mirror of
https://gitee.com/BTAJL/repchain.git
synced 2024-12-02 19:58:55 +08:00
修改抽签算法，通过伪随机数生成出块人随机序列。
This commit is contained in:
wuwei1972
parent
76c4199fc4
commit
356a6713c2
@ -19,6 +19,7 @@ import com.google.protobuf.ByteString
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/**
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* @author c4w
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* modify by jiangbuyun
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*/
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object Sha256 extends CryptographicHash{
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override val DigestSize: Int = 32
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@ -26,9 +27,15 @@ object Sha256 extends CryptographicHash{
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def hashstr(input: Array[Byte]):String ={
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BytesHex.bytes2hex(hash(input))
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}
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def hashstr(input: String):String ={
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val iptb = ByteString.copyFromUtf8(input)
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BytesHex.bytes2hex(hash(iptb.toByteArray()))
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}
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def hashToBytes(input: String):Array[Byte] ={
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val iptb = ByteString.copyFromUtf8(input)
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hash(iptb.toByteArray())
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}
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}
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@ -17,6 +17,7 @@ package rep.network.consensus.vote
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import rep.crypto.Sha256
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import scala.collection.mutable
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import rep.storage.util.pathUtil
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/**
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* 系统默认
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@ -28,23 +29,50 @@ import scala.collection.mutable
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*/
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//TODO kami 应该在init的时候载入一个实现函数或者类。然后调用方法。写的更通用一些
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trait CRFDVoter extends VoterBase {
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override def blocker(nodes: Set[String], position:Int): Option[String] = {
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//if (nodes.nonEmpty&&position<nodes.size) Option(nodes.head) else None
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case class randomNumber(var number:Long,var generateSerial:Int,var sortPos:Int)
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override def blocker(nodes: Array[String], position:Int): String = {
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if(nodes.nonEmpty){
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var pos = position
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if(position >= nodes.size){
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pos = position % nodes.size
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}
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val a = nodes.toList
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Option(a(pos))
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nodes(pos)
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}else{
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None
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null
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}
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}
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override def candidators(nodes: Set[String], seed: Array[Byte]): Set[String] = {
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var nodesSeq = nodes.toSeq.sortBy(f=>(f.toString()))//nodes.toSeq
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private def getRandomList(seed:Long,candidatorLen:Int,candidatorTotal:Int):Array[randomNumber]={
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val m = 2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2
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val a = 2045
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val b = 1
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var randomArray = new Array[randomNumber](candidatorTotal)
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var hashSeed = seed.abs
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for(i<-0 to candidatorTotal-1){
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var tmpSeed = (a * hashSeed + b) % m
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tmpSeed = tmpSeed.abs
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if(tmpSeed == hashSeed) tmpSeed = tmpSeed + 1
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hashSeed = tmpSeed
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var randomobj = new randomNumber(hashSeed,i,-1)
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randomArray(i) = randomobj
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}
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randomArray = randomArray.sortWith(
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(randomNumber_left,randomNumber_right)=> randomNumber_left.number < randomNumber_right.number)
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for(i<-0 to randomArray.size-1){
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randomArray(i).sortPos = i
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}
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randomArray = randomArray.sortWith(
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(randomNumber_left,randomNumber_right)=> randomNumber_left.generateSerial < randomNumber_right.generateSerial)
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randomArray
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}
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override def candidators(nodes: Set[String], seed: Array[Byte]): Array[String] = {
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var nodesSeq = nodes.toSeq.sortBy(f=>(f.toString()))
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var len = nodes.size / 2 + 1
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val min_len = 4
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len = if(len<min_len){
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@ -53,27 +81,25 @@ trait CRFDVoter extends VoterBase {
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}
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else len
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if(len<4){
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Set.empty
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null
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}
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else{
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var candidate = mutable.Seq.empty[String]
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var index = 0
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var hashSeed = seed
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while (candidate.size < len) {
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if (index >= hashSeed.size) {
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hashSeed = Sha256.hash(hashSeed)
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index = 0
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}
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//应该按位来计算
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if ((hashSeed(index) & 1) == 1) {
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candidate = (candidate :+ nodesSeq(index % (nodesSeq.size)))
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nodesSeq = (nodesSeq.toSet - nodesSeq(index % (nodesSeq.size))).toSeq
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}
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index += 1
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//var candidate = mutable.Seq.empty[String]
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var candidate = new Array[String](len)
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var hashSeed:Long = pathUtil.bytesToInt(seed)
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var randomList = getRandomList(hashSeed,len,nodes.size)
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//PrintRandomArray(randomList)
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println(randomList(0).sortPos)
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for(j<-0 to len-1){
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var e = randomList(j)
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//candidate = (candidate :+ nodesSeq(e.sortPos))
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candidate(j) = nodesSeq(e.sortPos)
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}
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candidate.toSet
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//candidate.toSet
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candidate
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}
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}
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}
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@ -78,7 +78,7 @@ class CRFDVoterModule(moduleName: String) extends ModuleBase(moduleName) with CR
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def rnd = ThreadLocalRandom.current
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var candidatorCur = Set.empty[ String ]
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var candidatorCur : Array[ String ] = null
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var isWaiting = false
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@ -167,15 +167,15 @@ class CRFDVoterModule(moduleName: String) extends ModuleBase(moduleName) with CR
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val seed = pe.getVoteBlockHash//pe.getCurrentBlockHash
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candidatorCur = candidators(SystemCertList.getSystemCertList, Sha256.hash(seed))
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if (!candidatorCur.isEmpty) {
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if (candidatorCur != null) {
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pe.resetCandidator(candidatorCur)
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if(pe.getCacheHeight() >= 1){
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val blo = blocker(candidatorCur, pe.getBlker_index)
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if (blo != None) {
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pe.resetBlocker(blo.get)
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if (blo != null) {
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pe.resetBlocker(blo)
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//暂时只找到该方法能够明确标识一个在网络中（有网络地址）的节点，后续发现好方法可以完善
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logMsg(LOG_TYPE.INFO, s"Select in getCacheHeight=${pe.getCacheHeight()} Candidates : ${candidatorCur} ~ Blocker : ${blo},currenthash=${pe.getCurrentBlockHash},index=${pe.getBlker_index}")
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if (pe.getSysTag == blo.get.toString()) {
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if (pe.getSysTag == blo) {
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getActorRef(ActorType.BLOCK_MODULE) ! (BlockEvent.CREATE_BLOCK, "")
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logMsg(LOG_TYPE.INFO, s"Select in getCacheHeight=${pe.getCacheHeight()} Candidates : ${candidatorCur} ,send Create cmd~ Blocker : ${blo},currenthash=${pe.getCurrentBlockHash},index=${pe.getBlker_index}")
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}
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@ -35,7 +35,7 @@ trait VoterBase {
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* @return
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*/
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//def blocker[T](nodes:Set[T], position:Int):Option[T]
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def blocker(nodes:Set[String], position:Int):Option[String]
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def blocker(nodes:Array[String], position:Int):String
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/**
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* 获取候选人节点
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@ -45,5 +45,5 @@ trait VoterBase {
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* @return
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*/
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//def candidators[T](nodes:Set[T], seed:Array[Byte]):Set[T]
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def candidators(nodes:Set[String], seed:Array[Byte]):Set[String]
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def candidators(nodes:Set[String], seed:Array[Byte]):Array[String]
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}
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@ -260,7 +260,7 @@ class PeerExtensionImpl extends Extension {
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}
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}
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def resetCandidator(nds: Set[ String ]): Unit = {
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def resetCandidator(nds: Array[ String ]): Unit = {
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candidatorLock.lock()
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try{
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candidator = immutable.TreeMap.empty[String,String]
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207
src/main/scala/rep/storage/test/testRandomVote.scala
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207
src/main/scala/rep/storage/test/testRandomVote.scala
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@ -0,0 +1,207 @@
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package rep.storage.test
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import scala.collection.mutable
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import rep.crypto.Sha256
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import rep.storage.util.pathUtil
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object testRandomVote {
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case class randomstatis(listsize:Int,clist:scala.collection.mutable.ArrayBuffer[String])
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case class randomNumber(var number:Long,var generateSerial:Int,var sortPos:Int)
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var statisvar:randomstatis = null
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var statis:Array[Int] = null
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def getRandomList(seed:Long,candidatorLen:Int,candidatorTotal:Int):Array[randomNumber]={
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val m = 2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2
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val a = 2045
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val b = 1
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var randomArray = new Array[randomNumber](candidatorTotal)
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var hashSeed = seed.abs
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for(i<-0 to candidatorTotal-1){
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var tmpSeed = (a * hashSeed + b) % m
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tmpSeed = tmpSeed.abs
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if(tmpSeed == hashSeed) tmpSeed = tmpSeed + 1
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hashSeed = tmpSeed
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var randomobj = new randomNumber(hashSeed,i,-1)
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randomArray(i) = randomobj
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}
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randomArray = randomArray.sortWith(
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(randomNumber_left,randomNumber_right)=> randomNumber_left.number < randomNumber_right.number)
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for(i<-0 to randomArray.size-1){
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randomArray(i).sortPos = i
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}
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randomArray = randomArray.sortWith(
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(randomNumber_left,randomNumber_right)=> randomNumber_left.generateSerial < randomNumber_right.generateSerial)
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randomArray
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}
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def PrintRandomArray(ra : Array[randomNumber])={
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if(ra == null) println("no data,input is null")
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if(ra.size == 0) println("no data, input length is zero")
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for(i<-0 to (ra.length-1)){
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println("randomnumber="+ra(i).number+",generateSerial="+ra(i).generateSerial+",sortpos="+ra(i).sortPos+"|||")
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}
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}
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def getRandomString(length:Int):String={
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val str="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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var random=new util.Random()
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var sb=new StringBuffer()
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for( i<-0 to length-1){
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val number= random.nextInt(62)
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sb.append(str.charAt(number))
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}
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sb.toString()
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}
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def getRandomSha256String(length:Int): Array[Byte]={
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val s = getRandomString(length)
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//println(Sha256.hashstr(s))
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Sha256.hashToBytes(s)
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}
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def findIndex(indexs:Array[Int],idx:Int):Boolean={
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var b = false
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for( i<-0 to indexs.length-1){
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if(indexs(i) == idx){
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b = true
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}
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}
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b
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}
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def candidators(nodes: Set[String], seed: Array[Byte]): Array[String] = {
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var nodesSeq = nodes.toSeq.sortBy(f=>(Integer.parseInt(f.toString())))
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var len = nodes.size / 2 + 1
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val min_len = 4
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len = if(len<min_len){
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if(nodes.size < min_len) nodes.size
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else min_len
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}
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else len
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if(len<4){
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null
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}
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else{
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//var candidate = mutable.Seq.empty[String]
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var candidate = new Array[String](len)
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var hashSeed:Long = pathUtil.bytesToInt(seed)
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var randomList = getRandomList(hashSeed,len,nodes.size)
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//PrintRandomArray(randomList)
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println(randomList(0).sortPos)
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for(j<-0 to len-1){
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var e = randomList(j)
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//candidate = (candidate :+ nodesSeq(e.sortPos))
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candidate(j) = nodesSeq(e.sortPos)
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}
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//candidate.toSet
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candidate
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}
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}
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def blocker(nodes: Array[String], position:Int): String = {
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if(nodes.nonEmpty){
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var pos = position
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if(position >= nodes.size){
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pos = position % nodes.size
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}
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val a = nodes.toList
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nodes(pos)
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}else{
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null
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}
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}
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def getStableNodes(length:Int) :Set[String] = {
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var source = Set.empty[String]
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for(i <- 0 to length-1){
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source += i.toString()
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}
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source
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}
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def checkblker(nodecount:Int,pos:Int)={
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val c = getStableNodes(nodecount)
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val hashbytes = getRandomSha256String(500)
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val cs = candidators(c, hashbytes)
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val blo = blocker(cs, pos)
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//statisvar.clist += blo.toString()
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//println(cs.toString()+"\t"+blo.toString())
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val idx = Integer.parseInt(blo)
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statis(idx) = statis(idx) + 1
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//println(blo.toString())
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}
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def testRandomBlocker(count:Int,nodes:Int,pos:Int){
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//statisvar = new randomstatis(count,new scala.collection.mutable.ArrayBuffer[String](count))
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statis = new Array[Int](nodes)
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for(i<-0 to count-1){
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checkblker(nodes,pos)
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}
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//println(statisvar.clist.toString())
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for(j<-0 to statis.length-1) print(","+"blocker="+j+"("+statis(j).toString()+")")
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}
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def printRandom(size:Int){
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for(j<-0 to 1000){
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val istr = getRandomSha256String(500)
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var i = pathUtil.bytesToInt(istr)
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if(i < 0){
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i = i.abs
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}
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println("\t"+i % size)
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}
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}
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def testPrintRandomArray(len:Int,size:Int){
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for(j<-0 to 1000){
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val istr = getRandomSha256String(500)
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var seed = pathUtil.bytesToInt(istr)
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var ra = getRandomList(seed,len,size)
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PrintRandomArray(ra)
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println("-------------------")
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}
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}
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def printRandomlist(size:Int){
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val m = 2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2*2//43112609
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val a = 2045//12477 // a = 4p + 1 3119
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val b = 1//4667 // b = 2q + 1 2333
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var tmpstatis = new Array[Int](size)
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val istr = getRandomSha256String(500)
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var l = pathUtil.bytesToInt(istr)
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if(l < 0){
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l = l.abs
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}
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for(i<-0 to 1000){
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l = a*l+b
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if(l < 0) l = l.abs
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tmpstatis(l % size) = tmpstatis(l % size) +1
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println("\t"+l % size)
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}
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for(j<-0 to tmpstatis.length-1)
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print(","+tmpstatis(j))
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}
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def main(args: Array[String]): Unit = {
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//println(pathUtil.IsPrime(2333))
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testRandomBlocker(100000,5,0)
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//printRandom(4)
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//printRandomlist(30)
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//testPrintRandomArray(16,30)
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}
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}
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@ -119,4 +119,25 @@ public class pathUtil {
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}
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return l;
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}
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public static int bytesToInt(byte[] inputs){
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if(inputs == null) return 0;
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if(inputs.length < 4) return 0;
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return (inputs[0] & 0xff) << 24
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| (inputs[1] & 0xff) << 16
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| (inputs[2] & 0xff) << 8
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| (inputs[3] & 0xff) << 0 ;
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}
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public static boolean IsPrime(int n){
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if (n <= 3) {
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return n > 1;
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}
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for(int i=2;i<=Math.sqrt(n);i++){
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if(n%i == 0)
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return false;
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}
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return true;
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}
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}
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