The core protocol of WoopChain
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woop/drand/drand_validator_msg.go

33 lines
1.2 KiB

package drand
import (
"github.com/harmony-one/harmony/api/proto"
msg_pb "github.com/harmony-one/harmony/api/proto/message"
"github.com/harmony-one/harmony/internal/utils"
)
// Constructs the init message
func (dRand *DRand) constructCommitMessage(vrf [32]byte, proof []byte) []byte {
message := &msg_pb.Message{
ReceiverType: msg_pb.ReceiverType_LEADER,
ServiceType: msg_pb.ServiceType_DRAND,
Type: msg_pb.MessageType_DRAND_COMMIT,
Request: &msg_pb.Message_Drand{
Drand: &msg_pb.DrandRequest{},
},
}
drandMsg := message.GetDrand()
drandMsg.SenderId = dRand.nodeID
drandMsg.BlockHash = dRand.blockHash[:]
drandMsg.BlockHash = dRand.blockHash[:]
drandMsg.Payload = append(vrf[:], proof...)
// Adding the public key into payload so leader can verify the vrf
// TODO: change the curve to follow the same curve with consensus, so the public key doesn't need to be attached.
drandMsg.Payload = append(drandMsg.Payload, (*dRand.vrfPubKey).Serialize()...)
marshaledMessage, err := dRand.signAndMarshalDRandMessage(message)
if err != nil {
utils.GetLogInstance().Error("Failed to sign and marshal the commit message", "error", err)
}
return proto.ConstructDRandMessage(marshaledMessage)
}