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drynx_simul.go
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package main
import (
"github.com/ldsec/drynx/lib/range"
"go.dedis.ch/kyber/v3"
"os"
"sync"
"time"
"github.com/BurntSushi/toml"
"github.com/ldsec/drynx/lib"
"github.com/ldsec/drynx/lib/provider/loaders"
"github.com/ldsec/drynx/lib/provider/neutralizers"
"github.com/ldsec/drynx/services"
"github.com/ldsec/unlynx/lib"
"go.dedis.ch/cothority/v3/skipchain"
"go.dedis.ch/onet/v3"
"go.dedis.ch/onet/v3/log"
"go.dedis.ch/onet/v3/network"
"gopkg.in/satori/go.uuid.v1"
)
// SimulationDrynx state of a simulation.
type SimulationDrynx struct {
onet.SimulationBFTree
// Topology
NbrServers int
NbrVNs int
NbrDPs int
NbrDPsPerServer int
//Log Reg
NbrRecords int
//Proofs
Proofs int
Ranges int
InputValidation bool
Obfuscation bool
ThresholdGeneral float64
ThresholdOther float64
// Query
OperationName string
NbrInput int
NbrOutput int
//DiffP
DiffPEpsilon float64
DiffPDelta float64
DiffPSize int
DiffPQuanta float64
DiffPScale float64
DiffPLimit float64
DiffPOpti bool
// Data and query response
GroupByValues []int64
DPRows uint
MinData int64
MaxData int64
CuttingFactor int
MaxIterations int
}
// NewSimulationDrynx constructs a full Drynx service simulation.
func NewSimulationDrynx(config string) (onet.Simulation, error) {
sl := &SimulationDrynx{}
_, err := toml.Decode(config, sl)
if err != nil {
return nil, err
}
loader, err := loaders.NewRandom(float64(sl.MinData), float64(sl.MaxData), sl.DPRows)
if err != nil {
panic(err)
}
services.NewBuilder().
WithComputingNode().
WithDataProvider(loader, neutralizers.NewMinimumResultsSize(0)).
WithVerifyingNode().
Start()
return sl, nil
}
// Setup creates the tree used for that simulation
func (sim *SimulationDrynx) Setup(dir string, hosts []string) (*onet.SimulationConfig, error) {
sc := &onet.SimulationConfig{}
sim.CreateRoster(sc, hosts, 2000)
err := sim.CreateTree(sc)
if err != nil {
return nil, err
}
log.Lvl2("Setup done")
return sc, nil
}
// Run starts the simulation.
func (sim *SimulationDrynx) Run(config *onet.SimulationConfig) error {
os.Remove("pre_compute_multiplications.gob")
// has to be set here because cannot be in toml file
diffP := libdrynx.QueryDiffP{LapMean: sim.DiffPEpsilon, LapScale: sim.DiffPDelta, Quanta: sim.DiffPQuanta, NoiseListSize: sim.DiffPSize, Scale: sim.DiffPScale, Limit: sim.DiffPLimit}
//logistic regression
m := int64(sim.DPRows) - 1
means := make([]float64, m)
stds := make([]float64, m)
for i := 0; i < int(m); i++ {
stds[i] = 100
}
lrParameters := libdrynx.LogisticRegressionParameters{
FilePath: "",
NbrRecords: int64(sim.NbrRecords),
NbrFeatures: m,
Means: means,
StandardDeviations: stds,
K: 2,
PrecisionApproxCoefficients: 1,
Lambda: 1.0,
Step: 0.1,
MaxIterations: sim.MaxIterations,
InitialWeights: make([]float64, m+1),
}
// operation
operation := libdrynx.Operation{NameOp: sim.OperationName, NbrInput: sim.NbrInput, NbrOutput: sim.NbrOutput, QueryMin: sim.MinData, QueryMax: sim.MaxData, LRParameters: lrParameters}
// create the ranges for input validation
ranges := make([]*libdrynx.Int64List, operation.NbrOutput)
switch sim.Ranges {
case -1:
ranges = nil
break
case 16:
for i := range ranges {
u := int64(16)
l := int64(16)
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 99:
for i := range ranges {
var u, l int64
if i%3 == 0 {
u = int64(16)
l = int64(2)
} else if i%3 == 1 {
u = int64(16)
l = int64(4)
} else if i%3 == 2 {
u = int64(2)
l = int64(1)
} else {
log.Fatal("You are not running the variance you naughty boy!")
}
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 100:
for i := range ranges {
var u, l int64
if i%3 == 0 {
u = int64(4)
l = int64(11)
} else if i%3 == 1 {
u = int64(4)
l = int64(7)
} else if i%3 == 2 {
u = int64(4)
l = int64(3)
} else {
log.Fatal("You are not running the variance you naughty boy!")
}
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 101:
for i := range ranges {
var u, l int64
if i%3 == 0 {
u = int64(4)
l = int64(13)
} else if i%3 == 1 {
u = int64(4)
l = int64(9)
} else if i%3 == 2 {
u = int64(4)
l = int64(5)
} else {
log.Fatal("You are not running the variance you naughty boy!")
}
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 102:
for i := range ranges {
var u, l int64
if i%3 == 0 {
u = int64(4)
l = int64(15)
} else if i%3 == 1 {
u = int64(4)
l = int64(11)
} else if i%3 == 2 {
u = int64(4)
l = int64(7)
} else {
log.Fatal("You are not running the variance you naughty boy!")
}
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 103:
for i := range ranges {
var u, l int64
if i%3 == 0 {
u = int64(4)
l = int64(17)
} else if i%3 == 1 {
u = int64(4)
l = int64(13)
} else if i%3 == 2 {
u = int64(4)
l = int64(9)
} else {
log.Fatal("You are not running the variance you naughty boy!")
}
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 1:
for i := range ranges {
u := int64(2)
l := int64(1)
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 0:
for i := range ranges {
u := int64(0)
l := int64(0)
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 17:
for i := range ranges {
u := int64(8)
l := int64(3)
/*if sim.CuttingFactor != 0 {
if i != 0 && i%(sim.NbrOutput/sim.CuttingFactor) == 0 {
log.Lvl1("[0,1]")
u = int64(2)
l = int64(1)
}
}
if i == len(ranges)-1 {
log.Lvl1("[0,1]")
u = int64(2)
l = int64(1)
}*/
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
case 18:
for i := range ranges {
u := int64(16)
l := int64(5)
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
case 19:
for i := range ranges {
u := int64(4)
l := int64(16)
ranges[i] = &libdrynx.Int64List{Content: []int64{u, l}}
}
break
}
// signatures for Input Validation
ps := make([]*libdrynx.PublishSignatureBytesList, sim.NbrServers)
if !(ranges == nil) && sim.Ranges != 0 {
wg := libunlynx.StartParallelize(sim.NbrServers)
for i := 0; i < sim.NbrServers; i++ {
go func(index int) {
defer wg.Done()
temp := make([]libdrynx.PublishSignatureBytes, len(ranges))
for j := 0; j < len(ranges); j++ {
if sim.CuttingFactor != 0 {
temp[j] = libdrynxrange.InitRangeProofSignatureDeterministic((*ranges[j]).Content[0])
} else {
temp[j] = libdrynxrange.InitRangeProofSignature((*ranges[j]).Content[0]) // u is the first elem
}
}
ps[index] = &libdrynx.PublishSignatureBytesList{Content: temp}
log.Lvl1("Finished creating signatures for server", index)
}(i)
}
libunlynx.EndParallelize(wg)
} else {
ps = nil
}
//define servers and data providers in the set of nodes + adapt the aggregate key (CA public key)
elTotal := (*config.Tree).Roster
elServers := elTotal.List[:sim.NbrServers]
elVNs := elTotal.List[sim.NbrServers : sim.NbrServers+sim.NbrVNs]
elDPs := elTotal.List[sim.NbrServers+sim.NbrVNs : sim.NbrServers+sim.NbrVNs+sim.NbrDPs]
if sim.NbrDPs%sim.NbrDPsPerServer != 0 {
log.Fatal("The total number of servers must match the number of servers per data provider")
}
dpToServers := make(map[string]*[]network.ServerIdentity, 0)
dpIndex := 0
for _, v := range elServers {
if dpIndex < len(elDPs) {
key := v.String()
value := make([]network.ServerIdentity, sim.NbrDPsPerServer)
dpToServers[key] = &value
for j := range *dpToServers[key] {
if dpIndex < len(elDPs) {
val := elDPs[dpIndex]
(*dpToServers[key])[j] = *val
}
dpIndex++
}
}
}
rosterServers := onet.NewRoster(elServers)
rosterVNs := onet.NewRoster(elVNs)
idToPublic := make(map[string]kyber.Point)
for _, v := range rosterServers.List {
idToPublic[v.String()] = v.ServicePublic(services.ServiceName)
}
if rosterVNs != nil {
for _, v := range rosterVNs.List {
idToPublic[v.String()] = v.ServicePublic(services.ServiceName)
}
}
for _, v := range elDPs {
idToPublic[v.String()] = v.ServicePublic(services.ServiceName)
}
// Create a client (querier) for the service)
client := services.NewDrynxClient(rosterServers.List[0], "simul-Drynx")
// query generation
surveyID := uuid.NewV4().String()
var thresholdEntityProofsVerif []float64
if sim.Obfuscation == false {
thresholdEntityProofsVerif = []float64{sim.ThresholdGeneral, sim.ThresholdOther, sim.ThresholdOther, 0.0, sim.ThresholdOther}
} else {
thresholdEntityProofsVerif = []float64{sim.ThresholdGeneral, sim.ThresholdOther, sim.ThresholdOther, sim.ThresholdOther, sim.ThresholdOther}
}
sq := client.GenerateSurveyQuery(rosterServers, rosterVNs, dpToServers, idToPublic, surveyID, operation, ranges, ps, sim.Proofs, sim.Obfuscation, thresholdEntityProofsVerif, diffP, sim.CuttingFactor)
if !libdrynx.CheckParameters(sq, diffP.NoiseListSize > 0) {
log.Fatal("Oups!")
}
overallTimer := time.Now()
startSimulation := libunlynx.StartTimer("Simulation")
var wg *sync.WaitGroup
var block *skipchain.SkipBlock
var err error
if sim.Proofs != 0 {
// send query to the skipchain and 'wait' for all proofs' verification to be done
clientSkip := services.NewDrynxClient(elVNs[0], "simul-skip-"+sim.OperationName)
wg = libunlynx.StartParallelize(1)
go func(elVNs *onet.Roster) {
defer wg.Done()
err := clientSkip.SendSurveyQueryToVNs(elVNs, &sq)
if err != nil {
log.Fatal("Error sending query to VNs:", err)
}
}(rosterVNs)
libunlynx.EndParallelize(wg)
wg = libunlynx.StartParallelize(1)
go func(si *network.ServerIdentity) {
defer wg.Done()
block, err = clientSkip.SendEndVerification(si, surveyID)
if err != nil {
log.Fatal("Error starting the 'waiting' threads:", err)
}
}(elVNs[0])
}
// send query and receive results
grp, aggr, err := client.SendSurveyQuery(sq)
if err != nil {
log.Fatal("'Drynx' service did not start.", err)
}
// Result printing
if len(*grp) != 0 && len(*grp) != len(*aggr) {
log.Fatal("Results format problem")
} else {
for i, v := range *aggr {
log.Lvl1((*grp)[i], ": ", v)
}
}
if len(elVNs) > 0 {
clientSkip := services.NewDrynxClient(elVNs[0], "simul-skip")
if sim.Proofs != 0 {
libunlynx.EndParallelize(wg)
// close DB
if err := clientSkip.SendCloseDB(rosterVNs, &libdrynx.CloseDB{Close: 1}); err != nil {
log.Fatal("Error closing the DB:", err)
}
}
retrieveBlock := time.Now()
sb, err := clientSkip.SendGetLatestBlock(rosterVNs, block)
if err != nil || sb == nil {
log.Fatal("Something wrong when fetching the last block")
}
log.Lvl1(time.Since(retrieveBlock))
}
libunlynx.EndTimer(startSimulation)
log.Lvl1(time.Since(overallTimer))
return nil
}