// Run starts the simulation on the simulation-side
func (e *Simulation) Run(config *onet.SimulationConfig) error {
msg := []byte(e.Message)
size := config.Tree.Size()
log.Lvl2("Size is:", size, "rounds:", e.Rounds)
for round := 0; round < e.Rounds; round++ {
log.Lvl1("Starting round", round, "with message", string(msg))
round := monitor.NewTimeMeasure("round")
p, err := config.Overlay.CreateProtocolOnet("NaiveTree", config.Tree)
if err != nil {
log.Error("Quitting the simulation....", err)
return err
}
pi := p.(*Protocol)
pi.Message = msg
pi.verifySignature = e.Checking
done := make(chan bool)
pi.TreeNodeInstance.OnDoneCallback(func() bool {
done <- true
return true
})
err = pi.Start()
if err != nil {
log.Error("Quitting the simulation....", err)
return err
}
<-done
round.Record()
}
return nil
}
// Run initiates a RandHound simulation
func (rhs *RHSimulation) Run(config *onet.SimulationConfig) error {
randM := monitor.NewTimeMeasure("tgen-randhound")
bandW := monitor.NewCounterIOMeasure("bw-randhound", config.Conode)
client, err := config.Overlay.CreateProtocolOnet("RandHound", config.Tree)
if err != nil {
return err
}
rh, _ := client.(*RandHound)
err = rh.Setup(rhs.Hosts, rhs.Faulty, rhs.Groups, rhs.Purpose)
if err != nil {
return err
}
if err := rh.StartProtocol(); err != nil {
log.Error("Error while starting protcol:", err)
}
select {
case <-rh.Done:
log.Lvlf1("RandHound - done")
random, transcript, err := rh.Random()
if err != nil {
return err
}
randM.Record()
bandW.Record()
log.Lvlf1("RandHound - collective randomness: ok")
verifyM := monitor.NewTimeMeasure("tver-randhound")
err = rh.Verify(rh.Suite(), random, transcript)
if err != nil {
return err
}
verifyM.Record()
log.Lvlf1("RandHound - verification: ok")
//case <-time.After(time.Second * time.Duration(rhs.Hosts) * 5):
//log.Print("RandHound - time out")
}
return nil
}
// sendAndMeasureViewChange is a method that creates the viewchange request,
// broadcast it and measures the time it takes to accept it.
func (bz *ByzCoin) sendAndMeasureViewchange() {
log.Lvl3(bz.Name(), "Created viewchange measure")
bz.vcMeasure = monitor.NewTimeMeasure("viewchange")
vc := newViewChange()
var err error
for _, n := range bz.Tree().List() {
// don't send to ourself
if n.ID.Equal(bz.TreeNode().ID) {
continue
}
err = bz.SendTo(n, vc)
if err != nil {
log.Error(bz.Name(), "Error sending view change", err)
}
}
}
// Run implements onet.Simulation interface
func (e *Simulation) Run(onetConf *onet.SimulationConfig) error {
log.Lvl2("Naive Tree Simulation starting with: Rounds=", e.Rounds)
server := NewNtreeServer(e.Blocksize)
for round := 0; round < e.Rounds; round++ {
client := byzcoin.NewClient(server)
err := client.StartClientSimulation(blockchain.GetBlockDir(), e.Blocksize)
if err != nil {
log.Error("ClientSimulation:", err)
}
log.Lvl1("Starting round", round)
// create an empty node
node := onetConf.Overlay.NewTreeNodeInstanceFromProtoName(onetConf.Tree, "ByzCoinNtree")
// instantiate a byzcoin protocol
rComplete := monitor.NewTimeMeasure("round")
pi, err := server.Instantiate(node)
if err != nil {
return err
}
onetConf.Overlay.RegisterProtocolInstance(pi)
nt := pi.(*Ntree)
// Register when the protocol is finished (all the nodes have finished)
done := make(chan bool)
nt.RegisterOnDone(func(sig *NtreeSignature) {
rComplete.Record()
log.Lvl3("Done")
done <- true
})
go func() {
if err := nt.Start(); err != nil {
log.Error("Couldn't start ntree protocol:", err)
}
}()
// wait for the end
<-done
log.Lvl3("Round", round, "finished")
}
return nil
}
// Run is used on the destination machines and runs a number of
// rounds
func (e *simulation) Run(config *onet.SimulationConfig) error {
size := config.Tree.Size()
log.Lvl2("Size is:", size, "rounds:", e.Rounds)
for round := 0; round < e.Rounds; round++ {
log.Lvl1("Starting round", round)
round := monitor.NewTimeMeasure("round")
p, err := config.Overlay.CreateProtocolOnet("Count", config.Tree)
if err != nil {
return err
}
go p.Start()
children := <-p.(*ProtocolCount).Count
round.Record()
if children != size {
return errors.New("Didn't get " + strconv.Itoa(size) +
" children")
}
}
return nil
}
// Run initiates a JVSS simulation
func (jvs *Simulation) Run(config *onet.SimulationConfig) error {
size := config.Tree.Size()
msg := []byte("Test message for JVSS simulation")
log.Lvl1("Size:", size, "rounds:", jvs.Rounds)
p, err := config.Overlay.CreateProtocolOnet("JVSS", config.Tree)
if err != nil {
return err
}
proto := p.(*JVSS)
log.Lvl1("Starting setup")
proto.Start()
log.Lvl1("Setup done")
for round := 0; round < jvs.Rounds; round++ {
log.Lvl1("Starting signing round", round)
r := monitor.NewTimeMeasure("round")
log.Lvl2("Requesting signature")
sig, err := proto.Sign(msg)
if err != nil {
log.Error("Could not create signature")
return err
}
if jvs.Verify {
log.Lvl2("Signature received")
if err := proto.Verify(msg, sig); err != nil {
log.Error("Signature invalid")
return err
}
log.Lvl2("Signature valid")
}
r.Record()
}
return nil
}
// Run implements onet.Simulation.
func (cs *Simulation) Run(config *onet.SimulationConfig) error {
size := len(config.Roster.List)
msg := []byte("Hello World Cosi Simulation")
log.Lvl2("Simulation starting with: Size=", size, ", Rounds=", cs.Rounds)
for round := 0; round < cs.Rounds; round++ {
log.Lvl1("Starting round", round)
roundM := monitor.NewTimeMeasure("round")
// create the node with the protocol, but do NOT start it yet.
node, err := config.Overlay.CreateProtocolOnet(Name, config.Tree)
if err != nil {
return err
}
// the protocol itself
proto := node.(*CoSimul)
// give the message to sign
proto.SigningMessage(msg)
// tell us when it is done
done := make(chan bool)
fn := func(sig []byte) {
roundM.Record()
publics := proto.Publics()
if err := cosi.VerifySignature(network.Suite, publics,
msg, sig); err != nil {
log.Lvl1("Round", round, " => fail verification")
} else {
log.Lvl2("Round", round, " => success")
}
done <- true
}
proto.RegisterSignatureHook(fn)
if err := proto.Start(); err != nil {
log.Error("Couldn't start protocol in round", round)
}
<-done
}
log.Lvl1("Simulation finished")
return nil
}
// Run runs the simulation
func (e *Simulation) Run(onetConf *onet.SimulationConfig) error {
doneChan := make(chan bool)
doneCB := func() {
doneChan <- true
}
// FIXME use client instead
dir := blockchain.GetBlockDir()
parser, err := blockchain.NewParser(dir, magicNum)
if err != nil {
log.Error("Error: Couldn't parse blocks in", dir)
return err
}
transactions, err := parser.Parse(0, e.Blocksize)
if err != nil {
log.Error("Error while parsing transactions", err)
return err
}
// FIXME c&p from byzcoin.go
trlist := blockchain.NewTransactionList(transactions, len(transactions))
header := blockchain.NewHeader(trlist, "", "")
trblock := blockchain.NewTrBlock(trlist, header)
// Here we first setup the N^2 connections with a broadcast protocol
pi, err := onetConf.Overlay.CreateProtocolOnet("Broadcast", onetConf.Tree)
if err != nil {
log.Error(err)
}
proto := pi.(*manage.Broadcast)
// channel to notify we are done
broadDone := make(chan bool)
proto.RegisterOnDone(func() {
broadDone <- true
})
// ignore error on purpose: Start always returns nil
_ = proto.Start()
// wait
<-broadDone
log.Lvl3("Simulation can start!")
for round := 0; round < e.Rounds; round++ {
log.Lvl1("Starting round", round)
p, err := onetConf.Overlay.CreateProtocolOnet("ByzCoinPBFT", onetConf.Tree)
if err != nil {
return err
}
proto := p.(*Protocol)
proto.trBlock = trblock
proto.onDoneCB = doneCB
r := monitor.NewTimeMeasure("round_pbft")
err = proto.Start()
if err != nil {
log.Error("Couldn't start PrePrepare")
return err
}
// wait for finishing pbft:
<-doneChan
r.Record()
log.Lvl2("Finished round", round)
}
return nil
}
// Run implements onet.Simulation interface
func (e *Simulation) Run(onetConf *onet.SimulationConfig) error {
log.Lvl2("Simulation starting with: Rounds=", e.Rounds)
server := NewByzCoinServer(e.Blocksize, e.TimeoutMs, e.Fail)
pi, err := onetConf.Overlay.CreateProtocolOnet("Broadcast", onetConf.Tree)
if err != nil {
return err
}
proto, _ := pi.(*manage.Broadcast)
// channel to notify we are done
broadDone := make(chan bool)
proto.RegisterOnDone(func() {
broadDone <- true
})
// ignore error on purpose: Broadcast.Start() always returns nil
_ = proto.Start()
// wait
<-broadDone
for round := 0; round < e.Rounds; round++ {
client := NewClient(server)
err := client.StartClientSimulation(blockchain.GetBlockDir(), e.Blocksize)
if err != nil {
log.Error("Error in ClientSimulation:", err)
return err
}
log.Lvl1("Starting round", round)
// create an empty node
tni := onetConf.Overlay.NewTreeNodeInstanceFromProtoName(onetConf.Tree, "ByzCoin")
if err != nil {
return err
}
// instantiate a byzcoin protocol
rComplete := monitor.NewTimeMeasure("round")
pi, err := server.Instantiate(tni)
if err != nil {
return err
}
onetConf.Overlay.RegisterProtocolInstance(pi)
bz := pi.(*ByzCoin)
// Register callback for the generation of the signature !
bz.RegisterOnSignatureDone(func(sig *BlockSignature) {
rComplete.Record()
if err := verifyBlockSignature(tni.Suite(), tni.Roster().Aggregate, sig); err != nil {
log.Error("Round", round, "failed:", err)
} else {
log.Lvl2("Round", round, "success")
}
})
// Register when the protocol is finished (all the nodes have finished)
done := make(chan bool)
bz.RegisterOnDone(func() {
done <- true
})
if e.Fail > 0 {
go func() {
err := bz.startAnnouncementPrepare()
if err != nil {
log.Error("Error while starting "+
"announcment prepare:", err)
}
}()
// do not run bz.startAnnouncementCommit()
} else {
go func() {
if err := bz.Start(); err != nil {
log.Error("Couldn't start protocol",
err)
}
}()
}
// wait for the end
<-done
log.Lvl3("Round", round, "finished")
}
return nil
}
func (m *monitorMut) NewMeasure(id string) {
m.Lock()
defer m.Unlock()
m.TimeMeasure = monitor.NewTimeMeasure(id)
}