KCN fix

index.js

@@ -46,14 +46,40 @@ function hash256(buffer) {
   return sha256(sha256(buffer));
 };
 
+function sha256_3(buffer) {
+  return crypto.createHash('sha3-256').update(buffer).digest();
+};
+
+function hash256_3(buffer) {
+  return sha256_3(sha256_3(buffer));
+};
+
+function transaction_hash(transaction, forWitness) {
+  if (forWitness && transaction.isCoinbase()) return Buffer.alloc(32, 0);
+  return hash256(transaction.__toBuffer(undefined, undefined, forWitness));
+}
+
+function transaction_hash3(transaction, forWitness) {
+  if (forWitness && transaction.isCoinbase()) return Buffer.alloc(32, 0);
+  return hash256_3(transaction.__toBuffer(undefined, undefined, forWitness));
+}
+
 function getMerkleRoot(transactions) {
   if (transactions.length === 0) return Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex')
   const forWitness = txesHaveWitnessCommit(transactions);
-  const hashes = transactions.map(transaction => transaction.getHash(forWitness));
+  const hashes = transactions.map(transaction => transaction_hash(transaction, forWitness));
   const rootHash = fastMerkleRoot(hashes, hash256);
   return forWitness ? hash256(Buffer.concat([rootHash, transactions[0].ins[0].witness[0]])) : rootHash;
 }
 
+function getMerkleRoot3(transactions) {
+  if (transactions.length === 0) return Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex')
+  const forWitness = txesHaveWitnessCommit(transactions);
+  const hashes = transactions.map(transaction => transaction_hash3(transaction, forWitness));
+  const rootHash = fastMerkleRoot(hashes, hash256_3);
+  return forWitness ? hash256_3(Buffer.concat([rootHash, transactions[0].ins[0].witness[0]])) : rootHash;
+}
+
 let last_epoch_number;
 let last_seed_hash;
 
@@ -169,10 +195,26 @@ function update_merkle_root_hash(offset, payload, blob_in, blob_out) {
   getMerkleRoot(transactions).copy(blob_out, 4 + 32);
 };
 
+function update_merkle_root_hash3(offset, payload, blob_in, blob_out) {
+  const nTransactions = varuint.decode(blob_in, offset);
+  offset += varuint.decode.bytes;
+  let transactions = [];
+  for (let i = 0; i < nTransactions; ++i) {
+    const tx = bitcoin.Transaction.fromBuffer(blob_in.slice(offset), true, payload && i == 0);
+    transactions.push(tx);
+    offset += tx.byteLength();
+  }
+  getMerkleRoot3(transactions).copy(blob_out, 4 + 32);
+};
+
 module.exports.blockHashBuff = function(blobBuffer) {
   return reverseBuffer(hash256(blobBuffer));
 };
 
+module.exports.blockHashBuff3 = function(blobBuffer) {
+  return reverseBuffer(hash256_3(blobBuffer));
+};
+
 module.exports.convertRavenBlob = function(blobBuffer) {
   let header = blobBuffer.slice(0, 80);
   update_merkle_root_hash(80 + 8 + 32, false, blobBuffer, header);
@@ -221,8 +263,20 @@ module.exports.convertRtmBlob = function(blobBuffer) {
   return header;
 };
 
+module.exports.convertKcnBlob = function(blobBuffer) {
+  let header = blobBuffer.slice(0, 80);
+  update_merkle_root_hash3(80, false, blobBuffer, header);
+  return header;
+};
+
 module.exports.constructNewRtmBlob = function(blockTemplate, nonceBuff) {
   update_merkle_root_hash(80, true, blockTemplate, blockTemplate);
   nonceBuff.copy(blockTemplate, 76, 0, 4);
   return blockTemplate;
 };
+
+module.exports.constructNewKcnBlob = function(blockTemplate, nonceBuff) {
+  update_merkle_root_hash(80, false, blockTemplate, blockTemplate);
+  nonceBuff.copy(blockTemplate, 76, 0, 4);
+  return blockTemplate;
+};

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cryptoforknote-util",
-  "version": "15.3.5",
+  "version": "15.3.9",
   "author": {
     "name": "LucasJones",
     "email": "lucasjonesdev@hotmail.co.uk"

rtm.js

@@ -162,7 +162,7 @@ function addressToScript(addr) {
   return Buffer.concat([Buffer.from([0x76, 0xa9, 0x14]), pubkey, Buffer.from([0x88, 0xac])]);
 }
 
-function createOutputTransaction(amount, payee, rewardToPool, reward, txOutputBuffers, payeeScript) {
+function createTransactionOutput(amount, payee, rewardToPool, reward, txOutputBuffers, payeeScript) {
   const payeeReward = amount;
   if (!payeeScript) payeeScript = addressToScript(payee);
   txOutputBuffers.push(Buffer.concat([
@@ -173,25 +173,25 @@ function createOutputTransaction(amount, payee, rewardToPool, reward, txOutputBu
   return { reward: reward - amount, rewardToPool: rewardToPool - amount };
 }
 
-function generateOutputTransactions(rpcData, poolAddress) {
+function generateTransactionOutputs(rpcData, poolAddress, is_witness) {
   let reward       = rpcData.coinbasevalue;
   let rewardToPool = reward;
   let txOutputBuffers = [];
 
   if (rpcData.coinbasedevreward) {
-    const rewards = createOutputTransaction(rpcData.coinbasedevreward.value, rpcData.coinbasedevreward.address, rewardToPool, reward, txOutputBuffers, Buffer.from(rpcData.coinbasedevreward.scriptpubkey, 'hex'));
+    const rewards = createTransactionOutput(rpcData.coinbasedevreward.value, rpcData.coinbasedevreward.address, rewardToPool, reward, txOutputBuffers, Buffer.from(rpcData.coinbasedevreward.scriptpubkey, 'hex'));
     reward        = rewards.reward;
     rewardToPool  = rewards.rewardToPool;
   }
 
   if (rpcData.smartnode) {
     if (rpcData.smartnode.payee) {
-      const rewards = createOutputTransaction(rpcData.smartnode.amount, rpcData.smartnode.payee, rewardToPool, reward, txOutputBuffers);
+      const rewards = createTransactionOutput(rpcData.smartnode.amount, rpcData.smartnode.payee, rewardToPool, reward, txOutputBuffers);
       reward        = rewards.reward;
       rewardToPool  = rewards.rewardToPool;
     } else if (Array.isArray(rpcData.smartnode)) {
       for (let i in rpcData.smartnode) {
-        const rewards = createOutputTransaction(rpcData.smartnode[i].amount, rpcData.smartnode[i].payee, rewardToPool, reward, txOutputBuffers);
+        const rewards = createTransactionOutput(rpcData.smartnode[i].amount, rpcData.smartnode[i].payee, rewardToPool, reward, txOutputBuffers);
 	reward        = rewards.reward;
         rewardToPool  = rewards.rewardToPool;
       }
@@ -200,7 +200,7 @@ function generateOutputTransactions(rpcData, poolAddress) {
 
   if (rpcData.superblock) {
     for (let i in rpcData.superblock) {
-      const rewards = createOutputTransaction(rpcData.superblock[i].amount, rpcData.superblock[i].payee, rewardToPool, reward, txOutputBuffers);
+      const rewards = createTransactionOutput(rpcData.superblock[i].amount, rpcData.superblock[i].payee, rewardToPool, reward, txOutputBuffers);
       reward        = rewards.reward;
       rewardToPool  = rewards.rewardToPool;
     }
@@ -208,23 +208,23 @@ function generateOutputTransactions(rpcData, poolAddress) {
 
   if (rpcData.founder_payments_started && rpcData.founder) {
     const founderReward = rpcData.founder.amount || 0;
-    const rewards = createOutputTransaction(founderReward, rpcData.founder.payee, rewardToPool, reward, txOutputBuffers);
+    const rewards = createTransactionOutput(founderReward, rpcData.founder.payee, rewardToPool, reward, txOutputBuffers);
     reward        = rewards.reward;
     rewardToPool  = rewards.rewardToPool;
   }
 
-  createOutputTransaction(rewardToPool, null, rewardToPool, reward, txOutputBuffers, Buffer.from(addressToScript(poolAddress), "hex"));
+  createTransactionOutput(rewardToPool, null, rewardToPool, reward, txOutputBuffers, Buffer.from(addressToScript(poolAddress), "hex"));
 
-  if (rpcData.default_witness_commitment !== undefined) {
+  if (is_witness) {
     const witness_commitment = Buffer.from(rpcData.default_witness_commitment, 'hex');
-    txOutputBuffers.unshift(Buffer.concat([
-      packInt64LE(0),
+    txOutputBuffers.push(Buffer.concat([
+      varIntBuffer(1),
       varIntBuffer(witness_commitment.length),
       witness_commitment
     ]));
   }
 
-  return Buffer.concat([ varIntBuffer(txOutputBuffers.length), Buffer.concat(txOutputBuffers)]);
+  return Buffer.concat([ varIntBuffer(is_witness ? txOutputBuffers.length - 1 : txOutputBuffers.length), Buffer.concat(txOutputBuffers)]);
 }
 
 module.exports.RtmBlockTemplate = function(rpcData, poolAddress) {
@@ -240,9 +240,12 @@ module.exports.RtmBlockTemplate = function(rpcData, poolAddress) {
 
   const scriptSigPart2 = serializeString('/nodeStratum/');
 
+  const is_witness = false; //rpcData.default_witness_commitment !== undefined;
+
   const blob1 = Buffer.concat([
     coinbaseVersion,
     // transaction input
+    Buffer.from(is_witness ? "0001" : "", 'hex'),
     varIntBuffer(1), // txInputsCount
     uint256BufferFromHash(""), // txInPrevOutHash
     packUInt32LE(Math.pow(2, 32) - 1), // txInPrevOutIndex
@@ -255,7 +258,7 @@ module.exports.RtmBlockTemplate = function(rpcData, poolAddress) {
     packUInt32LE(0), // txInSequence
     // end transaction input
     // transaction output
-    generateOutputTransactions(rpcData, poolAddress),
+    generateTransactionOutputs(rpcData, poolAddress, is_witness),
     // end transaction ouput
     packUInt32LE(0) // txLockTime
   ]);