prysm-pulse/shared/hashutil/beacon_block.go

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package hashutil
import (
"github.com/gogo/protobuf/proto"
pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
)
// HashBeaconBlock hashes the full block without the proposer signature.
// The proposer signature is ignored in order obtain the same block hash used
// as the "block_root" property in the proposer signature data.
func HashBeaconBlock(bb *pb.BeaconBlock) ([32]byte, error) {
// Ignore the proposer signature by temporarily deleting it.
sig := bb.Signature
bb.Signature = nil
defer func() { bb.Signature = sig }()
// TODO(#1253): Use SSZ instead of proto marshal.
data, err := proto.Marshal(bb)
if err != nil {
return [32]byte{}, err
}
return Hash(data), nil
}