Added SAL support

binding.gyp

@@ -31,7 +31,7 @@
                 "-fno-exceptions -std=gnu11 -march=native -fPIC -DNDEBUG -Ofast -funroll-loops -fvariable-expansion-in-unroller -ftree-loop-if-convert-stores -fmerge-all-constants -fbranch-target-load-optimize2"
             ],
             "cflags_cc": [
-                "-fexceptions -frtti -std=c++14 -march=native -fPIC -DNDEBUG -Ofast -s -funroll-loops -fvariable-expansion-in-unroller -ftree-loop-if-convert-stores -fmerge-all-constants -fbranch-target-load-optimize2"
+                "-fexceptions -frtti -std=c++17 -march=native -fPIC -DNDEBUG -Ofast -s -funroll-loops -fvariable-expansion-in-unroller -ftree-loop-if-convert-stores -fmerge-all-constants -fbranch-target-load-optimize2"
             ],
             "xcode_settings": {
                 "OTHER_CFLAGS": [ "-fexceptions -frtti" ]

index.js

@@ -46,10 +46,28 @@ function hash256(buffer) {
   return sha256(sha256(buffer));
 };
 
-function getMerkleRoot(transactions) {
+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, transaction_hash_func, detectWitness) {
   if (transactions.length === 0) return Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex')
-  const forWitness = txesHaveWitnessCommit(transactions);
-  const hashes = transactions.map(transaction => transaction.getHash(forWitness));
+  const forWitness = detectWitness ? txesHaveWitnessCommit(transactions) : false;
+  const hashes = transactions.map(transaction => transaction_hash_func(transaction, forWitness));
   const rootHash = fastMerkleRoot(hashes, hash256);
   return forWitness ? hash256(Buffer.concat([rootHash, transactions[0].ins[0].witness[0]])) : rootHash;
 }
@@ -157,7 +175,7 @@ module.exports.RavenBlockTemplate = function(rpcData, poolAddress) {
   };
 };
 
-function update_merkle_root_hash(offset, payload, blob_in, blob_out) {
+function update_merkle_root_hash(offset, payload, blob_in, blob_out, transaction_hash_func, detectWitness) {
   const nTransactions = varuint.decode(blob_in, offset);
   offset += varuint.decode.bytes;
   let transactions = [];
@@ -166,21 +184,25 @@ function update_merkle_root_hash(offset, payload, blob_in, blob_out) {
     transactions.push(tx);
     offset += tx.byteLength();
   }
-  getMerkleRoot(transactions).copy(blob_out, 4 + 32);
+  getMerkleRoot(transactions, transaction_hash_func, detectWitness).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);
+  update_merkle_root_hash(80 + 8 + 32, false, blobBuffer, header, transaction_hash, true);
   return module.exports.blockHashBuff(header);
 };
 
 module.exports.constructNewRavenBlob = function(blockTemplate, nonceBuff, mixhashBuff) {
-  update_merkle_root_hash(80 + 8 + 32, false, blockTemplate, blockTemplate);
+  update_merkle_root_hash(80 + 8 + 32, false, blockTemplate, blockTemplate, transaction_hash, true);
   nonceBuff.copy  (blockTemplate, 80, 0, 8);
   mixhashBuff.copy(blockTemplate, 88, 0, 32);
   return blockTemplate;
@@ -217,12 +239,24 @@ module.exports.RtmBlockTemplate = function(rpcData, poolAddress) {
 
 module.exports.convertRtmBlob = function(blobBuffer) {
   let header = blobBuffer.slice(0, 80);
-  update_merkle_root_hash(80, true, blobBuffer, header);
+  update_merkle_root_hash(80, true, blobBuffer, header, transaction_hash, true);
+  return header;
+};
+
+module.exports.convertKcnBlob = function(blobBuffer) {
+  let header = blobBuffer.slice(0, 80);
+  update_merkle_root_hash(80, false, blobBuffer, header, transaction_hash3, false);
   return header;
 };
 
 module.exports.constructNewRtmBlob = function(blockTemplate, nonceBuff) {
-  update_merkle_root_hash(80, true, blockTemplate, blockTemplate);
+  update_merkle_root_hash(80, true, blockTemplate, blockTemplate, transaction_hash, true);
+  nonceBuff.copy(blockTemplate, 76, 0, 4);
+  return blockTemplate;
+};
+
+module.exports.constructNewKcnBlob = function(blockTemplate, nonceBuff) {
+  update_merkle_root_hash(80, false, blockTemplate, blockTemplate, transaction_hash3, false);
   nonceBuff.copy(blockTemplate, 76, 0, 4);
   return blockTemplate;
 };

package.json

@@ -1,7 +1,6 @@
 {
   "name": "cryptoforknote-util",
-  "version": "15.0.1",
-  "main": "cryptoforknote-util",
+  "version": "15.5.2",
   "author": {
     "name": "LucasJones",
     "email": "lucasjonesdev@hotmail.co.uk"
@@ -11,15 +10,16 @@
     "url": "https://github.com/haven-protocol-org/node-cryptoforknote-util.git"
   },
   "dependencies": {
-    "promise": "*",
-    "bindings": "*",
-    "nan": "^2.14.2",
-    "bignum": "^0.13.1",
-    "sha3": "*",
     "base58-native": "*",
-    "varuint-bitcoin": "^1.0.4",
+    "bech32": "*",
+    "bignum": "^0.13.1",
+    "bindings": "*",
+    "bitcoinjs-lib": "git+https://github.com/MoneroOcean/bitcoinjs-lib.git",
     "merkle-lib": "^2.0.10",
-    "bitcoinjs-lib": "git+https://github.com/MoneroOcean/bitcoinjs-lib.git"
+    "nan": "^2.20.0",
+    "promise": "*",
+    "sha3": "*",
+    "varuint-bitcoin": "^1.0.4"
   },
   "keywords": [
     "cryptonight",

rtm.js

@@ -1,5 +1,6 @@
 const bignum  = require('bignum');
 const base58  = require('base58-native');
+const bech32  = require('bech32');
 const bitcoin = require('bitcoinjs-lib');
 
 const diff1 = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;
@@ -148,14 +149,20 @@ function getTransactionBuffers(txs) {
 }
 
 function addressToScript(addr) {
-  const decoded = base58.decode(addr);
-  if (decoded.length != 25)  throw new Error('Invalid address length for ' + addr);
-  if (!decoded) throw new Error('Base58 decode failed for ' + addr);
+  let decoded;
+  try {
+    decoded = base58.decode(addr);
+  } catch(err) {}
+  if (!decoded || decoded.length != 25) {
+    const decoded2 = Buffer.from(bech32.bech32.fromWords(bech32.bech32.decode(addr).words.slice(1)));
+    if (decoded2.length != 20) throw new Error('Invalid address ' + addr);
+    return Buffer.concat([Buffer.from([0x0, 0x14]), decoded2]);
+  }
   const pubkey = decoded.slice(1, -4);
   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([
@@ -166,19 +173,25 @@ function createOutputTransaction(amount, payee, rewardToPool, reward, txOutputBu
   return { reward: reward - amount, rewardToPool: rewardToPool - amount };
 }
 
-function generateOutputTransactions(rpcData, poolAddress) {
-  let reward       = rpcData.coinbasevalue;
+function generateTransactionOutputs(rpcData, poolAddress) {
+  let reward       = rpcData.coinbasevalue + (rpcData.coinbasedevreward ? rpcData.coinbasedevreward.value : 0);
   let rewardToPool = reward;
   let txOutputBuffers = [];
 
+  if (rpcData.coinbasedevreward) {
+    const rewards = createTransactionOutput(rpcData.coinbasedevreward.value, null, 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;
       }
@@ -187,7 +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;
     }
@@ -195,41 +208,44 @@ 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) {
-    const witness_commitment = Buffer.from(rpcData.default_witness_commitment, 'hex');
-    txOutputBuffers.unshift(Buffer.concat([
-      packInt64LE(0),
-      varIntBuffer(witness_commitment.length),
-      witness_commitment
+  if (rpcData.default_witness_commitment) {
+    createTransactionOutput(0, null, rewardToPool, reward, txOutputBuffers, Buffer.from(rpcData.default_witness_commitment, 'hex'));
+    txOutputBuffers.push(Buffer.concat([
+      varIntBuffer(1),
+      varIntBuffer(32),
+      Buffer.alloc(32, 0)
     ]));
   }
 
-  return Buffer.concat([ varIntBuffer(txOutputBuffers.length), Buffer.concat(txOutputBuffers)]);
+  return Buffer.concat([ varIntBuffer(rpcData.default_witness_commitment ? txOutputBuffers.length - 1 : txOutputBuffers.length), Buffer.concat(txOutputBuffers)]);
 }
 
 module.exports.RtmBlockTemplate = function(rpcData, poolAddress) {
   const extraNoncePlaceholderLength = 17;
-  const coinbaseVersion = Buffer.concat([packUInt16LE(3), packUInt16LE(5)]);
+  const coinbaseVersion = rpcData.coinbasedevreward ? Buffer.concat([packUInt16LE(1), packUInt16LE(0)]) : Buffer.concat([packUInt16LE(3), packUInt16LE(5)]);
 
   const scriptSigPart1 = Buffer.concat([
     serializeNumber(rpcData.height),
-    Buffer.from(rpcData.coinbaseaux.flags, 'hex'),
+    Buffer.from(rpcData.coinbaseaux.flags ? rpcData.coinbaseaux.flags : "", 'hex'),
     serializeNumber(Date.now() / 1000 | 0),
     Buffer.from([extraNoncePlaceholderLength])
   ]);
 
   const scriptSigPart2 = serializeString('/nodeStratum/');
 
+  const is_witness = 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
@@ -242,13 +258,19 @@ 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
-    varIntBuffer(rpcData.coinbase_payload.length / 2),
-    Buffer.from(rpcData.coinbase_payload, 'hex')
+    packUInt32LE(0) // txLockTime
   ]);
 
+  if (rpcData.coinbase_payload) {
+     blob2 = Buffer.concat([
+       blob2,
+       varIntBuffer(rpcData.coinbase_payload.length / 2),
+       Buffer.from(rpcData.coinbase_payload, 'hex')
+     ]);
+  }
+
   const prev_hash = reverseBuffer(Buffer.from(rpcData.previousblockhash, 'hex')).toString('hex');
   const version = packInt32LE(rpcData.version).toString('hex');
   const curtime = packUInt32LE(rpcData.curtime).toString('hex');

src/contrib/epee/include/serialization/keyvalue_serialization_overloads.h

@@ -26,6 +26,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <set>
 #include <list>
 #include <vector>

src/cryptonote_config.h

@@ -35,4 +35,6 @@ enum BLOB_TYPE {
   BLOB_TYPE_CRYPTONOTE_XHV    = 11, // Haven
   BLOB_TYPE_CRYPTONOTE_XTA    = 12, // ITALO
   BLOB_TYPE_CRYPTONOTE_ZEPHYR = 13, // ZEPHYR
+  BLOB_TYPE_CRYPTONOTE_XLA    = 14, // XLA
+  BLOB_TYPE_CRYPTONOTE_SALVIUM= 15, // Salvium
 };

src/cryptonote_core/cryptonote_basic.h

@@ -48,7 +48,19 @@ namespace cryptonote
 
   typedef std::vector<crypto::signature> ring_signature;
 
-
+  enum salvium_transaction_type
+  {
+    UNSET = 0,
+    MINER = 1,
+    PROTOCOL = 2,
+    TRANSFER = 3,
+    CONVERT = 4,
+    BURN = 5,
+    STAKE = 6,
+    RETURN = 7,
+    MAX = 7
+  };
+  
   /* outputs */
 
   struct txout_to_script
@@ -167,6 +179,41 @@ namespace cryptonote
     END_SERIALIZE()
   };
 
+  // SALVIUM
+  struct txout_salvium_key
+  {
+    txout_salvium_key() { }
+    txout_salvium_key(const crypto::public_key &_key, const std::string &_asset_type, const uint64_t &_unlock_time) :
+      key(_key), asset_type(_asset_type), unlock_time(_unlock_time) { }
+    crypto::public_key key;
+    std::string asset_type;
+    uint64_t unlock_time;
+
+    BEGIN_SERIALIZE_OBJECT()
+      FIELD(key)
+      FIELD(asset_type)
+      VARINT_FIELD(unlock_time)
+    END_SERIALIZE()
+  };
+
+  struct txout_salvium_tagged_key
+  {
+    txout_salvium_tagged_key() { }
+    txout_salvium_tagged_key(const crypto::public_key &_key, const std::string &_asset_type, const uint64_t &_unlock_time, const crypto::view_tag &_view_tag) :
+      key(_key), asset_type(_asset_type), unlock_time(_unlock_time), view_tag(_view_tag) { }
+    crypto::public_key key;
+    std::string asset_type;
+    uint64_t unlock_time;
+    crypto::view_tag view_tag; // optimization to reduce scanning time
+
+    BEGIN_SERIALIZE_OBJECT()
+      FIELD(key)
+      FIELD(asset_type)
+      VARINT_FIELD(unlock_time)
+      FIELD(view_tag)
+    END_SERIALIZE()
+  };
+
   /* inputs */
 
   struct txin_gen
@@ -290,11 +337,28 @@ namespace cryptonote
     END_SERIALIZE()
   };
   
+  struct txin_salvium_key
+  {
+    uint64_t amount;
+    std::string asset_type;
+    std::vector<uint64_t> key_offsets;
+    crypto::key_image k_image;      // double spending protection
+
+    BEGIN_SERIALIZE_OBJECT()
+      VARINT_FIELD(amount)
+      FIELD(asset_type)
+      FIELD(key_offsets)
+      FIELD(k_image)
+    END_SERIALIZE()
+  };
+  
   typedef boost::variant<txin_gen, txin_to_script, txin_to_scripthash, txin_to_key, txin_offshore, txin_onshore, txin_xasset, txin_haven_key> txin_v;
   typedef boost::variant<txin_gen, txin_to_script, txin_to_scripthash, txin_zephyr_key> txin_zephyr_v;
+  typedef boost::variant<txin_gen, txin_to_script, txin_to_scripthash, txin_salvium_key> txin_salvium_v;
 
   typedef boost::variant<txout_to_script, txout_to_scripthash, txout_to_key, txout_to_tagged_key> txout_target_v;
   typedef boost::variant<txout_to_script, txout_to_scripthash, txout_to_key, txout_offshore, txout_xasset, txout_haven_key, txout_haven_tagged_key> txout_xhv_target_v;
+  typedef boost::variant<txout_to_script, txout_to_scripthash, txout_salvium_key, txout_salvium_tagged_key> txout_salvium_target_v;
 
   typedef boost::variant<txout_to_script, txout_to_scripthash, txout_zephyr_tagged_key> txout_stablero_target_v;
 
@@ -331,6 +395,17 @@ namespace cryptonote
     END_SERIALIZE()
   };
 
+  struct tx_out_salvium
+  {
+    uint64_t amount;
+    txout_salvium_target_v target;
+
+    BEGIN_SERIALIZE_OBJECT()
+      VARINT_FIELD(amount)
+      FIELD(target)
+    END_SERIALIZE()
+  };
+
 
   enum loki_version
   {
@@ -352,9 +427,11 @@ namespace cryptonote
 
     std::vector<txin_v> vin;
     std::vector<txin_zephyr_v> vin_zephyr;
+    std::vector<txin_salvium_v> vin_salvium;
     std::vector<tx_out> vout;
     std::vector<tx_out_xhv> vout_xhv;
     std::vector<tx_out_zephyr> vout_zephyr;
+    std::vector<tx_out_salvium> vout_salvium;
     //extra
     std::vector<uint8_t> extra;
     // Block height to use PR from
@@ -366,6 +443,23 @@ namespace cryptonote
     std::vector<uint64_t> output_unlock_times;
     std::vector<uint32_t> collateral_indices;
 
+    // SALVIUM-SPECIFIC FIELDS
+    // TX type
+    cryptonote::salvium_transaction_type tx_type;
+    // Return address
+    crypto::public_key return_address;
+    // Return TX public key
+    crypto::public_key return_pubkey;
+    // Source asset type
+    std::string source_asset_type;
+    // Destination asset type (this is only necessary for CONVERT transactions)
+    std::string destination_asset_type;
+    // Circulating supply information - already provided by Haven
+    //uint64_t amount_burnt;
+    // Slippage limit
+    uint64_t amount_slippage_limit;
+
+
     //
     // NOTE: Loki specific
     //
@@ -629,7 +723,27 @@ namespace cryptonote
         VARINT_FIELD(pricing_record_height)
         VARINT_FIELD(amount_burnt)
         VARINT_FIELD(amount_minted)
-  
+
+      } else if (blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM) {
+
+        VARINT_FIELD(version)
+        //if(version == 0 || CURRENT_TRANSACTION_VERSION < version) return false;
+        VARINT_FIELD(unlock_time)
+        FIELD(vin_salvium)
+        FIELD(vout_salvium)
+        FIELD(extra)
+        VARINT_FIELD(tx_type)
+        if (tx_type != cryptonote::salvium_transaction_type::PROTOCOL) {
+          VARINT_FIELD(amount_burnt)
+          if (tx_type != cryptonote::salvium_transaction_type::MINER) {
+            FIELD(return_address)
+            FIELD(return_pubkey)
+            FIELD(source_asset_type)
+            FIELD(destination_asset_type)
+            VARINT_FIELD(amount_slippage_limit)
+          }
+        }
+        
       } else {
   
         VARINT_FIELD(version)
@@ -722,7 +836,7 @@ namespace cryptonote
       else
       {
         ar.tag("rct_signatures");
-        if (blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? !vin_zephyr.empty() : !vin.empty())
+        if (blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM ? !vin_salvium.empty() : (blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? !vin_zephyr.empty() : !vin.empty()))
         {
           ar.begin_object();
           bool r;
@@ -730,6 +844,8 @@ namespace cryptonote
             r = rct_signatures.serialize_rctsig_base(ar, vin.size(), vout_xhv.size());
           else if (blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR)
             r = rct_signatures.serialize_rctsig_base(ar, vin_zephyr.size(), vout_zephyr.size());
+          else if (blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM)
+            r = rct_signatures.serialize_rctsig_base(ar, vin_salvium.size(), vout_salvium.size());
           else
             r = rct_signatures.serialize_rctsig_base(ar, vin.size(), vout.size());
           if (!r || !ar.stream().good()) return false;
@@ -741,6 +857,9 @@ namespace cryptonote
             if (blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR) {
               r = rct_signatures.p.serialize_rctsig_prunable(ar, rct_signatures.type, vin_zephyr.size(), vout_zephyr.size(),
                   vin_zephyr[0].type() == typeid(txin_zephyr_key) ? boost::get<txin_zephyr_key>(vin_zephyr[0]).key_offsets.size() - 1 : 0);
+            } else if (blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM) {
+              r = rct_signatures.p.serialize_rctsig_prunable(ar, rct_signatures.type, vin_salvium.size(), vout_salvium.size(),
+                  vin_salvium[0].type() == typeid(txin_salvium_key) ? boost::get<txin_salvium_key>(vin_salvium[0]).key_offsets.size() - 1 : 0);
             } else if (blob_type == BLOB_TYPE_CRYPTONOTE_XHV) {
               r = rct_signatures.p.serialize_rctsig_prunable(ar, rct_signatures.type, vin.size(), vout_xhv.size(),
                   vin.size() > 0 && vin[0].type() == typeid(txin_to_key) ? boost::get<txin_to_key>(vin[0]).key_offsets.size() - 1 :
@@ -935,6 +1054,7 @@ namespace cryptonote
     crypto::cycle cycle;
     crypto::cycle40 cycle40;
     crypto::cycle48 cycle48;
+    crypto::signature signature;
 
     BEGIN_SERIALIZE()
       VARINT_FIELD(major_version)
@@ -955,8 +1075,42 @@ namespace cryptonote
       if (blob_type == BLOB_TYPE_CRYPTONOTE_XTNC || blob_type == BLOB_TYPE_CRYPTONOTE_CUCKOO) FIELD(cycle)
       if (blob_type == BLOB_TYPE_CRYPTONOTE_TUBE) FIELD(cycle40)
       if (blob_type == BLOB_TYPE_CRYPTONOTE_XTA) FIELD(cycle48)
-      if (blob_type == BLOB_TYPE_CRYPTONOTE_XHV) FIELD(pricing_record)
-      if (blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR) FIELD_N("pricing_record", zephyr_pricing_record)
+      if (blob_type == BLOB_TYPE_CRYPTONOTE_XHV || blob_type == BLOB_TYPE_CRYPTONOTE_SAL) FIELD(pricing_record)
+      if (blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR) {
+        if (major_version >= 4)
+        {
+          FIELD_N("pricing_record", zephyr_pricing_record)
+        }
+        else if (major_version >= 3)
+        {
+          zephyr_oracle::pricing_record_v2 pr_v2;
+          if (!typename Archive<W>::is_saving())
+          {
+            FIELD(pr_v2)
+            pr_v2.write_to_pr(zephyr_pricing_record);
+          }
+          else
+          {
+            pr_v2.read_from_pr(zephyr_pricing_record);
+            FIELD(pr_v2)
+          }
+        }
+        else
+        {
+          zephyr_oracle::pricing_record_v1 pr_v1;
+          if (!typename Archive<W>::is_saving())
+          {
+            FIELD(pr_v1)
+            pr_v1.write_to_pr(zephyr_pricing_record);
+          }
+          else
+          {
+            pr_v1.read_from_pr(zephyr_pricing_record);
+            FIELD(pr_v1)
+          }
+        }
+      }
+      if (blob_type == BLOB_TYPE_CRYPTONOTE_XLA && major_version >= 13) FIELD(signature)
 
     END_SERIALIZE()
   };
@@ -966,10 +1120,11 @@ namespace cryptonote
     bytecoin_block parent_block;
 
     transaction miner_tx;
+    transaction protocol_tx;
     std::vector<crypto::hash> tx_hashes;
     mutable crypto::hash uncle = cryptonote::null_hash;
 
-    void set_blob_type(enum BLOB_TYPE bt) { miner_tx.blob_type = blob_type = bt; }
+    void set_blob_type(enum BLOB_TYPE bt) { miner_tx.blob_type = protocol_tx.blob_type = blob_type = bt; }
 
     BEGIN_SERIALIZE_OBJECT()
       FIELDS(*static_cast<block_header *>(this))
@@ -979,6 +1134,10 @@ namespace cryptonote
         FIELD_N("parent_block", sbb);
       }
       FIELD(miner_tx)
+      if (blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM)
+      {
+        FIELD(protocol_tx)
+      }
       FIELD(tx_hashes)
       if (blob_type == BLOB_TYPE_CRYPTONOTE3)
       {
@@ -1040,14 +1199,17 @@ VARIANT_TAG(binary_archive, cryptonote::txin_to_scripthash, 0x1);
 VARIANT_TAG(binary_archive, cryptonote::txin_to_key, 0x2);
 VARIANT_TAG(binary_archive, cryptonote::txin_zephyr_key, 0x2);
 VARIANT_TAG(binary_archive, cryptonote::txin_offshore, 0x3);
+VARIANT_TAG(binary_archive, cryptonote::txin_salvium_key, 0x2);
 VARIANT_TAG(binary_archive, cryptonote::txin_onshore, 0x4);
 VARIANT_TAG(binary_archive, cryptonote::txin_xasset, 0x5);
 VARIANT_TAG(binary_archive, cryptonote::txin_haven_key, 0x6);
 VARIANT_TAG(binary_archive, cryptonote::txout_to_script, 0x0);
 VARIANT_TAG(binary_archive, cryptonote::txout_to_scripthash, 0x1);
 VARIANT_TAG(binary_archive, cryptonote::txout_to_key, 0x2);
+VARIANT_TAG(binary_archive, cryptonote::txout_salvium_key, 0x2);
 VARIANT_TAG(binary_archive, cryptonote::txout_zephyr_tagged_key, 0x2);
 VARIANT_TAG(binary_archive, cryptonote::txout_to_tagged_key, 0x3);
+VARIANT_TAG(binary_archive, cryptonote::txout_salvium_tagged_key, 0x3);
 VARIANT_TAG(binary_archive, cryptonote::txout_offshore, 0x3);
 VARIANT_TAG(binary_archive, cryptonote::txout_xasset, 0x5);
 VARIANT_TAG(binary_archive, cryptonote::txout_haven_key, 0x6);

src/cryptonote_core/cryptonote_format_utils.cpp

@@ -220,8 +220,8 @@ namespace cryptonote
     {
       std::stringstream ss;
       binary_archive<true> ba(ss);
-      const size_t inputs = t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vin_zephyr.size() : t.vin.size();
-      const size_t outputs = t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vout_zephyr.size() : t.blob_type != BLOB_TYPE_CRYPTONOTE_XHV ? t.vout.size() : t.vout_xhv.size();
+      const size_t inputs  = t.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM ? t.vin_salvium.size()  : (t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vin_zephyr.size() : t.vin.size());
+      const size_t outputs = t.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM ? t.vout_salvium.size() : (t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vout_zephyr.size() : (t.blob_type != BLOB_TYPE_CRYPTONOTE_XHV ? t.vout.size() : t.vout_xhv.size()));
       bool r = tt.rct_signatures.serialize_rctsig_base(ba, inputs, outputs);
       CHECK_AND_ASSERT_MES(r, false, "Failed to serialize rct signatures base");
       cryptonote::get_blob_hash(ss.str(), hashes[1]);
@@ -236,10 +236,12 @@ namespace cryptonote
     {
       std::stringstream ss;
       binary_archive<true> ba(ss);
-      const size_t inputs = t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vin_zephyr.size() : t.vin.size();
-      const size_t outputs = t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vout_zephyr.size() : t.blob_type != BLOB_TYPE_CRYPTONOTE_XHV ? t.vout.size() : t.vout_xhv.size();
+      const size_t inputs  = t.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM ? t.vin_salvium.size()  : (t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vin_zephyr.size() : t.vin.size());
+      const size_t outputs = t.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM ? t.vout_salvium.size() : (t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vout_zephyr.size() : (t.blob_type != BLOB_TYPE_CRYPTONOTE_XHV ? t.vout.size() : t.vout_xhv.size()));
       size_t mixin;
-      if (t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR) {
+      if (t.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM) {
+        mixin = t.vin_salvium.empty() ? 0 : t.vin_salvium[0].type() == typeid(txin_salvium_key) ? boost::get<txin_salvium_key>(t.vin_salvium[0]).key_offsets.size() - 1 : 0;
+      } else if (t.blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR) {
         mixin = t.vin_zephyr.empty() ? 0 : t.vin_zephyr[0].type() == typeid(txin_zephyr_key) ? boost::get<txin_zephyr_key>(t.vin_zephyr[0]).key_offsets.size() - 1 : 0;
       } else if (t.blob_type == BLOB_TYPE_CRYPTONOTE_XHV) {
         mixin = t.vin.empty() ? 0 :
@@ -285,7 +287,11 @@ namespace cryptonote
     }
     crypto::hash tree_root_hash = get_tx_tree_hash(b);
     blob.append(reinterpret_cast<const char*>(&tree_root_hash), sizeof(tree_root_hash));
-    blob.append(tools::get_varint_data(b.tx_hashes.size()+1));
+    if (b.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM) {
+      blob.append(tools::get_varint_data(b.tx_hashes.size()+2));
+    } else {
+      blob.append(tools::get_varint_data(b.tx_hashes.size()+1));
+    }
     if (b.blob_type == BLOB_TYPE_CRYPTONOTE3) {
       blob.append(reinterpret_cast<const char*>(&b.uncle), sizeof(b.uncle));
     }
@@ -413,6 +419,12 @@ namespace cryptonote
     crypto::hash h = null_hash;
     size_t bl_sz = 0;
     get_transaction_hash(b.miner_tx, h, bl_sz);
+    if (b.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM) {
+      txs_ids.push_back(h);
+      h = null_hash;
+      bl_sz = 0;
+      get_transaction_hash(b.protocol_tx, h, bl_sz);
+    }
     txs_ids.push_back(h);
     BOOST_FOREACH(auto& th, b.tx_hashes)
       txs_ids.push_back(th);

src/ringct/rctTypes.h

@@ -87,6 +87,8 @@ namespace rct {
     typedef std::vector<key> keyV; //vector of keys
     typedef std::vector<keyV> keyM; //matrix of keys (indexed by column first)
 
+  static key null_key = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+  
     //containers For CT operations
     //if it's  representing a private ctkey then "dest" contains the secret key of the address
     // while "mask" contains a where C = aG + bH is CT pedersen commitment and b is the amount
@@ -325,6 +327,7 @@ namespace rct {
       xmr_amount txnOffshoreFee_usd = 0;
       xmr_amount txnOffshoreFee_xasset = 0;
       keyV maskSums; // contains 2 or 3 elements. 1. is the sum of masks of inputs. 2. is the sum of masks of change outputs. 3. mask of the col output.
+      key p_r;
 
       template<bool W, template <bool> class Archive>
       bool serialize_rctsig_base(Archive<W> &ar, size_t inputs, size_t outputs)
@@ -384,6 +387,8 @@ namespace rct {
           FIELDS(maskSums[2])
             ar.end_array();
         }
+        if (crypto_verify_32(p_r.bytes, null_key.bytes))
+          FIELD(p_r)
         return ar.stream().good();
       }
 

src/serialization/binary_archive.h

@@ -48,7 +48,7 @@ template <>
 struct binary_archive<false> : public binary_archive_base<std::istream, false>
 {
   explicit binary_archive(stream_type &s) : base_type(s) {
-    stream_type::streampos pos = stream_.tellg();
+    auto pos = stream_.tellg();
     stream_.seekg(0, std::ios_base::end);
     eof_pos_ = stream_.tellg();
     stream_.seekg(pos);

src/serialization/zephyr_pricing_record.h

@@ -40,16 +40,48 @@
 template <template <bool> class Archive>
 bool do_serialize(Archive<false> &ar, zephyr_oracle::pricing_record &pr, uint8_t version)
 {
-  // very basic sanity check
-  if (ar.remaining_bytes() < sizeof(zephyr_oracle::pricing_record)) {
-    ar.stream().setstate(std::ios::failbit);
-    return false;
+  if (version >= 4)
+  {
+    // very basic sanity check
+    if (ar.remaining_bytes() < sizeof(zephyr_oracle::pricing_record)) {
+      return false;
+    }
+
+    ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record), "");
+    if (!ar.good())
+      return false;
+  }
+  else if (version >= 3)
+  {
+    // very basic sanity check
+    if (ar.remaining_bytes() < sizeof(zephyr_oracle::pricing_record_v2)) {
+      return false;
+    }
+
+    zephyr_oracle::pricing_record_v2 pr_v2;
+    ar.serialize_blob(&pr_v2, sizeof(zephyr_oracle::pricing_record_v2), "");
+    if (!ar.good())
+      return false;
+
+    if (!pr_v2.write_to_pr(pr))
+      return false;
+  }
+  else
+  {
+    // very basic sanity check
+    if (ar.remaining_bytes() < sizeof(zephyr_oracle::pricing_record_v1)) {
+      return false;
+    }
+
+    zephyr_oracle::pricing_record_v1 pr_v1;
+    ar.serialize_blob(&pr_v1, sizeof(zephyr_oracle::pricing_record_v1), "");
+    if (!ar.good())
+      return false;
+
+    if (!pr_v1.write_to_pr(pr))
+      return false;
   }
 
-  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record), "");
-  if (!ar.stream().good())
-    return false;
-  
   return true;
 }
 
@@ -59,12 +91,87 @@ bool do_serialize(Archive<true> &ar, zephyr_oracle::pricing_record &pr, uint8_t
 {
   ar.begin_string();
 
-  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record), "");
-  
-  if (!ar.stream().good())
+  if (version >= 4)
+  {
+    ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record), "");
+  }
+  else if (version >= 3)
+  {
+    zephyr_oracle::pricing_record_v2 pr_v2;
+    if (!pr_v2.read_from_pr(pr))
+      return false;
+    ar.serialize_blob(&pr_v2, sizeof(zephyr_oracle::pricing_record_v2), "");
+  }
+  else
+  {
+    zephyr_oracle::pricing_record_v1 pr_v1;
+    if (!pr_v1.read_from_pr(pr))
+      return false;
+    ar.serialize_blob(&pr_v1, sizeof(zephyr_oracle::pricing_record_v1), "");
+  }
+
+  if (!ar.good())
+    return false;
+  ar.end_string();
+  return true;
+}
+
+// read
+template <template <bool> class Archive>
+bool do_serialize(Archive<false> &ar, zephyr_oracle::pricing_record_v1 &pr, uint8_t version)
+{
+  // very basic sanity check
+  if (ar.remaining_bytes() < sizeof(zephyr_oracle::pricing_record_v1)) {
+    return false;
+  }
+
+  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record_v1), "");
+  if (!ar.good())
+    return false;
+
+  return true;
+}
+
+// write
+template <template <bool> class Archive>
+bool do_serialize(Archive<true> &ar, zephyr_oracle::pricing_record_v1 &pr, uint8_t version)
+{
+  ar.begin_string();
+  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record_v1), "");
+  if (!ar.good())
+    return false;
+  ar.end_string();
+  return true;
+}
+
+// read
+template <template <bool> class Archive>
+bool do_serialize(Archive<false> &ar, zephyr_oracle::pricing_record_v2 &pr, uint8_t version)
+{
+  // very basic sanity check
+  if (ar.remaining_bytes() < sizeof(zephyr_oracle::pricing_record_v2)) {
+    return false;
+  }
+
+  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record_v2), "");
+  if (!ar.good())
+    return false;
+
+  return true;
+}
+
+// write
+template <template <bool> class Archive>
+bool do_serialize(Archive<true> &ar, zephyr_oracle::pricing_record_v2 &pr, uint8_t version)
+{
+  ar.begin_string();
+  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record_v2), "");
+  if (!ar.good())
     return false;
   ar.end_string();
   return true;
 }
 
 BLOB_SERIALIZER(zephyr_oracle::pricing_record);
+BLOB_SERIALIZER(zephyr_oracle::pricing_record_v1);
+BLOB_SERIALIZER(zephyr_oracle::pricing_record_v2);

src/zephyr_oracle/pricing_record.cpp

@@ -40,22 +40,45 @@ namespace zephyr_oracle
   {
     struct pr_serialized
     {
-      uint64_t zEPHUSD;
-      uint64_t zEPHRSV;
+      uint64_t spot;
+      uint64_t moving_average;
+      uint64_t stable;
+      uint64_t stable_ma;
+      uint64_t reserve;
+      uint64_t reserve_ma;
+      uint64_t reserve_ratio;
+      uint64_t reserve_ratio_ma;
       uint64_t timestamp;
+      std::string signature;
 
       BEGIN_KV_SERIALIZE_MAP()
-        KV_SERIALIZE(zEPHUSD)
-        KV_SERIALIZE(zEPHRSV)
+        KV_SERIALIZE(spot)
+        KV_SERIALIZE(moving_average)
+        KV_SERIALIZE(stable)
+        KV_SERIALIZE(stable_ma)
+        KV_SERIALIZE(reserve)
+        KV_SERIALIZE(reserve_ma)
+        KV_SERIALIZE(reserve_ratio)
+        KV_SERIALIZE(reserve_ratio_ma)
         KV_SERIALIZE(timestamp)
+        KV_SERIALIZE(signature)
       END_KV_SERIALIZE_MAP()
     };
   }
   
   pricing_record::pricing_record() noexcept
-    : zEPHUSD(0)
-    , zEPHRSV(0)
-    , timestamp(0) {}
+    : spot(0)
+    , moving_average(0)
+    , stable(0)
+    , stable_ma(0)
+    , reserve(0)
+    , reserve_ma(0)
+    , reserve_ratio(0)
+    , reserve_ratio_ma(0)
+    , timestamp(0)
+  {
+    std::memset(signature, 0, sizeof(signature));
+  }
 
   bool pricing_record::_load(epee::serialization::portable_storage& src, epee::serialization::section* hparent)
   {
@@ -63,52 +86,79 @@ namespace zephyr_oracle
     if (in._load(src, hparent))
     {
       // Copy everything into the local instance
-      zEPHUSD = in.zEPHUSD;
-      zEPHRSV = in.zEPHRSV;
+      spot = in.spot;
+      moving_average = in.moving_average;
+      stable = in.stable;
+      stable_ma = in.stable_ma;
+      reserve = in.reserve;
+      reserve_ma = in.reserve_ma;
+      reserve_ratio = in.reserve_ratio;
+      reserve_ratio_ma = in.reserve_ratio_ma;
       timestamp = in.timestamp;
+      for (unsigned int i = 0; i < in.signature.length(); i += 2) {
+        std::string byteString = in.signature.substr(i, 2);
+        signature[i>>1] = (char) strtol(byteString.c_str(), NULL, 16);
+      }
       return true;
     }
 
+    // Report error here?
     return false;
   }
 
   bool pricing_record::store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const
   {
-    const pr_serialized out{zEPHUSD,zEPHRSV,timestamp};
+    std::string sig_hex;
+    for (unsigned int i=0; i<64; i++) {
+      std::stringstream ss;
+      ss << std::hex << std::setw(2) << std::setfill('0') << (0xff & signature[i]);
+      sig_hex += ss.str();
+    }
+    const pr_serialized out{spot,moving_average,stable,stable_ma,reserve,reserve_ma,reserve_ratio,reserve_ratio_ma,timestamp,sig_hex};
     return out.store(dest, hparent);
   }
 
   pricing_record::pricing_record(const pricing_record& orig) noexcept
-    : zEPHUSD(orig.zEPHUSD)
-    , zEPHRSV(orig.zEPHRSV)
-    , timestamp(orig.timestamp) {}
+    : spot(orig.spot)
+    , moving_average(orig.moving_average)
+    , stable(orig.stable)
+    , stable_ma(orig.stable_ma)
+    , reserve(orig.reserve)
+    , reserve_ma(orig.reserve_ma)
+    , reserve_ratio(orig.reserve_ratio)
+    , reserve_ratio_ma(orig.reserve_ratio_ma)
+    , timestamp(orig.timestamp)
+  {
+    std::memcpy(signature, orig.signature, sizeof(signature));
+  }
 
   pricing_record& pricing_record::operator=(const pricing_record& orig) noexcept
   {
-    zEPHUSD = orig.zEPHUSD;
-    zEPHRSV = orig.zEPHRSV;
+    spot = orig.spot;
+    moving_average = orig.moving_average;
+    stable = orig.stable;
+    stable_ma = orig.stable_ma;
+    reserve = orig.reserve;
+    reserve_ma = orig.reserve_ma;
+    reserve_ratio = orig.reserve_ratio;
+    reserve_ratio_ma = orig.reserve_ratio_ma;
     timestamp = orig.timestamp;
+    ::memcpy(signature, orig.signature, sizeof(signature));
     return *this;
   }
-
-  uint64_t pricing_record::operator[](const std::string& asset_type) const
-  {
-    if (asset_type == "ZEPH") {
-      return zEPHUSD; // ZEPH spot price
-    } else if (asset_type == "ZEPHUSD") {
-      return 1000000000000; // 1
-    } else if (asset_type == "ZEPHRSV") {
-      return zEPHRSV; // ZEPHRSV spot price
-    } else {
-     CHECK_AND_ASSERT_THROW_MES(false, "Asset type doesn't exist in pricing record!");
-    }
-  }
   
   bool pricing_record::equal(const pricing_record& other) const noexcept
   {
-    return ((zEPHUSD == other.zEPHUSD) &&
-      (zEPHRSV == other.zEPHRSV) &&
-	    (timestamp == other.timestamp));
+    return ((spot == other.spot) &&
+      (moving_average == other.moving_average) &&
+      (stable == other.stable) &&
+      (stable_ma == other.stable_ma) &&
+      (reserve == other.reserve) &&
+      (reserve_ma == other.reserve_ma) &&
+      (reserve_ratio == other.reserve_ratio) &&
+      (reserve_ratio_ma == other.reserve_ratio_ma) &&
+	    (timestamp == other.timestamp) &&
+      !::memcmp(signature, other.signature, sizeof(signature)));
   }
 
   bool pricing_record::empty() const noexcept
@@ -117,6 +167,86 @@ namespace zephyr_oracle
     return (*this).equal(empty_pr);
   }
 
+  bool pricing_record::verifySignature(const std::string& public_key, const uint8_t hf_version) const
+  {
+    CHECK_AND_ASSERT_THROW_MES(!public_key.empty(), "Pricing record verification failed. NULL public key. PK Size: " << public_key.size()); // TODO: is this necessary or the one below already covers this case, meannin it will produce empty pubkey?
+
+    // extract the key
+    EVP_PKEY* pubkey;
+    BIO* bio = BIO_new_mem_buf(public_key.c_str(), public_key.size());
+    if (!bio) {
+      return false;
+    }
+    pubkey = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL);
+    BIO_free(bio);
+    CHECK_AND_ASSERT_THROW_MES(pubkey != NULL, "Pricing record verification failed. NULL public key.");
+
+    // Convert our internal 64-byte binary representation into 128-byte hex string
+    std::string sig_hex;
+    for (unsigned int i=0; i<64; i++) {
+      std::stringstream ss;
+      ss << std::hex << std::setw(2) << std::setfill('0') << (0xff & signature[i]);
+      sig_hex += ss.str();
+    }
+
+    // Build the JSON string, so that we can verify the signature
+    std::ostringstream oss;
+    oss << "{\"spot\":" << spot;
+    if (hf_version <= 4) {
+      oss << ",\"moving_average\":" << moving_average;
+    }
+    oss << ",\"timestamp\":" << timestamp;
+    oss << "}";
+    std::string message = oss.str();
+
+    // Create a verify digest from the message
+    EVP_MD_CTX *ctx = EVP_MD_CTX_create();
+    int ret = 0;
+    if (ctx) {
+      ret = EVP_DigestVerifyInit(ctx, NULL, EVP_sha256(), NULL, pubkey);
+      if (ret == 1) {
+        ret = EVP_DigestVerifyUpdate(ctx, message.data(), message.length());
+        if (ret == 1) {
+          ret = EVP_DigestVerifyFinal(ctx, (const unsigned char *)signature, 64);
+        }
+      }
+    }
+
+    // Cleanup the context we created
+    EVP_MD_CTX_destroy(ctx);
+    // Cleanup the openssl stuff
+    EVP_PKEY_free(pubkey);
+
+    if (ret == 1)
+      return true;
+
+    // Get the errors from OpenSSL
+    // ERR_print_errors_fp (stderr);
+
+    return false;
+  }
+
+  bool pricing_record::has_missing_rates(const uint8_t hf_version) const noexcept
+  {
+    bool missing_rates = (spot == 0) || (moving_average == 0) || (stable == 0) || (stable_ma == 0) || (reserve == 0) || (reserve_ma == 0);
+    if (hf_version <= 3) {
+      return missing_rates;
+    } else if (hf_version <= 4) {
+      return missing_rates || (reserve_ratio == 0);
+    }
+    return missing_rates || (reserve_ratio == 0) || (reserve_ratio_ma == 0);
+  }
+
+  bool pricing_record::has_essential_rates(const uint8_t hf_version) const noexcept
+  {
+    bool essential_rates = (spot != 0) && (stable != 0) && (reserve != 0);
+    if (hf_version <= 3) {
+      return essential_rates;
+    }
+    return essential_rates && (reserve_ratio != 0);
+  }
+
+  // overload for pr validation for block
   bool pricing_record::valid(uint32_t hf_version, uint64_t bl_timestamp, uint64_t last_bl_timestamp) const 
   {
     if (hf_version < 3) {
@@ -126,16 +256,31 @@ namespace zephyr_oracle
 
     if (this->empty())
         return true;
-  
+
+    if (this->has_missing_rates(hf_version)) {
+      if (hf_version < 4 || !this->has_essential_rates(hf_version)) {
+        LOG_ERROR("Pricing record has missing rates.");
+        return false;
+      }
+    }
+
+    std::string const MAINNET_ORACLE_PUBLIC_KEY = "-----BEGIN PUBLIC KEY-----\n"
+    "MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAO5hVuc6ylYMbj3WhqOMoAcJ0SD4e3zW\n"
+    "edsUmhQeYwBkelAaFyxhX4ZotP+b/cFr2mX5iuND1znEnMZkyg+YmtkCAwEAAQ==\n"
+    "-----END PUBLIC KEY-----\n";
+
+    if (!verifySignature(MAINNET_ORACLE_PUBLIC_KEY, hf_version)) {
+      LOG_ERROR("Invalid pricing record signature.");
+      return false;
+    }
+
     // validate the timestmap
     if (this->timestamp > bl_timestamp + PRICING_RECORD_VALID_TIME_DIFF_FROM_BLOCK) {
       LOG_ERROR("Pricing record timestamp is too far in the future.");
       return false;
     }
 
-    
-
-    if (this->timestamp <= last_bl_timestamp - PRICING_RECORD_VALID_TIME_DIFF_FROM_BLOCK) {
+    if (this->timestamp <= last_bl_timestamp) {
       LOG_ERROR("Pricing record timestamp: " << this->timestamp << ", block timestamp: " << bl_timestamp);
       LOG_ERROR("Pricing record timestamp is too old.");
       return false;
@@ -144,3 +289,4 @@ namespace zephyr_oracle
     return true;
   }
 }
+

src/zephyr_oracle/pricing_record.h

@@ -57,15 +57,40 @@ namespace epee
 
 namespace zephyr_oracle
 {
+  #pragma pack(push, 1)
+  POD_CLASS pricing_record_pre {
+    uint64_t zEPHUSD;
+    uint64_t zEPHRSV;
+    uint64_t timestamp;
+  };
+  POD_CLASS pricing_record_pre_v2 {
+    uint64_t spot;
+    uint64_t moving_average;
+    uint64_t stable;
+    uint64_t stable_ma;
+    uint64_t reserve;
+    uint64_t reserve_ma;
+    uint64_t timestamp;
+    unsigned char signature[64];
+  };
+  #pragma pack(pop)
   class pricing_record
   {
 
     public:
 
       // Fields 
-      uint64_t zEPHUSD;
-      uint64_t zEPHRSV;
+      uint64_t spot;
+      uint64_t moving_average;
+      uint64_t stable;
+      uint64_t stable_ma;
+      uint64_t reserve;
+      uint64_t reserve_ma;
+      uint64_t reserve_ratio;
+      uint64_t reserve_ratio_ma;
       uint64_t timestamp;
+      unsigned char signature[64];
+
       // Default c'tor
       pricing_record() noexcept;
       //! Load from epee p2p format
@@ -76,6 +101,9 @@ namespace zephyr_oracle
       ~pricing_record() = default;
       bool equal(const pricing_record& other) const noexcept;
       bool empty() const noexcept;
+      bool verifySignature(const std::string& public_key, const uint8_t hf_version) const;
+      bool has_missing_rates(const uint8_t hf_version) const noexcept;
+      bool has_essential_rates(const uint8_t hf_version) const noexcept;
       bool valid(uint32_t hf_version, uint64_t bl_timestamp, uint64_t last_bl_timestamp) const;
 
       pricing_record& operator=(const pricing_record& orig) noexcept;
@@ -92,4 +120,76 @@ namespace zephyr_oracle
    return !a.equal(b);
   }
 
+  class pricing_record_v1
+  {
+
+  public:
+    uint64_t zEPHUSD;
+    uint64_t zEPHRSV;
+    uint64_t timestamp;
+
+    bool write_to_pr(zephyr_oracle::pricing_record &pr)
+    {
+      pr.spot = 0;
+      pr.moving_average = 0;
+      pr.stable = 0;
+      pr.stable_ma = 0;
+      pr.reserve = 0;
+      pr.reserve_ma = 0;
+      pr.timestamp = 0;
+      std::memset(pr.signature, 0, sizeof(zephyr_oracle::pricing_record::signature));
+      return true;
+    };
+
+    bool read_from_pr(zephyr_oracle::pricing_record &pr)
+    {
+      zEPHUSD = 0;
+      zEPHRSV = 0;
+      timestamp = 0;
+      return true;
+    };
+  };
+
+  class pricing_record_v2
+  {
+
+  public:
+    uint64_t spot;
+    uint64_t moving_average;
+    uint64_t stable;
+    uint64_t stable_ma;
+    uint64_t reserve;
+    uint64_t reserve_ma;
+    uint64_t timestamp;
+    unsigned char signature[64];
+
+    bool write_to_pr(zephyr_oracle::pricing_record &pr)
+    {
+      pr.spot = spot;
+      pr.moving_average = moving_average;
+      pr.stable = stable;
+      pr.stable_ma = stable_ma;
+      pr.reserve = reserve;
+      pr.reserve_ma = reserve_ma;
+      pr.reserve_ratio = 0;
+      pr.reserve_ratio_ma = 0;
+      pr.timestamp = timestamp;
+      std::memcpy(pr.signature, signature, sizeof(pr.signature));
+      return true;
+    };
+
+    bool read_from_pr(zephyr_oracle::pricing_record &pr)
+    {
+      spot = pr.spot;
+      moving_average = pr.moving_average;
+      stable = pr.stable;
+      stable_ma = pr.stable_ma;
+      reserve = pr.reserve;
+      reserve_ma = pr.reserve_ma;
+      timestamp = pr.timestamp;
+      std::memcpy(signature, pr.signature, sizeof(signature));
+      return true;
+    };
+  };
+
 } // oracle