Merge pull request #24 from QuilibriumNetwork/PROTO-57

PROTO-57 - Peer Version Enforcement

node/consensus/ceremony/broadcast_messaging.go

@@ -4,10 +4,13 @@ import (
 	"bytes"
 	"crypto"
 	"crypto/rand"
+	"encoding/binary"
 	"strings"
 	"time"
 
 	"github.com/iden3/go-iden3-crypto/poseidon"
+	pcrypto "github.com/libp2p/go-libp2p/core/crypto"
+	"github.com/libp2p/go-libp2p/core/peer"
 	"github.com/pkg/errors"
 	"go.uber.org/zap"
 	"golang.org/x/crypto/sha3"
@@ -157,10 +160,6 @@ func (e *CeremonyDataClockConsensusEngine) handleCeremonyPeerListAnnounce(
 
 	e.peerMapMx.Lock()
 	for _, p := range announce.PeerList {
-		if p.Timestamp < time.Now().UnixMilli()-PEER_INFO_TTL {
-			continue
-		}
-
 		if _, ok := e.uncooperativePeersMap[string(p.PeerId)]; ok {
 			continue
 		}
@@ -169,12 +168,71 @@ func (e *CeremonyDataClockConsensusEngine) handleCeremonyPeerListAnnounce(
 			continue
 		}
 
+		if p.PublicKey == nil || p.Signature == nil || p.Version == nil {
+			if time.Now().After(consensus.GetMinimumVersionCutoff()) {
+				if bytes.Equal(p.PeerId, peerID) {
+					e.logger.Warn(
+						"peer provided outdated version, penalizing app score",
+						zap.Binary("peer_id", p.PeerId),
+					)
+					e.pubSub.SetPeerScore(p.PeerId, -100)
+				}
+				continue
+			}
+		}
+
+		if p.PublicKey != nil && p.Signature != nil && p.Version != nil {
+			key, err := pcrypto.UnmarshalEd448PublicKey(p.PublicKey)
+			if err != nil {
+				e.logger.Error(
+					"peer announcement contained invalid pubkey",
+					zap.Binary("public_key", p.PublicKey),
+				)
+				continue
+			}
+
+			if !(peer.ID(p.PeerId)).MatchesPublicKey(key) {
+				e.logger.Error(
+					"peer announcement peer id does not match pubkey",
+					zap.Binary("peer_id", p.PeerId),
+					zap.Binary("public_key", p.PublicKey),
+				)
+				continue
+			}
+
+			msg := binary.BigEndian.AppendUint64([]byte{}, p.MaxFrame)
+			msg = append(msg, p.Version...)
+			msg = binary.BigEndian.AppendUint64(msg, uint64(p.Timestamp))
+			b, err := key.Verify(msg, p.Signature)
+			if err != nil || !b {
+				e.logger.Error(
+					"peer provided invalid signature",
+					zap.Binary("msg", msg),
+					zap.Binary("public_key", p.PublicKey),
+					zap.Binary("signature", p.Signature),
+				)
+				continue
+			}
+
+			if bytes.Compare(p.Version, consensus.GetMinimumVersion()) < 0 &&
+				time.Now().After(consensus.GetMinimumVersionCutoff()) {
+				e.logger.Warn(
+					"peer provided outdated version, penalizing app score",
+					zap.Binary("peer_id", p.PeerId),
+				)
+				e.pubSub.SetPeerScore(p.PeerId, -100)
+				continue
+			}
+		}
+
 		multiaddr := p.Multiaddr
 		if bytes.Equal(p.PeerId, peerID) || p.Multiaddr == "" {
 			// we have to fetch self-reported peer info
 			multiaddr = e.pubSub.GetMultiaddrOfPeer(peerID)
 		}
 
+		e.pubSub.SetPeerScore(p.PeerId, 10)
+
 		e.peerMap[string(p.PeerId)] = &peerInfo{
 			peerId:    p.PeerId,
 			multiaddr: multiaddr,
@@ -182,6 +240,9 @@ func (e *CeremonyDataClockConsensusEngine) handleCeremonyPeerListAnnounce(
 			direct:    bytes.Equal(p.PeerId, peerID),
 			lastSeen:  time.Now().Unix(),
 			timestamp: p.Timestamp,
+			version:   p.Version,
+			signature: p.Signature,
+			publicKey: p.PublicKey,
 		}
 	}
 	e.peerMapMx.Unlock()

node/consensus/ceremony/ceremony_data_clock_consensus_engine.go

@@ -2,6 +2,7 @@ package ceremony
 
 import (
 	"crypto"
+	"encoding/binary"
 	"math/big"
 	"sync"
 	"time"
@@ -33,6 +34,7 @@ const (
 	SyncStatusNotSyncing = iota
 	SyncStatusAwaitingResponse
 	SyncStatusSynchronizing
+	SyncStatusFailed
 )
 
 type peerInfo struct {
@@ -41,6 +43,9 @@ type peerInfo struct {
 	maxFrame  uint64
 	timestamp int64
 	lastSeen  int64
+	version   []byte
+	signature []byte
+	publicKey []byte
 	direct    bool
 }
 
@@ -81,6 +86,7 @@ type CeremonyDataClockConsensusEngine struct {
 	parentSelector                 []byte
 	syncingStatus                  SyncStatusType
 	syncingTarget                  []byte
+	previousHead                   *protobufs.ClockFrame
 	currentDistance                *big.Int
 	engineMx                       sync.Mutex
 	dependencyMapMx                sync.Mutex
@@ -248,25 +254,36 @@ func (e *CeremonyDataClockConsensusEngine) Start(
 				PeerList: []*protobufs.CeremonyPeer{},
 			}
 
+			timestamp := time.Now().UnixMilli()
+			msg := binary.BigEndian.AppendUint64([]byte{}, e.frame)
+			msg = append(msg, consensus.GetVersion()...)
+			msg = binary.BigEndian.AppendUint64(msg, uint64(timestamp))
+			sig, err := e.pubSub.SignMessage(msg)
+			if err != nil {
+				panic(err)
+			}
+
 			e.peerMapMx.Lock()
 			e.peerMap[string(e.pubSub.GetPeerID())] = &peerInfo{
 				peerId:    e.pubSub.GetPeerID(),
 				multiaddr: "",
 				maxFrame:  e.frame,
-				timestamp: time.Now().UnixMilli(),
+				version:   consensus.GetVersion(),
+				signature: sig,
+				publicKey: e.pubSub.GetPublicKey(),
+				timestamp: timestamp,
 			}
 			deletes := []*peerInfo{}
 			for _, v := range e.peerMap {
-				if v.timestamp > time.Now().UnixMilli()-PEER_INFO_TTL {
 				list.PeerList = append(list.PeerList, &protobufs.CeremonyPeer{
 					PeerId:    v.peerId,
 					Multiaddr: v.multiaddr,
 					MaxFrame:  v.maxFrame,
 					Timestamp: v.timestamp,
+					Version:   v.version,
+					Signature: v.signature,
+					PublicKey: v.publicKey,
 				})
-				} else {
-					deletes = append(deletes, v)
-				}
 			}
 			for _, v := range e.uncooperativePeersMap {
 				if v.timestamp <= time.Now().UnixMilli()-UNCOOPERATIVE_PEER_INFO_TTL {
@@ -274,7 +291,6 @@ func (e *CeremonyDataClockConsensusEngine) Start(
 				}
 			}
 			for _, v := range deletes {
-				delete(e.peerMap, string(v.peerId))
 				delete(e.uncooperativePeersMap, string(v.peerId))
 			}
 			e.peerMapMx.Unlock()
@@ -412,6 +428,9 @@ func (
 			Multiaddrs: []string{v.multiaddr},
 			MaxFrame:   v.maxFrame,
 			Timestamp:  v.timestamp,
+			Version:    v.version,
+			Signature:  v.signature,
+			PublicKey:  v.publicKey,
 		})
 	}
 	for _, v := range e.uncooperativePeersMap {
@@ -422,6 +441,9 @@ func (
 				Multiaddrs: []string{v.multiaddr},
 				MaxFrame:   v.maxFrame,
 				Timestamp:  v.timestamp,
+				Version:    v.version,
+				Signature:  v.signature,
+				PublicKey:  v.publicKey,
 			},
 		)
 	}

node/consensus/ceremony/consensus_frames.go

@@ -900,8 +900,8 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 	client := protobufs.NewCeremonyServiceClient(cc)
 
 	from := latest.FrameNumber
-	if from == 0 {
+	if from <= 1 {
-		from = 1
+		from = 2
 	}
 
 	if maxFrame-from > 32 {
@@ -909,7 +909,7 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 		// respond with a valid answer, optimistically continue from this
 		// frame, if we hit a fault we'll mark them as uncooperative and move
 		// on
-		from = 1
+		from = 2
 		s, err := client.GetCompressedSyncFrames(
 			context.Background(),
 			&protobufs.ClockFramesRequest{
@@ -941,6 +941,7 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 			)
 			var next *protobufs.ClockFrame
 			if next, err = e.decompressAndStoreCandidates(
+				peerId,
 				syncMsg,
 				e.logger.Info,
 			); err != nil && !errors.Is(err, ErrNoNewFrames) {
@@ -958,6 +959,7 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 				}
 
 				e.syncingTarget = nil
+				e.syncingStatus = SyncStatusFailed
 				return currentLatest, errors.Wrap(err, "reverse optimistic sync")
 			}
 			if next != nil {
@@ -970,6 +972,7 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 			}
 			e.logger.Error("error while receiving sync", zap.Error(err))
 			e.syncingTarget = nil
+			e.syncingStatus = SyncStatusFailed
 			return latest, errors.Wrap(err, "reverse optimistic sync")
 		}
 	}
@@ -981,7 +984,7 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 			context.Background(),
 			&protobufs.ClockFramesRequest{
 				Filter:          e.filter,
-				FromFrameNumber: from,
+				FromFrameNumber: from - 1,
 				ToFrameNumber:   maxFrame,
 			},
 			grpc.MaxCallRecvMsgSize(600*1024*1024),
@@ -995,6 +998,7 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 			e.uncooperativePeersMap[string(peerId)] = e.peerMap[string(peerId)]
 			delete(e.peerMap, string(peerId))
 			e.peerMapMx.Unlock()
+			e.syncingStatus = SyncStatusFailed
 
 			if err := cc.Close(); err != nil {
 				e.logger.Error("error while closing connection", zap.Error(err))
@@ -1011,6 +1015,7 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 					zap.Int("proofs", len(syncMsg.Proofs)),
 				)
 				if _, err = e.decompressAndStoreCandidates(
+					peerId,
 					syncMsg,
 					e.logger.Debug,
 				); err != nil && !errors.Is(err, ErrNoNewFrames) {
@@ -1018,7 +1023,8 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 						"could not decompress and store candidate",
 						zap.Error(err),
 					)
-
+					e.syncingTarget = nil
+					e.syncingStatus = SyncStatusFailed
 					if err := cc.Close(); err != nil {
 						e.logger.Error("error while closing connection", zap.Error(err))
 					}
@@ -1026,6 +1032,8 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 				}
 			}
 			if err != nil && err != io.EOF && !errors.Is(err, ErrNoNewFrames) {
+				e.syncingTarget = nil
+				e.syncingStatus = SyncStatusFailed
 				e.logger.Error("error while receiving sync", zap.Error(err))
 				if err := cc.Close(); err != nil {
 					e.logger.Error("error while closing connection", zap.Error(err))
@@ -1037,6 +1045,9 @@ func (e *CeremonyDataClockConsensusEngine) reverseOptimisticSync(
 		if err := cc.Close(); err != nil {
 			e.logger.Error("error while closing connection", zap.Error(err))
 		}
+
+		e.syncingTarget = nil
+		e.syncingStatus = SyncStatusNotSyncing
 	}()
 
 	return latest, nil
@@ -1070,7 +1081,6 @@ func (e *CeremonyDataClockConsensusEngine) sync(
 	}
 
 	if maxFrame > from {
-		from = 1
 		s, err := client.GetCompressedSyncFrames(
 			context.Background(),
 			&protobufs.ClockFramesRequest{
@@ -1101,6 +1111,7 @@ func (e *CeremonyDataClockConsensusEngine) sync(
 			)
 			var next *protobufs.ClockFrame
 			if next, err = e.decompressAndStoreCandidates(
+				peerId,
 				syncMsg,
 				e.logger.Info,
 			); err != nil && !errors.Is(err, ErrNoNewFrames) {
@@ -1147,6 +1158,10 @@ func (e *CeremonyDataClockConsensusEngine) collect(
 		e.logger.Info("collecting vdf proofs")
 
 		latest := currentFramePublished
+		if e.syncingStatus == SyncStatusFailed {
+			latest = e.previousHead
+			e.syncingStatus = SyncStatusNotSyncing
+		}
 		maxFrame := uint64(0)
 		var peerId []byte
 		peerId, maxFrame, err := e.GetMostAheadPeer()
@@ -1162,6 +1177,7 @@ func (e *CeremonyDataClockConsensusEngine) collect(
 			)
 
 			e.syncingTarget = peerId
+			e.previousHead = latest
 			latest, err = e.reverseOptimisticSync(latest, maxFrame, peerId)
 		} else if maxFrame > latest.FrameNumber {
 			latest, err = e.sync(latest, maxFrame, peerId)

node/consensus/ceremony/peer_messaging.go

@@ -78,6 +78,7 @@ func (e *CeremonyDataClockConsensusEngine) GetCompressedSyncFrames(
 	)
 
 	from := request.FromFrameNumber
+	parent := request.ParentSelector
 
 	frame, _, err := e.clockStore.GetDataClockFrame(
 		request.Filter,
@@ -91,6 +92,8 @@ func (e *CeremonyDataClockConsensusEngine) GetCompressedSyncFrames(
 			)
 			return errors.Wrap(err, "get compressed sync frames")
 		} else {
+			frames, err := e.clockStore.GetCandidateDataClockFrames(e.filter, from)
+			if err != nil || len(frames) == 0 {
 				e.logger.Debug(
 					"peer asked for undiscovered frame",
 					zap.Uint64("frame_number", request.FromFrameNumber),
@@ -109,9 +112,11 @@ func (e *CeremonyDataClockConsensusEngine) GetCompressedSyncFrames(
 
 				return nil
 			}
+
+			parent = nil
+		}
 	}
 
-	parent := request.ParentSelector
 	if parent != nil {
 		if !bytes.Equal(frame.ParentSelector, parent) {
 			e.logger.Info(
@@ -151,6 +156,12 @@ func (e *CeremonyDataClockConsensusEngine) GetCompressedSyncFrames(
 	max := e.frame
 	to := request.ToFrameNumber
 
+	// We need to slightly rewind, to compensate for unconfirmed frame heads on a
+	// given branch
+	if from >= 2 {
+		from--
+	}
+
 	for {
 		if to == 0 || to-from > 32 {
 			if max > from+31 {
@@ -189,6 +200,7 @@ func (e *CeremonyDataClockConsensusEngine) GetCompressedSyncFrames(
 }
 
 func (e *CeremonyDataClockConsensusEngine) decompressAndStoreCandidates(
+	peerId []byte,
 	syncMsg *protobufs.CeremonyCompressedSync,
 	loggerFunc func(msg string, fields ...zapcore.Field),
 ) (*protobufs.ClockFrame, error) {
@@ -196,9 +208,13 @@ func (e *CeremonyDataClockConsensusEngine) decompressAndStoreCandidates(
 		return nil, ErrNoNewFrames
 	}
 
-	if len(syncMsg.TruncatedClockFrames) != int(
+	if len(syncMsg.TruncatedClockFrames) < int(
 		syncMsg.ToFrameNumber-syncMsg.FromFrameNumber+1,
 	) {
+		e.peerMapMx.Lock()
+		e.uncooperativePeersMap[string(peerId)] = e.peerMap[string(peerId)]
+		delete(e.peerMap, string(peerId))
+		e.peerMapMx.Unlock()
 		return nil, errors.New("invalid continuity for compressed sync response")
 	}
 

node/consensus/consensus_engine.go

@@ -2,6 +2,7 @@ package consensus
 
 import (
 	"crypto"
+	"time"
 
 	"source.quilibrium.com/quilibrium/monorepo/node/config"
 	"source.quilibrium.com/quilibrium/monorepo/node/execution"
@@ -49,3 +50,15 @@ type DataConsensusEngine interface {
 	IsInProverTrie(key []byte) bool
 	GetPeerInfo() *protobufs.PeerInfoResponse
 }
+
+func GetMinimumVersionCutoff() time.Time {
+	return time.Date(2023, time.November, 3, 0, 0, 0, 0, time.UTC)
+}
+
+func GetMinimumVersion() []byte {
+	return []byte{0x01, 0x01, 0x05}
+}
+
+func GetVersion() []byte {
+	return []byte{0x01, 0x01, 0x05}
+}

node/main.go

@@ -231,5 +231,5 @@ func printLogo() {
 
 func printVersion() {
 	fmt.Println(" ")
-	fmt.Println("                         Quilibrium Node - v1.1.4 – Dawn")
+	fmt.Println("                         Quilibrium Node - v1.1.5 – Dawn")
 }

node/p2p/blossomsub.go

@@ -39,6 +39,9 @@ type BlossomSub struct {
 	peerID      peer.ID
 	bitmaskMap  map[string]*blossomsub.Bitmask
 	h           host.Host
+	signKey     crypto.PrivKey
+	peerScore   map[string]int64
+	peerScoreMx sync.Mutex
 }
 
 var _ PubSub = (*BlossomSub)(nil)
@@ -63,13 +66,14 @@ func NewBlossomSub(
 		libp2p.ListenAddrStrings(p2pConfig.ListenMultiaddr),
 	}
 
+	var privKey crypto.PrivKey
 	if p2pConfig.PeerPrivKey != "" {
 		peerPrivKey, err := hex.DecodeString(p2pConfig.PeerPrivKey)
 		if err != nil {
 			panic(errors.Wrap(err, "error unmarshaling peerkey"))
 		}
 
-		privKey, err := crypto.UnmarshalEd448PrivateKey(peerPrivKey)
+		privKey, err = crypto.UnmarshalEd448PrivateKey(peerPrivKey)
 		if err != nil {
 			panic(errors.Wrap(err, "error unmarshaling peerkey"))
 		}
@@ -77,6 +81,14 @@ func NewBlossomSub(
 		opts = append(opts, libp2p.Identity(privKey))
 	}
 
+	bs := &BlossomSub{
+		ctx:        ctx,
+		logger:     logger,
+		bitmaskMap: make(map[string]*blossomsub.Bitmask),
+		signKey:    privKey,
+		peerScore:  make(map[string]int64),
+	}
+
 	h, err := libp2p.New(opts...)
 	if err != nil {
 		panic(errors.Wrap(err, "error constructing p2p"))
@@ -109,6 +121,31 @@ func NewBlossomSub(
 	if tracer != nil {
 		blossomOpts = append(blossomOpts, blossomsub.WithEventTracer(tracer))
 	}
+	blossomOpts = append(blossomOpts, blossomsub.WithPeerScore(
+		&blossomsub.PeerScoreParams{
+			SkipAtomicValidation:        false,
+			BitmaskScoreCap:             0,
+			IPColocationFactorWeight:    -1,
+			IPColocationFactorThreshold: 6,
+			BehaviourPenaltyWeight:      -1,
+			BehaviourPenaltyThreshold:   100,
+			BehaviourPenaltyDecay:       .5,
+			DecayInterval:               time.Minute,
+			DecayToZero:                 .1,
+			RetainScore:                 5 * time.Minute,
+			AppSpecificScore: func(p peer.ID) float64 {
+				return float64(bs.GetPeerScore([]byte(p)))
+			},
+			AppSpecificWeight: 10.0,
+		},
+		&blossomsub.PeerScoreThresholds{
+			SkipAtomicValidation:        false,
+			GossipThreshold:             -100,
+			PublishThreshold:            -100,
+			GraylistThreshold:           -100,
+			AcceptPXThreshold:           1,
+			OpportunisticGraftThreshold: 2,
+		}))
 
 	params := mergeDefaults(p2pConfig)
 	rt := blossomsub.NewBlossomSubRouter(h, params)
@@ -118,15 +155,12 @@ func NewBlossomSub(
 	}
 
 	peerID := h.ID()
+	bs.ps = ps
+	bs.peerID = peerID
+	bs.h = h
+	bs.signKey = privKey
 
-	return &BlossomSub{
+	return bs
-		ps,
-		ctx,
-		logger,
-		peerID,
-		make(map[string]*blossomsub.Bitmask),
-		h,
-	}
 }
 
 func (b *BlossomSub) PublishToBitmask(bitmask []byte, data []byte) error {
@@ -318,6 +352,19 @@ func initDHT(
 	return kademliaDHT
 }
 
+func (b *BlossomSub) GetPeerScore(peerId []byte) int64 {
+	b.peerScoreMx.Lock()
+	score := b.peerScore[string(peerId)]
+	b.peerScoreMx.Unlock()
+	return score
+}
+
+func (b *BlossomSub) SetPeerScore(peerId []byte, score int64) {
+	b.peerScoreMx.Lock()
+	b.peerScore[string(peerId)] = score
+	b.peerScoreMx.Unlock()
+}
+
 func (b *BlossomSub) GetBitmaskPeers() map[string][]string {
 	peers := map[string][]string{}
 
@@ -433,6 +480,16 @@ func (b *BlossomSub) GetDirectChannel(key []byte) (
 	return dialCtx, nil
 }
 
+func (b *BlossomSub) GetPublicKey() []byte {
+	pub, _ := b.signKey.GetPublic().Raw()
+	return pub
+}
+
+func (b *BlossomSub) SignMessage(msg []byte) ([]byte, error) {
+	sig, err := b.signKey.Sign(msg)
+	return sig, errors.Wrap(err, "sign message")
+}
+
 func discoverPeers(
 	p2pConfig *config.P2PConfig,
 	ctx context.Context,

node/p2p/pubsub.go

@@ -23,4 +23,8 @@ type PubSub interface {
 	) error
 	GetDirectChannel(peerId []byte) (*grpc.ClientConn, error)
 	GetNetworkInfo() *protobufs.NetworkInfoResponse
+	SignMessage(msg []byte) ([]byte, error)
+	GetPublicKey() []byte
+	GetPeerScore(peerId []byte) int64
+	SetPeerScore(peerId []byte, score int64)
 }

node/protobufs/ceremony.pb.go

@@ -1028,6 +1028,9 @@ type CeremonyPeer struct {
 	Multiaddr string `protobuf:"bytes,2,opt,name=multiaddr,proto3" json:"multiaddr,omitempty"`
 	MaxFrame  uint64 `protobuf:"varint,3,opt,name=max_frame,json=maxFrame,proto3" json:"max_frame,omitempty"`
 	Timestamp int64  `protobuf:"varint,4,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	Version   []byte `protobuf:"bytes,5,opt,name=version,proto3" json:"version,omitempty"`
+	Signature []byte `protobuf:"bytes,6,opt,name=signature,proto3" json:"signature,omitempty"`
+	PublicKey []byte `protobuf:"bytes,7,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty"`
 }
 
 func (x *CeremonyPeer) Reset() {
@@ -1090,6 +1093,27 @@ func (x *CeremonyPeer) GetTimestamp() int64 {
 	return 0
 }
 
+func (x *CeremonyPeer) GetVersion() []byte {
+	if x != nil {
+		return x.Version
+	}
+	return nil
+}
+
+func (x *CeremonyPeer) GetSignature() []byte {
+	if x != nil {
+		return x.Signature
+	}
+	return nil
+}
+
+func (x *CeremonyPeer) GetPublicKey() []byte {
+	if x != nil {
+		return x.PublicKey
+	}
+	return nil
+}
+
 type CeremonyCompressedSync struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1646,7 +1670,7 @@ var file_ceremony_proto_rawDesc = []byte{
 	0x03, 0x28, 0x0b, 0x32, 0x29, 0x2e, 0x71, 0x75, 0x69, 0x6c, 0x69, 0x62, 0x72, 0x69, 0x75, 0x6d,
 	0x2e, 0x6e, 0x6f, 0x64, 0x65, 0x2e, 0x63, 0x65, 0x72, 0x65, 0x6d, 0x6f, 0x6e, 0x79, 0x2e, 0x70,
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 }
 
 var (

node/protobufs/ceremony.proto

@@ -136,6 +136,9 @@ message CeremonyPeer {
   string multiaddr = 2;
   uint64 max_frame = 3;
   int64 timestamp = 4;
+  bytes version = 5;
+  bytes signature = 6;
+  bytes public_key = 7;
 }
 
 message CeremonyCompressedSync {

node/protobufs/node.pb.go

@@ -333,6 +333,9 @@ type PeerInfo struct {
 	Multiaddrs []string `protobuf:"bytes,2,rep,name=multiaddrs,proto3" json:"multiaddrs,omitempty"`
 	MaxFrame   uint64   `protobuf:"varint,3,opt,name=max_frame,json=maxFrame,proto3" json:"max_frame,omitempty"`
 	Timestamp  int64    `protobuf:"varint,4,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	Version    []byte   `protobuf:"bytes,5,opt,name=version,proto3" json:"version,omitempty"`
+	Signature  []byte   `protobuf:"bytes,6,opt,name=signature,proto3" json:"signature,omitempty"`
+	PublicKey  []byte   `protobuf:"bytes,7,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty"`
 }
 
 func (x *PeerInfo) Reset() {
@@ -395,6 +398,27 @@ func (x *PeerInfo) GetTimestamp() int64 {
 	return 0
 }
 
+func (x *PeerInfo) GetVersion() []byte {
+	if x != nil {
+		return x.Version
+	}
+	return nil
+}
+
+func (x *PeerInfo) GetSignature() []byte {
+	if x != nil {
+		return x.Signature
+	}
+	return nil
+}
+
+func (x *PeerInfo) GetPublicKey() []byte {
+	if x != nil {
+		return x.PublicKey
+	}
+	return nil
+}
+
 type PeerInfoResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -706,88 +730,94 @@ var file_node_proto_rawDesc = []byte{
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 }
 
 var (

node/protobufs/node.proto

@@ -36,6 +36,9 @@ message PeerInfo {
   repeated string multiaddrs = 2;
   uint64 max_frame = 3;
   int64 timestamp = 4;
+  bytes version = 5;
+  bytes signature = 6;
+  bytes public_key = 7;
 }
 
 message PeerInfoResponse {

node/store/clock.go

@@ -1329,7 +1329,6 @@ func (p *PebbleClockStore) GetCompressedDataClockFrames(
 		if frame.FrameNumber == 0 {
 			continue
 		}
-
 		for i := 0; i < len(frame.Input[516:])/74; i++ {
 			aggregateCommit := frame.Input[516+(i*74) : 516+((i+1)*74)]
 
@@ -1399,7 +1398,6 @@ func (p *PebbleClockStore) GetCompressedDataClockFrames(
 			if err := proto.Unmarshal(value, frame); err != nil {
 				return nil, errors.Wrap(err, "get compressed data clock frames")
 			}
-
 			candidates = append(candidates, frame)
 		}