Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

fix: aggregating signature for hello message #640

Merged
merged 1 commit into from
Aug 19, 2023
Merged

fix: aggregating signature for hello message #640

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
46 changes: 26 additions & 20 deletions sync/bundle/message/hello.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,15 +18,15 @@ const (
)

type HelloMessage struct {
PeerID peer.ID `cbor:"1,keyasint"`
Agent string `cbor:"2,keyasint"`
Moniker string `cbor:"3,keyasint"`
PublicKey *bls.PublicKey `cbor:"4,keyasint"`
Signature *bls.Signature `cbor:"5,keyasint"`
Height uint32 `cbor:"6,keyasint"`
Flags int `cbor:"7,keyasint"`
GenesisHash hash.Hash `cbor:"8,keyasint"`
BlockHash hash.Hash `cbor:"10,keyasint"`
PeerID peer.ID `cbor:"1,keyasint"`
Agent string `cbor:"2,keyasint"`
Moniker string `cbor:"3,keyasint"`
PublicKeys []*bls.PublicKey `cbor:"4,keyasint,"`
Signature *bls.Signature `cbor:"5,keyasint"`
Height uint32 `cbor:"6,keyasint"`
Flags int `cbor:"7,keyasint"`
GenesisHash hash.Hash `cbor:"8,keyasint"`
BlockHash hash.Hash `cbor:"10,keyasint"`
}

func NewHelloMessage(pid peer.ID, moniker string,
Expand All @@ -47,22 +47,15 @@ func (m *HelloMessage) SanityCheck() error {
if m.Signature == nil {
return errors.Error(errors.ErrInvalidSignature)
}
if m.PublicKey == nil {
if len(m.PublicKeys) == 0 {
return errors.Error(errors.ErrInvalidPublicKey)
}
return m.PublicKey.Verify(m.SignBytes(), m.Signature)
aggPublicKey := bls.PublicKeyAggregate(m.PublicKeys)
return aggPublicKey.Verify(m.SignBytes(), m.Signature)
}

func (m *HelloMessage) SignBytes() []byte {
return []byte(fmt.Sprintf("%s:%s:%s", m.Type(), m.Agent, m.PeerID))
}

func (m *HelloMessage) SetSignature(sig crypto.Signature) {
m.Signature = sig.(*bls.Signature)
}

func (m *HelloMessage) SetPublicKey(pub crypto.PublicKey) {
m.PublicKey = pub.(*bls.PublicKey)
return []byte(fmt.Sprintf("%s:%s:%s:%s", m.Type(), m.Agent, m.PeerID, m.GenesisHash.String()))
}

func (m *HelloMessage) Type() Type {
Expand All @@ -76,3 +69,16 @@ func (m *HelloMessage) String() string {
}
return fmt.Sprintf("{%s %v%s}", m.Moniker, m.Height, ack)
}

func (m *HelloMessage) Sign(signers ...crypto.Signer) {
signatures := make([]*bls.Signature, len(signers))
publicKeys := make([]*bls.PublicKey, len(signers))
signBytes := m.SignBytes()
for i, signer := range signers {
signatures[i] = signer.SignData(signBytes).(*bls.Signature)
publicKeys[i] = signer.PublicKey().(*bls.PublicKey)
}
aggSignature := bls.SignatureAggregate(signatures)
m.Signature = aggSignature
m.PublicKeys = publicKeys
}
19 changes: 10 additions & 9 deletions sync/bundle/message/hello_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@ package message
import (
"testing"

"github.com/pactus-project/pactus/crypto/bls"

"github.com/pactus-project/pactus/util/errors"
"github.com/pactus-project/pactus/util/testsuite"
"github.com/stretchr/testify/assert"
Expand All @@ -17,37 +19,36 @@ func TestHelloMessage(t *testing.T) {
ts := testsuite.NewTestSuite(t)

t.Run("Invalid signature", func(t *testing.T) {
signer1 := ts.RandomSigner()
signer2 := ts.RandomSigner()
signer := ts.RandomSigner()
m := NewHelloMessage(ts.RandomPeerID(), "Oscar", 100, 0, ts.RandomHash(), ts.RandomHash())
signer1.SignMsg(m)
m.SetPublicKey(signer2.PublicKey())
m.Sign(signer)
m.Signature = ts.RandomBLSSignature()

assert.Equal(t, errors.Code(m.SanityCheck()), errors.ErrInvalidSignature)
})

t.Run("Signature is nil", func(t *testing.T) {
signer := ts.RandomSigner()
m := NewHelloMessage(ts.RandomPeerID(), "Oscar", 100, 0, ts.RandomHash(), ts.RandomHash())
signer.SignMsg(m)
m.Sign(signer)
m.Signature = nil

assert.Equal(t, errors.Code(m.SanityCheck()), errors.ErrInvalidSignature)
})

t.Run("PublicKey is nil", func(t *testing.T) {
t.Run("PublicKeys are empty", func(t *testing.T) {
signer := ts.RandomSigner()
m := NewHelloMessage(ts.RandomPeerID(), "Oscar", 100, 0, ts.RandomHash(), ts.RandomHash())
signer.SignMsg(m)
m.PublicKey = nil
m.Sign(signer)
m.PublicKeys = make([]*bls.PublicKey, 0)

assert.Equal(t, errors.Code(m.SanityCheck()), errors.ErrInvalidPublicKey)
})

t.Run("Ok", func(t *testing.T) {
signer := ts.RandomSigner()
m := NewHelloMessage(ts.RandomPeerID(), "Alice", 100, 0, ts.RandomHash(), ts.RandomHash())
signer.SignMsg(m)
m.Sign(signer)

assert.NoError(t, m.SanityCheck())
assert.Contains(t, m.String(), "Alice")
Expand Down
35 changes: 0 additions & 35 deletions sync/handler_blocks_request_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,47 +2,12 @@ package sync

import (
"testing"
"time"

"github.com/pactus-project/pactus/sync/bundle/message"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)

func TestSessionTimeout(t *testing.T) {
config := testConfig()
config.SessionTimeout = 200 * time.Millisecond
td := setup(t, config)

t.Run("An unknown peers claims to have more blocks. Session should be closed after timeout", func(t *testing.T) {
signer := td.RandomSigner()
pid := td.RandomPeerID()
claimedHeight := uint32(6666)
msg := message.NewHelloMessage(pid, "Oscar", claimedHeight, message.FlagNodeNetwork,
td.state.LastBlockHash(), td.state.Genesis().Hash())
signer.SignMsg(msg)

assert.NoError(t, td.receivingNewMessage(td.sync, msg, pid))

td.shouldPublishMessageWithThisType(t, td.network, message.TypeBlocksRequest)

assert.True(t, td.sync.peerSet.HasAnyOpenSession())
time.Sleep(2 * config.SessionTimeout)
assert.False(t, td.sync.peerSet.HasAnyOpenSession())

peer := td.sync.peerSet.GetPeer(pid)
assert.Equal(t, peer.Height, claimedHeight)
assert.Equal(t, td.sync.peerSet.MaxClaimedHeight(), claimedHeight)
// TODO: This is not really good that a bad peer can manipulate the MaxCalim height
// Here is a possible solution:
// 1- A peer claims that he has more blocks
// 2- We ask him a block_request message
// 3- He doesn't respond
// 4- We close the session, marking the peer as a bad peer.
// 5- If MaxClaimedHeight is same as peer height, we set it to zero
})
}

func TestLatestBlocksRequestMessages(t *testing.T) {
config := testConfig()
config.NodeNetwork = false
Expand Down
2 changes: 1 addition & 1 deletion sync/handler_hello.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@ func (handler *helloHandler) ParseMessage(m message.Message, initiator peer.ID)
peerset.StatusCodeKnown,
msg.Moniker,
msg.Agent,
msg.PublicKey,
msg.PublicKeys,
util.IsFlagSet(msg.Flags, message.FlagNodeNetwork))
handler.peerSet.UpdateHeight(initiator, msg.Height, msg.BlockHash)

Expand Down
17 changes: 7 additions & 10 deletions sync/handler_hello_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,7 @@ func TestParsingHelloMessages(t *testing.T) {
initiator := td.RandomPeerID()
msg := message.NewHelloMessage(pid, "bad-genesis", 0, 0,
td.state.LastBlockHash(), td.state.Genesis().Hash())
signer.SignMsg(msg)
assert.True(t, msg.PublicKey.EqualsTo(signer.PublicKey()))
msg.Sign(signer)

assert.Error(t, td.receivingNewMessage(td.sync, msg, initiator))
assert.Equal(t, td.sync.peerSet.GetPeer(initiator).Status, peerset.StatusCodeBanned)
Expand All @@ -36,8 +35,7 @@ func TestParsingHelloMessages(t *testing.T) {
pid := td.RandomPeerID()
msg := message.NewHelloMessage(pid, "bad-genesis", 0, 0,
td.state.LastBlockHash(), invGenHash)
signer.SignMsg(msg)
assert.True(t, msg.PublicKey.EqualsTo(signer.PublicKey()))
msg.Sign(signer)

assert.Error(t, td.receivingNewMessage(td.sync, msg, pid))
td.shouldNotPublishMessageWithThisType(t, td.network, message.TypeHello)
Expand All @@ -51,12 +49,11 @@ func TestParsingHelloMessages(t *testing.T) {
pid := td.RandomPeerID()
msg := message.NewHelloMessage(pid, "kitty", height, message.FlagNodeNetwork,
td.state.LastBlockHash(), td.state.Genesis().Hash())
signer.SignMsg(msg)
msg.Sign(signer)

assert.NoError(t, td.receivingNewMessage(td.sync, msg, pid))

td.shouldPublishMessageWithThisType(t, td.network, message.TypeHello) // Alice key 1
td.shouldPublishMessageWithThisType(t, td.network, message.TypeHello) // Alice key 2
td.shouldPublishMessageWithThisType(t, td.network, message.TypeHello)

// Check if the peer info is updated
p := td.sync.peerSet.GetPeer(pid)
Expand All @@ -65,7 +62,7 @@ func TestParsingHelloMessages(t *testing.T) {
assert.Equal(t, p.Status, peerset.StatusCodeKnown)
assert.Equal(t, p.Agent, version.Agent())
assert.Equal(t, p.Moniker, "kitty")
assert.Contains(t, p.ConsensusKeys, *pub)
assert.Contains(t, p.ConsensusKeys, pub)
assert.Equal(t, p.PeerID, pid)
assert.Equal(t, p.Height, height)
assert.True(t, util.IsFlagSet(p.Flags, peerset.PeerFlagNodeNetwork))
Expand All @@ -78,7 +75,7 @@ func TestParsingHelloMessages(t *testing.T) {
pid := td.RandomPeerID()
msg := message.NewHelloMessage(pid, "kitty", height, message.FlagHelloAck,
td.state.LastBlockHash(), td.state.Genesis().Hash())
signer.SignMsg(msg)
msg.Sign(signer)

assert.NoError(t, td.receivingNewMessage(td.sync, msg, pid))
td.shouldNotPublishMessageWithThisType(t, td.network, message.TypeHello)
Expand All @@ -97,7 +94,7 @@ func TestParsingHelloMessages(t *testing.T) {
pid := td.RandomPeerID()
msg := message.NewHelloMessage(pid, "kitty", claimedHeight, message.FlagHelloAck,
td.state.LastBlockHash(), td.state.Genesis().Hash())
signer.SignMsg(msg)
msg.Sign(signer)

assert.NoError(t, td.receivingNewMessage(td.sync, msg, pid))
td.shouldPublishMessageWithThisType(t, td.network, message.TypeBlocksRequest)
Expand Down
6 changes: 4 additions & 2 deletions sync/mock.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@ package sync
import (
"time"

"github.com/pactus-project/pactus/crypto/bls"

"github.com/libp2p/go-libp2p/core/peer"
"github.com/pactus-project/pactus/sync/peerset"
"github.com/pactus-project/pactus/util/testsuite"
Expand All @@ -27,7 +29,7 @@ func MockingSync(ts *testsuite.TestSuite) *MockSync {
peerset.StatusCodeKnown,
"test-peer-1",
version.Agent(),
pub1,
[]*bls.PublicKey{pub1},
true)
ps.UpdateHeight(pid1, ts.RandUint32(100000), ts.RandomHash())

Expand All @@ -36,7 +38,7 @@ func MockingSync(ts *testsuite.TestSuite) *MockSync {
peerset.StatusCodeBanned,
"test-peer-2",
version.Agent(),
pub2,
[]*bls.PublicKey{pub2},
false)
ps.UpdateHeight(pid1, ts.RandUint32(100000), ts.RandomHash())

Expand Down
4 changes: 2 additions & 2 deletions sync/peerset/peer.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ type Peer struct {
Moniker string
Agent string
PeerID peer.ID
ConsensusKeys map[bls.PublicKey]bool
ConsensusKeys []*bls.PublicKey
Flags int
LastSent time.Time
LastReceived time.Time
Expand All @@ -35,7 +35,7 @@ type Peer struct {

func NewPeer(peerID peer.ID) *Peer {
return &Peer{
ConsensusKeys: make(map[bls.PublicKey]bool),
ConsensusKeys: make([]*bls.PublicKey, 0),
Status: StatusCodeUnknown,
PeerID: peerID,
ReceivedBytes: make(map[message.Type]int64),
Expand Down
4 changes: 2 additions & 2 deletions sync/peerset/peer_set.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -243,7 +243,7 @@ func (ps *PeerSet) UpdatePeerInfo(
status StatusCode,
moniker string,
agent string,
consKey *bls.PublicKey,
consKeys []*bls.PublicKey,
nodeNetwork bool,
) {
ps.lk.Lock()
Expand All @@ -253,7 +253,7 @@ func (ps *PeerSet) UpdatePeerInfo(
p.Status = status
p.Moniker = moniker
p.Agent = agent
p.ConsensusKeys[*consKey] = true
p.ConsensusKeys = consKeys

if nodeNetwork {
p.Flags = util.SetFlag(p.Flags, PeerFlagNodeNetwork)
Expand Down
25 changes: 18 additions & 7 deletions sync/peerset/peer_set_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@ import (
"testing"
"time"

"github.com/pactus-project/pactus/crypto/bls"

"github.com/libp2p/go-libp2p/core/peer"
"github.com/pactus-project/pactus/sync/bundle/message"
"github.com/pactus-project/pactus/util/testsuite"
Expand All @@ -20,12 +22,14 @@ func TestPeerSet(t *testing.T) {
pk1, _ := ts.RandomBLSKeyPair()
pk2, _ := ts.RandomBLSKeyPair()
pk3, _ := ts.RandomBLSKeyPair()
pk4, _ := ts.RandomBLSKeyPair()
pk5, _ := ts.RandomBLSKeyPair()
pid1 := peer.ID("peer1")
pid2 := peer.ID("peer2")
pid3 := peer.ID("peer3")
peerSet.UpdatePeerInfo(pid1, StatusCodeBanned, "Moniker1", "Agent1", pk1, true)
peerSet.UpdatePeerInfo(pid2, StatusCodeKnown, "Moniker2", "Agent2", pk2, false)
peerSet.UpdatePeerInfo(pid3, StatusCodeTrusty, "Moniker3", "Agent3", pk3, true)
peerSet.UpdatePeerInfo(pid1, StatusCodeBanned, "Moniker1", "Agent1", []*bls.PublicKey{pk1, pk2}, true)
peerSet.UpdatePeerInfo(pid2, StatusCodeKnown, "Moniker2", "Agent2", []*bls.PublicKey{pk3}, false)
peerSet.UpdatePeerInfo(pid3, StatusCodeTrusty, "Moniker3", "Agent3", []*bls.PublicKey{pk4, pk5}, true)

t.Run("Testing Len", func(t *testing.T) {
assert.Equal(t, 3, peerSet.Len())
Expand Down Expand Up @@ -69,6 +73,13 @@ func TestPeerSet(t *testing.T) {
assert.Equal(t, StatusCodeUnknown, p.Status)
})

t.Run("Testing PublicKeys", func(t *testing.T) {
p := peerSet.GetPeer(pid3)

assert.Contains(t, p.ConsensusKeys, pk4)
assert.Contains(t, p.ConsensusKeys, pk5)
})

t.Run("Testing counters", func(t *testing.T) {
peerSet.IncreaseInvalidBundlesCounter(pid1)
peerSet.IncreaseReceivedBundlesCounter(pid1)
Expand Down Expand Up @@ -231,7 +242,7 @@ func TestGetRandomWeightedPeer(t *testing.T) {
pid := peer.ID(fmt.Sprintf("peer_%v", i+1))
peerSet.UpdatePeerInfo(
pid, StatusCodeKnown,
fmt.Sprintf("Moniker_%v", i+1), "Agent1", pk, true)
fmt.Sprintf("Moniker_%v", i+1), "Agent1", []*bls.PublicKey{pk}, true)

for s := 0; s < 4; s++ {
peerSet.IncreaseSendSuccessCounter(pid)
Expand Down Expand Up @@ -262,11 +273,11 @@ func TestGetRandomPeerUnknown(t *testing.T) {

pk, _ := ts.RandomBLSKeyPair()
pidUnknown := peer.ID("peer_unknown")
peerSet.UpdatePeerInfo(pidUnknown, StatusCodeUnknown, "Moniker_unknown", "Agent1", pk, true)
peerSet.UpdatePeerInfo(pidUnknown, StatusCodeUnknown, "Moniker_unknown", "Agent1", []*bls.PublicKey{pk}, true)

pk, _ = ts.RandomBLSKeyPair()
pidBanned := peer.ID("peer_banned")
peerSet.UpdatePeerInfo(pidBanned, StatusCodeBanned, "Moniker_banned", "Agent1", pk, true)
peerSet.UpdatePeerInfo(pidBanned, StatusCodeBanned, "Moniker_banned", "Agent1", []*bls.PublicKey{pk}, true)

p := peerSet.GetRandomPeer()

Expand All @@ -281,7 +292,7 @@ func TestGetRandomPeerOnePeer(t *testing.T) {

pk, _ := ts.RandomBLSKeyPair()
pid := peer.ID("peer_known")
peerSet.UpdatePeerInfo(pid, StatusCodeKnown, "Moniker_known", "Agent1", pk, true)
peerSet.UpdatePeerInfo(pid, StatusCodeKnown, "Moniker_known", "Agent1", []*bls.PublicKey{pk}, true)
peerSet.IncreaseSendSuccessCounter(pid)

p := peerSet.GetRandomPeer()
Expand Down
Loading
Loading