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Merge pull request #8 from filecoin-project/fix/rand-entropy

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Add correct entropy to randomness
This commit is contained in:
Łukasz Magiera 2020-04-20 20:32:20 +02:00 committed by GitHub
commit 1515cffb5d
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 13 additions and 2 deletions
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8
checks.go
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@ -1,6 +1,7 @@
package sealing
import (
"bytes"
"context"
"golang.org/x/xerrors"
@ -98,7 +99,12 @@ func (m *Sealing) checkCommit(ctx context.Context, si SectorInfo, proof []byte,
return &ErrBadSeed{xerrors.Errorf("seed epoch doesn't match on chain info: %d != %d", pci.PreCommitEpoch+miner.PreCommitChallengeDelay, si.SeedEpoch)}
}
seed, err := m.api.ChainGetRandomness(ctx, tok, crypto.DomainSeparationTag_InteractiveSealChallengeSeed, si.SeedEpoch, nil)
buf := new(bytes.Buffer)
if err := m.maddr.MarshalCBOR(buf); err != nil {
return err
}
seed, err := m.api.ChainGetRandomness(ctx, tok, crypto.DomainSeparationTag_InteractiveSealChallengeSeed, si.SeedEpoch, buf.Bytes())
if err != nil {
return &ErrApi{xerrors.Errorf("failed to get randomness for computing seal proof: %w", err)}
}

7
states.go
View File

@ -176,7 +176,12 @@ func (m *Sealing) handleWaitSeed(ctx statemachine.Context, sector SectorInfo) er
randHeight := pci.PreCommitEpoch + miner.PreCommitChallengeDelay
err = m.events.ChainAt(func(ectx context.Context, tok TipSetToken, curH abi.ChainEpoch) error {
rand, err := m.api.ChainGetRandomness(ectx, tok, crypto.DomainSeparationTag_InteractiveSealChallengeSeed, randHeight, nil)
buf := new(bytes.Buffer)
if err := m.maddr.MarshalCBOR(buf); err != nil {
return err
}
rand, err := m.api.ChainGetRandomness(ectx, tok, crypto.DomainSeparationTag_InteractiveSealChallengeSeed, randHeight, buf.Bytes())
if err != nil {
err = xerrors.Errorf("failed to get randomness for computing seal proof: %w", err)