diff options
Diffstat (limited to 'core/utils/crypto.go')
| -rw-r--r-- | core/utils/crypto.go | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/core/utils/crypto.go b/core/utils/crypto.go index 7fd3a77..496944d 100644 --- a/core/utils/crypto.go +++ b/core/utils/crypto.go @@ -18,6 +18,7 @@ package utils import ( + "bytes" "encoding/binary" "github.com/dexon-foundation/dexon-consensus/common" @@ -122,21 +123,27 @@ func VerifyVoteSignature(vote *types.Vote) (bool, error) { func hashCRS(block *types.Block, crs common.Hash) common.Hash { hashPos := HashPosition(block.Position) + if block.Position.Round < dkgDelayRound { + return crypto.Keccak256Hash(crs[:], hashPos[:], block.ProposerID.Hash[:]) + } return crypto.Keccak256Hash(crs[:], hashPos[:]) } // VerifyCRSSignature verifies the CRS signature of types.Block. -func VerifyCRSSignature(block *types.Block, crs common.Hash) ( - bool, error) { +func VerifyCRSSignature( + block *types.Block, crs common.Hash, npks *typesDKG.NodePublicKeys) bool { hash := hashCRS(block, crs) - pubKey, err := crypto.SigToPub(hash, block.CRSSignature) - if err != nil { - return false, err + if block.Position.Round < dkgDelayRound { + return bytes.Compare(block.CRSSignature.Signature[:], hash[:]) == 0 } - if block.ProposerID != types.NewNodeID(pubKey) { - return false, nil + if npks == nil { + return false } - return true, nil + pubKey, exist := npks.PublicKeys[block.ProposerID] + if !exist { + return false + } + return pubKey.VerifySignature(hash, block.CRSSignature) } // HashPosition generates hash of a types.Position. |