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Fix lookback for worker key when computing ticket

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We need to compute the ticket based on our worker key from the lookback epoch,
not the current epoch.
This commit is contained in:
Steven Allen 2020-10-21 15:47:52 -07:00
parent 6fc8550c19
commit defeba5576
1 changed files with 7 additions and 11 deletions
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18
miner/miner.go
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@ -386,7 +386,7 @@ func (m *Miner) mineOne(ctx context.Context, base *MiningBase) (*types.BlockMsg,
rbase = bvals[len(bvals)-1]
}
ticket, err := m.computeTicket(ctx, &rbase, base)
ticket, err := m.computeTicket(ctx, &rbase, base, mbi)
if err != nil {
return nil, xerrors.Errorf("scratching ticket failed: %w", err)
}
@ -456,16 +456,7 @@ func (m *Miner) mineOne(ctx context.Context, base *MiningBase) (*types.BlockMsg,
return b, nil
}
func (m *Miner) computeTicket(ctx context.Context, brand *types.BeaconEntry, base *MiningBase) (*types.Ticket, error) {
mi, err := m.api.StateMinerInfo(ctx, m.address, types.EmptyTSK)
if err != nil {
return nil, err
}
worker, err := m.api.StateAccountKey(ctx, mi.Worker, types.EmptyTSK)
if err != nil {
return nil, err
}
func (m *Miner) computeTicket(ctx context.Context, brand *types.BeaconEntry, base *MiningBase, mbi *api.MiningBaseInfo) (*types.Ticket, error) {
buf := new(bytes.Buffer)
if err := m.address.MarshalCBOR(buf); err != nil {
return nil, xerrors.Errorf("failed to marshal address to cbor: %w", err)
@ -476,6 +467,11 @@ func (m *Miner) computeTicket(ctx context.Context, brand *types.BeaconEntry, bas
buf.Write(base.TipSet.MinTicket().VRFProof)
}
worker, err := m.api.StateAccountKey(ctx, mbi.WorkerKey, types.EmptyTSK)
if err != nil {
return nil, err
}
input, err := store.DrawRandomness(brand.Data, crypto.DomainSeparationTag_TicketProduction, round-build.TicketRandomnessLookback, buf.Bytes())
if err != nil {
return nil, err