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