Added SAL support

binding.gyp

@@ -7,6 +7,7 @@
                 "src/cryptonote_core/cryptonote_format_utils.cpp",
                 "src/offshore/pricing_record.cpp",
                 "src/zephyr_oracle/pricing_record.cpp",
+                "src/salvium_oracle/pricing_record.cpp",
                 "src/crypto/tree-hash.c",
                 "src/crypto/crypto.cpp",
                 "src/crypto/crypto-ops.c",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cryptoforknote-util",
-  "version": "15.5.0",
+  "version": "15.5.8",
   "author": {
     "name": "LucasJones",
     "email": "lucasjonesdev@hotmail.co.uk"

src/cryptonote_core/cryptonote_basic.h

@@ -17,6 +17,7 @@
 #include "serialization/crypto.h"
 #include "serialization/pricing_record.h"
 #include "serialization/zephyr_pricing_record.h"
+#include "serialization/salvium_pricing_record.h"
 #include "serialization/keyvalue_serialization.h" // eepe named serialization
 #include "string_tools.h"
 #include "cryptonote_config.h"
@@ -28,6 +29,7 @@
 #include "cryptonote_protocol/blobdatatype.h"
 #include "offshore/pricing_record.h"
 #include "zephyr_oracle/pricing_record.h"
+#include "salvium_oracle/pricing_record.h"
 
 
 namespace cryptonote
@@ -727,15 +729,15 @@ namespace cryptonote
       } else if (blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM) {
 
         VARINT_FIELD(version)
-        if(version == 0 || CURRENT_TRANSACTION_VERSION < version) return false;
+        //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 (type != cryptonote::salvium_transaction_type::PROTOCOL) {
+        if (tx_type != cryptonote::salvium_transaction_type::PROTOCOL) {
           VARINT_FIELD(amount_burnt)
-          if (type != cryptonote::salvium_transaction_type::MINER) {
+          if (tx_type != cryptonote::salvium_transaction_type::MINER) {
             FIELD(return_address)
             FIELD(return_pubkey)
             FIELD(source_asset_type)
@@ -836,7 +838,7 @@ 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;
@@ -844,6 +846,8 @@ 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;
@@ -855,6 +859,9 @@ 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 :
@@ -1046,6 +1053,7 @@ namespace cryptonote
     uint64_t nonce8;
     offshore::pricing_record pricing_record;
     zephyr_oracle::pricing_record zephyr_pricing_record;
+    salvium_oracle::pricing_record salvium_pricing_record;
     crypto::cycle cycle;
     crypto::cycle40 cycle40;
     crypto::cycle48 cycle48;
@@ -1071,7 +1079,8 @@ namespace cryptonote
       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) {
+      else if (blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM) FIELD(salvium_pricing_record)
+      else if (blob_type == BLOB_TYPE_CRYPTONOTE_ZEPHYR) {
         if (major_version >= 4)
         {
           FIELD_N("pricing_record", zephyr_pricing_record)

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_SALVIUM ? t.vin_salvium.size() : BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vin_zephyr.size() : t.vin.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();
+      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]);
@@ -236,8 +236,8 @@ namespace cryptonote
     {
       std::stringstream ss;
       binary_archive<true> ba(ss);
-      const size_t inputs = t.blob_type == BLOB_TYPE_CRYPTONOTE_SALVIUM ? t.vin_salvium.size() : BLOB_TYPE_CRYPTONOTE_ZEPHYR ? t.vin_zephyr.size() : t.vin.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();
+      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_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;

src/salvium_oracle/asset_types.h

@@ -0,0 +1,77 @@
+// Copyright (c) 2021, Haven Protocol
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+#include <string>
+#include <vector>
+
+namespace salvium_oracle {
+
+  const std::vector<std::string> ASSET_TYPES = {"SAL", "VSD", "BURN"};
+
+  class asset_type_counts
+  {
+
+    public:
+
+      // Fields 
+      uint64_t SAL;
+      uint64_t VSD;
+      uint64_t BURN;
+
+      asset_type_counts() noexcept
+        : SAL(0)
+        , VSD(0)
+        , BURN(0)
+      {
+      }
+
+      uint64_t operator[](const std::string asset_type) const noexcept
+      {
+        if (asset_type == "SAL") {
+          return SAL;
+        } else if (asset_type == "VSD") {
+          return VSD;
+        } else if (asset_type == "BURN") {
+          return BURN;
+        }
+
+        return 0;
+      }
+
+      void add(const std::string asset_type, const uint64_t val)
+      {
+        if (asset_type == "SAL") {
+          SAL += val;
+        } else if (asset_type == "VSD") {
+          VSD += val;
+        } else if (asset_type == "BURN") {
+          BURN += val;
+        }
+      }
+  };
+}

src/salvium_oracle/pricing_record.cpp

@@ -0,0 +1,316 @@
+// Copyright (c) 2019, Haven Protocol
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Portions of this code based upon code Copyright (c) 2019, The Monero Project
+
+#include <boost/multiprecision/cpp_int.hpp>
+#include "pricing_record.h"
+
+#include "serialization/keyvalue_serialization.h"
+#include "storages/portable_storage.h"
+
+#include "string_tools.h"
+namespace salvium_oracle
+{
+
+  namespace
+  {
+    struct asset_data_serialized
+    {
+      std::string asset_type;
+      uint64_t spot_price;
+      uint64_t ma_price;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(asset_type)
+        KV_SERIALIZE(spot_price)
+        KV_SERIALIZE(ma_price)
+      END_KV_SERIALIZE_MAP()
+    };
+
+    struct supply_data_serialized
+    {
+      uint64_t SAL;
+      uint64_t VSD;
+      
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(SAL)
+        KV_SERIALIZE(VSD)
+      END_KV_SERIALIZE_MAP()
+    };
+
+    struct pr_serialized
+    {
+      uint64_t pr_version;
+      uint64_t height;
+      supply_data supply;
+      std::vector<asset_data> assets;
+      uint64_t timestamp;
+      std::string signature;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(pr_version)
+        KV_SERIALIZE(height)
+        KV_SERIALIZE(supply)
+        KV_SERIALIZE(assets)
+        KV_SERIALIZE(timestamp)
+        KV_SERIALIZE(signature)
+      END_KV_SERIALIZE_MAP()
+    };
+  }
+  
+  pricing_record::pricing_record() noexcept
+    : pr_version(0)
+    , height(0)
+    , supply()
+    , assets()
+    , timestamp(0)
+    , signature()
+  {
+  }
+
+  pricing_record::~pricing_record() noexcept
+  {
+  }
+  
+  bool supply_data::_load(epee::serialization::portable_storage& src, epee::serialization::section* hparent)
+  {
+    supply_data_serialized in{};
+    if (in._load(src, hparent))
+    {
+      // Copy everything into the local instance
+      sal = in.SAL;
+      vsd = in.VSD;
+      return true;
+    }
+    // Report error here?
+    return false;
+  }
+
+  bool supply_data::store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const
+  {
+    const supply_data_serialized out{sal, vsd};
+    return out.store(dest, hparent);
+  }
+  
+  bool asset_data::_load(epee::serialization::portable_storage& src, epee::serialization::section* hparent)
+  {
+    asset_data_serialized in{};
+    if (in._load(src, hparent))
+    {
+      // Copy everything into the local instance
+      asset_type = in.asset_type;
+      spot_price = in.spot_price;
+      ma_price   = in.ma_price;
+      return true;
+    }
+    // Report error here?
+    return false;
+  }
+
+  bool asset_data::store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const
+  {
+    const asset_data_serialized out{asset_type, spot_price, ma_price};
+    return out.store(dest, hparent);
+  }
+  
+  bool pricing_record::_load(epee::serialization::portable_storage& src, epee::serialization::section* hparent)
+  {
+    pr_serialized in{};
+    if (in._load(src, hparent))
+    {
+      // Copy everything into the local instance
+      pr_version = in.pr_version;
+      height = in.height;
+      supply = in.supply;
+      assets = in.assets;
+      timestamp = in.timestamp;
+
+      // Signature arrives in HEX format, but needs to be used in BINARY format - convert it here
+      signature.resize(0);
+      assert(in.signature.size()%2 == 0);
+      signature.reserve(in.signature.size() >> 1);
+      for (unsigned int i = 0; i < in.signature.size(); i += 2) {
+        std::string byteString = in.signature.substr(i, 2);
+        signature.emplace_back((uint8_t)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
+  {
+    std::string sig_hex;
+    for (size_t i=0; i<signature.size(); ++i) {
+      std::stringstream ss;
+      ss << std::hex << std::setw(2) << std::setfill('0') << (0xff & signature.at(i));
+      sig_hex += ss.str();
+    }
+    const pr_serialized out{pr_version, height, supply, assets, timestamp, sig_hex};
+    return out.store(dest, hparent);
+  }
+  
+  pricing_record::pricing_record(const pricing_record& orig) noexcept
+    : pr_version(orig.pr_version)
+    , height(orig.height)
+    , supply(orig.supply)
+    , assets(orig.assets)
+    , timestamp(orig.timestamp)
+    , signature(orig.signature)
+  {
+  }
+
+  pricing_record& pricing_record::operator=(const pricing_record& orig) noexcept
+  {
+    pr_version = orig.pr_version;
+    height = orig.height;
+    supply = orig.supply;
+    assets = orig.assets;
+    timestamp = orig.timestamp;
+    signature = orig.signature;
+    return *this;
+  }
+
+  uint64_t pricing_record::operator[](const std::string& asset_type) const
+  {
+    for (const auto& asset: assets) {
+      if (asset.asset_type != asset_type) continue;
+      return asset.spot_price;
+    }
+    return 0;
+  }
+  
+  bool pricing_record::equal(const pricing_record& other) const noexcept
+  {
+    return ((pr_version == other.pr_version) &&
+            (height == other.height) &&
+            (supply == other.supply) &&
+            (assets == other.assets) &&
+            (timestamp == other.timestamp) &&
+            (signature == other.signature));
+  }
+
+  bool pricing_record::empty() const noexcept
+  {
+    const pricing_record empty_pr = salvium_oracle::pricing_record();
+    return (*this).equal(empty_pr);
+  }
+
+  bool pricing_record::verifySignature(const std::string& public_key) const
+  {
+    CHECK_AND_ASSERT_THROW_MES(!public_key.empty(), "Pricing record verification failed. NULL public key. PK Size: " << public_key.size());
+
+    // 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.");
+
+    // Build the JSON string, so that we can verify the signature
+    std::ostringstream oss;
+    oss << "{\"pr_version\":" << pr_version;
+    oss << ",\"height\":" << height;
+    oss << ",\"supply\":{\"SAL\":" << supply.sal <<",\"VSD\":" << supply.vsd << "}";
+    oss << ",\"assets\":[";
+    bool first = true;
+    for (const auto& asset: assets) {
+      if (first)
+        first=false;
+      else
+        oss << ",";
+      oss << "{\"asset_type\":\"" << asset.asset_type << "\",\"spot_price\":" << asset.spot_price << ",\"ma_price\":" << asset.ma_price << "}";
+    }
+    oss << "]";
+    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.data(), signature.size());
+        }
+      }
+    }
+
+    // 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;
+  }
+
+  // overload for pr validation for block
+  bool pricing_record::valid(cryptonote::network_type nettype, uint32_t hf_version, uint64_t bl_timestamp, uint64_t last_bl_timestamp) const 
+  {
+    if (hf_version < HF_VERSION_SLIPPAGE_YIELD) {
+      if (!this->empty())
+        return false;
+    }
+
+    if (this->empty())
+        return true;
+
+    if (!verifySignature(get_config(nettype).ORACLE_PUBLIC_KEY)) {
+      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) {
+      LOG_ERROR("Pricing record timestamp: " << this->timestamp << ", block timestamp: " << bl_timestamp);
+      LOG_ERROR("Pricing record timestamp is too old.");
+      return false;
+    }
+
+    return true;
+  }
+}

src/salvium_oracle/pricing_record.h

@@ -0,0 +1,159 @@
+// Copyright (c) 2019, Haven Protocol
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Portions of this code based upon code Copyright (c) 2019, The Monero Project
+
+#pragma once
+#include "common/pod-class.h"
+
+#include <openssl/bio.h>
+#include <openssl/crypto.h>
+#include <openssl/ecdsa.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/pem.h>
+#include <openssl/rsa.h>
+#include <openssl/ssl.h>
+
+#include <cstdint>
+#include <string>
+#include <cstring>
+
+#include "cryptonote_config.h"
+#include "crypto/hash.h"
+
+namespace epee
+{
+  namespace serialization
+  {
+    class portable_storage;
+    struct section;
+  }
+}
+
+namespace salvium_oracle
+{
+  #pragma pack(push, 1)
+  POD_CLASS pricing_record_pre {
+    uint64_t pr_version;
+    uint64_t price;
+    uint64_t timestamp;
+  };
+  #pragma pack(pop)
+
+  struct supply_data {
+    uint64_t sal;
+    uint64_t vsd;
+
+    //! Load from epee p2p format
+    bool _load(epee::serialization::portable_storage& src, epee::serialization::section* hparent);
+    //! Store in epee p2p format
+    bool store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const;
+
+    BEGIN_SERIALIZE_OBJECT()
+      VARINT_FIELD(sal)
+      VARINT_FIELD(vsd)
+    END_SERIALIZE()
+  };
+
+  inline bool operator==(const supply_data& a, const supply_data& b) noexcept
+  {
+    return (a.sal == b.sal &&
+            a.vsd == b.vsd);
+  }
+  
+  struct asset_data {
+    std::string asset_type;
+    uint64_t spot_price;
+    uint64_t ma_price;
+
+    //! Load from epee p2p format
+    bool _load(epee::serialization::portable_storage& src, epee::serialization::section* hparent);
+    //! Store in epee p2p format
+    bool store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const;
+
+    BEGIN_SERIALIZE_OBJECT()
+      FIELD(asset_type)
+      VARINT_FIELD(spot_price)
+      VARINT_FIELD(ma_price)
+    END_SERIALIZE()
+  };
+  
+  inline bool operator==(const asset_data& a, const asset_data& b) noexcept
+  {
+    return (a.asset_type == b.asset_type &&
+            a.spot_price == b.spot_price &&
+            a.ma_price == b.ma_price);
+  }
+
+  struct pricing_record
+  {
+    // Fields 
+    uint64_t pr_version;
+    uint64_t height;
+    supply_data supply; 
+    std::vector<asset_data> assets;
+    uint64_t timestamp;
+    std::vector<uint8_t> signature;
+
+    // Default c'tor
+    pricing_record() noexcept;
+    //! Load from epee p2p format
+    bool _load(epee::serialization::portable_storage& src, epee::serialization::section* hparent);
+    //! Store in epee p2p format
+    bool store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const;
+    pricing_record(const pricing_record& orig) noexcept;
+    ~pricing_record() noexcept;
+    bool equal(const pricing_record& other) const noexcept;
+    bool empty() const noexcept;
+    bool verifySignature(const std::string& public_key) const;
+    bool valid(cryptonote::network_type nettype, uint32_t hf_version, uint64_t bl_timestamp, uint64_t last_bl_timestamp) const;
+
+    pricing_record& operator=(const pricing_record& orig) noexcept;
+    uint64_t operator[](const std::string& asset_type) const;
+
+    BEGIN_SERIALIZE_OBJECT()
+      VARINT_FIELD(pr_version)
+      VARINT_FIELD(height)
+      FIELD(supply)
+      FIELD(assets)
+      VARINT_FIELD(timestamp)
+      FIELD(signature)
+    END_SERIALIZE()
+  };
+
+  inline bool operator==(const pricing_record& a, const pricing_record& b) noexcept
+  {
+   return a.equal(b);
+  }
+  
+  inline bool operator!=(const pricing_record& a, const pricing_record& b) noexcept
+  {
+   return !a.equal(b);
+  }
+
+} // salvium_oracle

src/serialization/salvium_pricing_record.h

@@ -0,0 +1,168 @@
+// Copyright (c) 2019, Haven Protocol
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
+
+#pragma once
+
+#include <vector>
+
+#include "serialization.h"
+#include "salvium_oracle/pricing_record.h"
+#include "cryptonote_config.h"
+
+// read
+template <template <bool> class Archive>
+bool do_serialize(Archive<false> &ar, salvium_oracle::supply_data &sd, uint8_t version)
+{
+  ar.serialize_varint(sd.sal);
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(sd.vsd);
+  if (!ar.good())
+    return false;
+  return true;
+}
+
+// write
+template <template <bool> class Archive>
+bool do_serialize(Archive<true> &ar, salvium_oracle::supply_data &sd, uint8_t version)
+{
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(sd.sal);
+  ar.serialize_varint(sd.vsd);
+  if (!ar.good())
+    return false;
+  return true;
+}
+
+// read
+template <template <bool> class Archive>
+bool do_serialize(Archive<false> &ar, salvium_oracle::asset_data &ad, uint8_t version)
+{
+  ar.serialize_string(ad.asset_type);
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(ad.spot_price);
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(ad.ma_price);
+  if (!ar.good())
+    return false;
+  return true;
+}
+
+// write
+template <template <bool> class Archive>
+bool do_serialize(Archive<true> &ar, salvium_oracle::asset_data &ad, uint8_t version)
+{
+  if (!ar.good())
+    return false;
+  ar.serialize_string(ad.asset_type);
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(ad.spot_price);
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(ad.ma_price);
+  if (!ar.good())
+    return false;
+  return true;
+}
+
+// read
+template <template <bool> class Archive>
+bool do_serialize(Archive<false> &ar, salvium_oracle::pricing_record &pr, uint8_t version)
+{
+  // very basic sanity checks
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(pr.pr_version);
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(pr.height);
+  if (!ar.good())
+    return false;
+  if (!do_serialize(ar, pr.supply, version))
+    return false;
+  /*
+  // The next line should never do anything, but better safe than sorry
+  pr.asset_data.empty();
+  size_t asset_count;
+  ar.begin_array(asset_count);
+  if (!ar.good())
+    return false;
+  for (size_t idx=0; idx<asset_count; idx++) {
+    if (idx > 0) ar.delimit_array();
+    asset_data ad;
+    if (!do_serialize(ar, ad, version))
+      return false;
+    pr.asset_data.emplace_back(ad);
+  }
+  ar.end_array();
+  */
+  if (!do_serialize_container(ar, pr.assets))
+    return false;
+  ar.serialize_varint(pr.timestamp);
+  if (!ar.good())
+    return false;
+  if (!do_serialize_container(ar, pr.signature))
+    return false;
+  return true;
+}
+
+// write
+template <template <bool> class Archive>
+bool do_serialize(Archive<true> &ar, salvium_oracle::pricing_record &pr, uint8_t version)
+{
+  // very basic sanity checks
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(pr.pr_version);
+  if (!ar.good())
+    return false;
+  ar.serialize_varint(pr.height);
+  if (!ar.good())
+    return false;
+  if (!do_serialize(ar, pr.supply, version))
+    return false;
+  if (!do_serialize_container(ar, pr.assets))
+    return false;
+  ar.serialize_varint(pr.timestamp);
+  if (!ar.good())
+    return false;
+  pr.signature.empty();
+  if (!do_serialize_container(ar, pr.signature))
+    return false;
+  return true;
+}
+
+//BLOB_SERIALIZER(salvium_oracle::supply_data);
+//BLOB_SERIALIZER(salvium_oracle::asset_data);
+//BLOB_SERIALIZER(salvium_oracle::pricing_record);