account state before and after the slash * [slash] Satisfy Travis * [slash][state] Apply slash to the snapshot at beginning of epoch, now need to capture also the new delegates * [slash] Capture the unique new delegations since snapshot as well * [slash] Filter undelegation by epoch of double sign * [slash] Add TODO of correctness needed in slash needs on off-chain data * [rpc] Fix closure issue on shardID * [slash] Add delegator to double-sign testing script * [slash] Expand crt-validator.sh with commenting printfs and make delegation * [slash] Finish track payment of leftover slash debt after undelegation runs out * [slash] Now be explicit about error wrt delegatorSlashApply * [slash] Capture specific sanity check on slash paidoff * [slash] Track slash from undelegation piecemeal * [slash][delegation] Named slice types, .String() * [slash] Do no RLP encode twice, once is enough * [slash] Remove special case of validators own delegation * [slash] Refactor approach to slash state application * [slash] Begin expanding out Verify * [slash] Slash on snapshot delegations, not current * [slash] Fix Epoch Cmp * [slash] Third iteration on slash logic * [slash] Use full slash amount * [slash] More log, whitespace * [slash] Remove Println, add log * [slash] Remove debug Println * [slash] Add record in unit test * [slash] Build Validator snapshot, current. Fill out slash record * [slash] Need to get RLP dump of a header to use in test * [slash] Factor out double sign test constants * [slash] Factor out common for validator, stub out slash application, finish out deserialization setup * [slash] Factor out data structure creation because of var lexical scoping * [slash] Seem to have pipeline of unit test e2e executing * [slash] Add expected snitch, slash amounts * [slash] Checkpoint * [slash] Unit test correctly checks case of validator own stake which could drop below 1 ONE in slashing * [config] add double-sign testnet config (#1) Signed-off-by: Leo Chen <[email protected]> * [slash] Commit for as is code & data of current dump.json * [slash] Order of state operation not correct in test, hence bad results, thank you dlv * [slash] Add snapshot state dump * [slash] Pay off slash of validator own delegation correctly * [slash] Pay off slash debt with special case for min-self * [slash] Pass first scenario conclusively * [slash] 2% slash passes unit test for own delegation and external * [slash] Parameterize unit test to easily test .02 vs .80 slash * [slash] Handle own delegation correctly at 80% slash * [slash] Have 80% slash working with external delegator * [slash] Remove debug code from slash * [slash] Adjust Apply signature, test again for 2% slash * [slash] Factor out scenario in testing so can test 2% and 80% at same time * [slash] Correct balance deduction on plan delegation * [slash] Mock out ChainReader for TestVerify * [slash] Small surface area interface, now feedback loop for verify * [slash] Remove development json * [slash] trigger-double-sign consumes yaml * [slash] Remove dead code * [slash][test] Factor ValidatorWrapper into scenario * [slash][test] Add example from local-testing dump - caution might be off * [slash] Factor out mutation of slashDebt * [slash][test] Factor out tests so can easily load test-case from bytes * [slash] Fix payment mistake in validator own delegation wrt min-self-delgation respected * [slash] Satisfy Travis * [slash] Begin cleanup of PR * [slash] Apply slash from header to Finalize via state processor * [slash] Productionize code, Println => logs; adjust slash picked in newblock * [slash] Need pointer for rlp.Decode * [slash] ValidatorInformation use full wrapper * Fix median stake * [staking] Adjust MarshalJSON for Validator, Wrapper * Refactor offchain data commit; Make block onchain/offchain commit atomic (harmony-one#2279) * Refactor offchain data; Add epoch to ValidatorSnapshot * Make block onchain/offchain data commit atomically * [slash][committee] Set .Active to false on double sign, do not consider banned or inactive for committee assignment * [effective] VC eligible.go * [consensus] Redundant field in printf * [docker] import-ks for a dev account * [slash] Create BLS key for dockerfile and crt-validator.sh * [slash][docker] Easy deployment of double-sign testing * [docker] Have slash work as single docker command * [rpc] Fix median-stake RPC * [slash] Update webhook with default docker BLS key * [docker][slash] Fresh yaml copy for docker build, remove dev code in main.go * [slash] Remove helper binary, commented out code, change to local config * [params] Factor out test genesis value * Add shard checking to Tx-Pool & correct blacklist (harmony-one#2301) * [core] Fix blacklist & add shardID check * [staking + node + cmd] Fix blacklist & add shardID check * [slash] Adjust to PR comments part 1 * [docker] Use different throw away funded account * [docker] Create easier testing for delegation with private keys * [docker] Update yaml * [slash] Remove special case for slashing validator own delegation wrt min-self-delegate * [docker] Install nano as well * [slash] Early error if banned * [quorum] Expose earning account in decider marshal json * Revert "Refactor offchain data commit; Make block onchain/offchain commit atomic (harmony-one#2279)" This reverts commit 9ffbf68. * [slash] Add non-sanity check way to update validator * [reward] Increase percision on percentage in schedule * [slash] Adjust logs * [committee] Check eligibility of validator before doing sanity check * [slash] Update docker * [slash] Move create validator script to test * [slash] More log * [param] Make things faster * [slash][off-chain] Clear out slashes from pending in writeblockwithstate * [cross-link] Log is not error, just info * [blockchain] Not necessary to guard DeletePendingSlashingCandidates * [slash][consensus] Use plain []byte for signature b/c bls.Sign has private impl fields, rlp does not encode that * [slash][test] Use faucet as sender, assume user imported * [slash] Test setup * [slash] reserve error for real error in logs * [slash][availability] Apply availability correct, bump signing count each block * [slash][staking] Consider banned field in sanity check, pay snitch only half of what was actually slashed * [slash] Pay as much as can * [slash] use right nowAmt * [slash] Take away from rewards as well * [slash] iterate faster * [slash] Remove dev based timing * [slash] Add more log, sanity check incoming slash records, only count external for slash rate * [availability][state] Adjust signature of ValidatorWrapper wrt state, filter out for staked validators, correct availaibility measure on running counters * [availability] More log * [slash] Simply pre slash erra slashing * [slash] Remove development code * [slash] Use height from recvMsg, todo on epoch * [staking] Not necessary to touch LastEpochInCommittee in staking_verifier * [slash] Undo ds in endpoint pattern config * [slash] Add TODO and log when delegation becomes 0 b/c slash debt payment * [slash] Abstract staked validators from shard.State into type, set slash rate based BLSKey count Co-authored-by: Leo Chen <[email protected]> Co-authored-by: flicker-harmony <[email protected]> Co-authored-by: Rongjian Lan <[email protected]> Co-authored-by: Daniel Van Der Maden <[email protected]>

stephen-tse · 2020-03-16T23:56:59Z

cmd/harmony/main.go

-		}
-		currentNode.NodeConfig.WebHooks.DoubleSigning = config
-	}
+	currentNode := node.New(myHost, currentConsensus, chainDBFactory, blacklist, true)


@LeoHChen can you comment on changing *isArchival to true at node.New(myHost, currentConsensus, chainDBFactory, blacklist, *isArchival)? cc @rlan35

https://github.com/harmony-one/harmony/pull/2514/files @fxfactorial

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[slash][availability] Apply availability correct, bump signing count …

656735b

…each block

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fxfactorial added 10 commits February 26, 2020 20:21

[slash][staking] Consider banned field in sanity check, pay snitch on…

dd7ec29

…ly half of what was actually slashed

[slash] Pay as much as can

2f66455

[slash] use right nowAmt

c3220ea

[slash] Take away from rewards as well

b766ec0

[slash] iterate faster

394ed93

[slash] Remove dev based timing

6a5d271

[slash] Add more log, sanity check incoming slash records, only count…

3f1c905

… external for slash rate

[availability][state] Adjust signature of ValidatorWrapper wrt state,…

88d9ac7

… filter out for staked validators, correct availaibility measure on running counters

[availability] More log

d347db0

[slash] Simply pre slash erra slashing

79ac651

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fxfactorial added 3 commits February 27, 2020 15:30

[slash] Remove development code

71d4a77

[slash] Use height from recvMsg, todo on epoch

955fabb

Merge remote-tracking branch 'origin/master' into double-sign

5a18235

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fxfactorial added 4 commits February 27, 2020 15:57

[staking] Not necessary to touch LastEpochInCommittee in staking_veri…

c51270e

…fier

[slash] Undo ds in endpoint pattern config

f6421b2

[slash] Add TODO and log when delegation becomes 0 b/c slash debt pay…

c91b0bf

…ment

[slash] Abstract staked validators from shard.State into type, set sl…

4c18bff

…ash rate based BLSKey count

fxfactorial changed the title ~~[wip][double-sign] Provide proof of double sign in slash record sent to beaconchain~~ [double-sign] Provide proof of double sign in slash record sent to beaconchain Feb 28, 2020

fxfactorial merged commit c4d744e into harmony-one:master Feb 28, 2020

fxfactorial deleted the double-sign branch February 28, 2020 01:30

fxfactorial restored the double-sign branch February 29, 2020 06:35

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[double-sign] Provide proof of double sign in slash record sent to beaconchain #2253

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[double-sign] Provide proof of double sign in slash record sent to beaconchain #2253

[double-sign] Provide proof of double sign in slash record sent to beaconchain #2253

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fxfactorial commented Feb 12, 2020 •

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