diff --git a/CMakeLists.txt b/CMakeLists.txt
index 967f5007..0171add3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@ option(WITH_ARGON2          "Enable Argon2 algorithms family" ON)
 option(WITH_ASTROBWT        "Enable AstroBWT algorithms family" ON)
 option(WITH_KAWPOW          "Enable KawPow algorithms family" ON)
 option(WITH_HTTP            "Enable HTTP protocol support (client/server)" ON)
-option(WITH_DEBUG_LOG       "Enable debug log output" ON)
+option(WITH_DEBUG_LOG       "Enable debug log output" OFF)
 option(WITH_TLS             "Enable OpenSSL support" ON)
 option(WITH_ASM             "Enable ASM PoW implementations" ON)
 option(WITH_MSR             "Enable MSR mod & 1st-gen Ryzen fix" ON)
diff --git a/src/backend/common/WorkerJob.h b/src/backend/common/WorkerJob.h
index cf664f87..8ff3ccdc 100644
--- a/src/backend/common/WorkerJob.h
+++ b/src/backend/common/WorkerJob.h
@@ -85,9 +85,10 @@ public:
     }
 
 
+    inline int32_t nonceOffset() const { return currentJob().nonceOffset(); }
+    inline size_t nonceSize() const { return currentJob().nonceSize(); }
+
 private:
-    inline int32_t nonceOffset() const  { return currentJob().nonceOffset(); }
-    inline size_t nonceSize() const     { return currentJob().nonceSize(); }
     inline uint64_t nonceMask() const     { return m_nonce_mask[index()]; }
 
     inline void save(const Job &job, uint32_t reserveCount, Nonce::Backend backend)
diff --git a/src/backend/cpu/CpuWorker.cpp b/src/backend/cpu/CpuWorker.cpp
index 9ffc5ea5..becc329b 100644
--- a/src/backend/cpu/CpuWorker.cpp
+++ b/src/backend/cpu/CpuWorker.cpp
@@ -274,10 +274,16 @@ void xmrig::CpuWorker<N>::start()
 
             bool valid = true;
 
+            uint8_t miner_signature_saved[64];
+            uint8_t* miner_signature_ptr = m_job.blob() + m_job.nonceOffset() + m_job.nonceSize();
+
 #           ifdef XMRIG_ALGO_RANDOMX
             if (job.algorithm().family() == Algorithm::RANDOM_X) {
                 if (first) {
                     first = false;
+                    if (job.hasMinerSignature()) {
+                        job.generateMinerSignature(m_job.currentJob().timestamp() + *m_job.nonce(), miner_signature_ptr);
+                    }
                     randomx_calculate_hash_first(m_vm, tempHash, m_job.blob(), job.size());
                 }
 
@@ -285,6 +291,10 @@ void xmrig::CpuWorker<N>::start()
                     break;
                 }
 
+                if (job.hasMinerSignature()) {
+                    memcpy(miner_signature_saved, miner_signature_ptr, sizeof(miner_signature_saved));
+                    job.generateMinerSignature(m_job.currentJob().timestamp() + *m_job.nonce(), miner_signature_ptr);
+                }
                 randomx_calculate_hash_next(m_vm, tempHash, m_job.blob(), job.size(), m_hash);
             }
             else
@@ -319,7 +329,7 @@ void xmrig::CpuWorker<N>::start()
                     else
 #                   endif
                     if (value < job.target()) {
-                        JobResults::submit(job, current_job_nonces[i], m_hash + (i * 32));
+                        JobResults::submit(job, current_job_nonces[i], m_hash + (i * 32), miner_signature_saved);
                     }
                 }
                 m_count += N;
diff --git a/src/base/crypto/Coin.cpp b/src/base/crypto/Coin.cpp
index 33115484..a70ca075 100644
--- a/src/base/crypto/Coin.cpp
+++ b/src/base/crypto/Coin.cpp
@@ -56,7 +56,8 @@ static CoinName const coin_names[] = {
     { "ravencoin",  Coin::RAVEN   },
     { "raven",      Coin::RAVEN   },
     { "rvn",        Coin::RAVEN   },
-    { "conceal",    Coin::CONCEAL }
+    { "conceal",    Coin::CONCEAL },
+    { "wownero",    Coin::WOWNERO }
 };
 
 
@@ -85,6 +86,9 @@ xmrig::Algorithm::Id xmrig::Coin::algorithm(uint8_t blobVersion) const
     case CONCEAL:
         return Algorithm::CN_CCX;
 
+    case WOWNERO:
+        return Algorithm::RX_WOW;
+
     case INVALID:
         break;
     }
diff --git a/src/base/crypto/Coin.h b/src/base/crypto/Coin.h
index 084672fc..985335cb 100644
--- a/src/base/crypto/Coin.h
+++ b/src/base/crypto/Coin.h
@@ -44,7 +44,8 @@ public:
         DERO,
         KEVA,
         RAVEN,
-        CONCEAL
+        CONCEAL,
+        WOWNERO
     };
 
 
diff --git a/src/base/kernel/config/BaseTransform.cpp b/src/base/kernel/config/BaseTransform.cpp
index 3cd48d5a..1036ae29 100644
--- a/src/base/kernel/config/BaseTransform.cpp
+++ b/src/base/kernel/config/BaseTransform.cpp
@@ -181,6 +181,9 @@ void xmrig::BaseTransform::transform(rapidjson::Document &doc, int key, const ch
     case IConfig::PasswordKey: /* --pass */
         return add(doc, Pools::kPools, Pool::kPass, arg);
 
+    case IConfig::SpendSecretKey: /* --spend-secret-key */
+        return add(doc, Pools::kPools, Pool::kSpendSecretKey, arg);
+
     case IConfig::RigIdKey: /* --rig-id */
         return add(doc, Pools::kPools, Pool::kRigId, arg);
 
diff --git a/src/base/kernel/interfaces/IConfig.h b/src/base/kernel/interfaces/IConfig.h
index ec3d8510..d1260afa 100644
--- a/src/base/kernel/interfaces/IConfig.h
+++ b/src/base/kernel/interfaces/IConfig.h
@@ -84,6 +84,7 @@ public:
         SubmitToOriginKey    = 1052,
         DnsIPv6Key           = 1053,
         DnsTtlKey            = 1054,
+        SpendSecretKey       = 1055,
 
         // xmrig common
         CPUPriorityKey       = 1021,
diff --git a/src/base/net/stratum/DaemonClient.cpp b/src/base/net/stratum/DaemonClient.cpp
index 5bfe095c..97a0d219 100644
--- a/src/base/net/stratum/DaemonClient.cpp
+++ b/src/base/net/stratum/DaemonClient.cpp
@@ -37,6 +37,7 @@
 #include "base/net/stratum/SubmitResult.h"
 #include "base/tools/Cvt.h"
 #include "base/tools/Timer.h"
+#include "base/tools/cryptonote/Signatures.h"
 #include "net/JobResult.h"
 
 
@@ -94,11 +95,11 @@ bool xmrig::DaemonClient::isTLS() const
 
 int64_t xmrig::DaemonClient::submit(const JobResult &result)
 {
-    if (result.jobId != (m_blocktemplate.data() + m_blocktemplate.size() - 32)) {
+    if (result.jobId != (m_blocktemplateStr.data() + m_blocktemplateStr.size() - 32)) {
         return -1;
     }
 
-    char *data = (m_apiVersion == API_DERO) ? m_blockhashingblob.data() : m_blocktemplate.data();
+    char *data = (m_apiVersion == API_DERO) ? m_blockhashingblob.data() : m_blocktemplateStr.data();
 
 #   ifdef XMRIG_PROXY_PROJECT
     memcpy(data + 78, result.nonce, 8);
@@ -106,16 +107,21 @@ int64_t xmrig::DaemonClient::submit(const JobResult &result)
     Cvt::toHex(data + 78, 8, reinterpret_cast<const uint8_t *>(&result.nonce), 4);
 #   endif
 
+    if (m_blocktemplate.has_miner_signature) {
+        const size_t sig_offset = m_job.nonceOffset() + m_job.nonceSize();
+        Cvt::toHex(data + sig_offset * 2, 128, result.minerSignature(), 64);
+    }
+
     using namespace rapidjson;
     Document doc(kObjectType);
 
     Value params(kArrayType);
     if (m_apiVersion == API_DERO) {
-        params.PushBack(m_blocktemplate.toJSON(), doc.GetAllocator());
+        params.PushBack(m_blocktemplateStr.toJSON(), doc.GetAllocator());
         params.PushBack(m_blockhashingblob.toJSON(), doc.GetAllocator());
     }
     else {
-        params.PushBack(m_blocktemplate.toJSON(), doc.GetAllocator());
+        params.PushBack(m_blocktemplateStr.toJSON(), doc.GetAllocator());
     }
 
     JsonRequest::create(doc, m_sequence, "submitblock", params);
@@ -263,9 +269,53 @@ bool xmrig::DaemonClient::parseJob(const rapidjson::Value &params, int *code)
     job.setDiff(Json::getUint64(params, "difficulty"));
     job.setId(blocktemplate.data() + blocktemplate.size() - 32);
 
-    m_job           = std::move(job);
-    m_blocktemplate = std::move(blocktemplate);
-    m_prevHash      = Json::getString(params, "prev_hash");
+    Coin pool_coin = m_pool.coin();
+
+    if ((pool_coin == Coin::INVALID) && (m_pool.algorithm() == Algorithm::RX_WOW)) {
+        pool_coin = Coin::WOWNERO;
+    }
+
+    if (!m_blocktemplate.Init(blocktemplate, pool_coin)) {
+        LOG_ERR("Invalid block template received from daemon");
+        return false;
+    }
+
+    if (m_blocktemplate.has_miner_signature) {
+        if (m_pool.spendSecretKey().isEmpty()) {
+            LOG_ERR("Secret spend key is not set");
+            return false;
+        }
+
+        if (m_pool.spendSecretKey().size() != 64) {
+            LOG_ERR("Secret spend key has invalid length. It must be 64 hex characters.");
+            return false;
+        }
+
+        uint8_t secret_spendkey[32];
+        if (!Cvt::fromHex(secret_spendkey, 32, m_pool.spendSecretKey(), 64)) {
+            LOG_ERR("Secret spend key is not a valid hex data.");
+            return false;
+        }
+
+        uint8_t secret_viewkey[32];
+        derive_view_secret_key(secret_spendkey, secret_viewkey);
+
+        uint8_t derivation[32];
+        if (!generate_key_derivation(m_blocktemplate.raw_blob.data() + m_blocktemplate.tx_pubkey_index, secret_viewkey, derivation)) {
+            LOG_ERR("Failed to generate key derivation for miner signature.");
+            return false;
+        }
+
+        uint8_t eph_secret_key[32];
+        derive_secret_key(derivation, 0, secret_spendkey, eph_secret_key);
+
+        job.setEphemeralKeys(m_blocktemplate.raw_blob.data() + m_blocktemplate.eph_public_key_index, eph_secret_key);
+        job.setTimestamp(m_blocktemplate.timestamp);
+    }
+
+    m_job              = std::move(job);
+    m_blocktemplateStr = std::move(blocktemplate);
+    m_prevHash         = Json::getString(params, "prev_hash");
 
     if (m_apiVersion == API_DERO) {
         // Truncate to 32 bytes to have the same data as in get_info RPC
diff --git a/src/base/net/stratum/DaemonClient.h b/src/base/net/stratum/DaemonClient.h
index ff4f9e04..45a84464 100644
--- a/src/base/net/stratum/DaemonClient.h
+++ b/src/base/net/stratum/DaemonClient.h
@@ -31,6 +31,7 @@
 #include "base/kernel/interfaces/ITimerListener.h"
 #include "base/net/stratum/BaseClient.h"
 #include "base/tools/Object.h"
+#include "base/tools/cryptonote/BlockTemplate.h"
 
 
 #include <memory>
@@ -83,7 +84,7 @@ private:
     } m_apiVersion = API_MONERO;
 
     std::shared_ptr<IHttpListener> m_httpListener;
-    String m_blocktemplate;
+    String m_blocktemplateStr;
     String m_blockhashingblob;
     String m_prevHash;
     String m_tlsFingerprint;
@@ -91,6 +92,8 @@ private:
     Timer *m_timer;
     uint64_t m_blocktemplateRequestHeight = 0;
     String m_blocktemplateRequestHash;
+
+    BlockTemplate m_blocktemplate;
 };
 
 
diff --git a/src/base/net/stratum/Job.cpp b/src/base/net/stratum/Job.cpp
index 134a5064..d429b98e 100644
--- a/src/base/net/stratum/Job.cpp
+++ b/src/base/net/stratum/Job.cpp
@@ -32,6 +32,8 @@
 #include "base/net/stratum/Job.h"
 #include "base/tools/Buffer.h"
 #include "base/tools/Cvt.h"
+#include "base/tools/cryptonote/Signatures.h"
+#include "base/crypto/keccak.h"
 
 
 xmrig::Job::Job(bool nicehash, const Algorithm &algorithm, const String &clientId) :
@@ -169,6 +171,13 @@ void xmrig::Job::copy(const Job &other)
 #   ifdef XMRIG_FEATURE_BENCHMARK
     m_benchSize = other.m_benchSize;
 #   endif
+
+    m_hasMinerSignature = other.m_hasMinerSignature;
+
+    memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey));
+    memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey));
+
+    m_timestamp = other.m_timestamp;
 }
 
 
@@ -204,4 +213,27 @@ void xmrig::Job::move(Job &&other)
 #   ifdef XMRIG_FEATURE_BENCHMARK
     m_benchSize = other.m_benchSize;
 #   endif
+
+    m_hasMinerSignature = other.m_hasMinerSignature;
+
+    memcpy(m_ephPublicKey, other.m_ephPublicKey, sizeof(m_ephPublicKey));
+    memcpy(m_ephSecretKey, other.m_ephSecretKey, sizeof(m_ephSecretKey));
+
+    m_timestamp = other.m_timestamp;
+}
+
+
+void xmrig::Job::generateMinerSignature(uint64_t data, uint8_t* sig) const
+{
+    uint8_t sig_data[16];
+    int k = sizeof(sig_data);
+    do {
+        sig_data[--k] = "0123456789"[data % 10];
+        data /= 10;
+    } while (data);
+
+    uint8_t prefix_hash[32];
+    xmrig::keccak(sig_data + k, sizeof(sig_data) - k, prefix_hash, sizeof(prefix_hash));
+
+    xmrig::generate_signature(prefix_hash, m_ephPublicKey, m_ephSecretKey, sig);
 }
diff --git a/src/base/net/stratum/Job.h b/src/base/net/stratum/Job.h
index 5621cbc7..047e9b15 100644
--- a/src/base/net/stratum/Job.h
+++ b/src/base/net/stratum/Job.h
@@ -116,6 +116,21 @@ public:
     inline void setBenchSize(uint32_t size)             { m_benchSize = size; }
 #   endif
 
+    inline const uint8_t* ephSecretKey() const { return m_hasMinerSignature ? m_ephSecretKey : nullptr; }
+    inline uint64_t timestamp() const { return m_timestamp; }
+
+    inline void setEphemeralKeys(uint8_t* pub_key, uint8_t* sec_key)
+    {
+        m_hasMinerSignature = true;
+        memcpy(m_ephPublicKey, pub_key, sizeof(m_ephSecretKey));
+        memcpy(m_ephSecretKey, sec_key, sizeof(m_ephSecretKey));
+    }
+
+    inline void setTimestamp(uint64_t timestamp) { m_timestamp = timestamp; }
+
+    inline bool hasMinerSignature() const { return m_hasMinerSignature; }
+    void generateMinerSignature(uint64_t data, uint8_t* sig) const;
+
 private:
     void copy(const Job &other);
     void move(Job &&other);
@@ -144,6 +159,11 @@ private:
 #   ifdef XMRIG_FEATURE_BENCHMARK
     uint32_t m_benchSize = 0;
 #   endif
+
+    bool m_hasMinerSignature = false;
+    uint8_t m_ephPublicKey[32]{};
+    uint8_t m_ephSecretKey[32]{};
+    uint64_t m_timestamp = 0;
 };
 
 
diff --git a/src/base/net/stratum/Pool.cpp b/src/base/net/stratum/Pool.cpp
index e39df3b5..86e3205e 100644
--- a/src/base/net/stratum/Pool.cpp
+++ b/src/base/net/stratum/Pool.cpp
@@ -78,6 +78,7 @@ const char *Pool::kSubmitToOrigin         = "submit-to-origin";
 const char *Pool::kTls                    = "tls";
 const char *Pool::kUrl                    = "url";
 const char *Pool::kUser                   = "user";
+const char *Pool::kSpendSecretKey         = "spend-secret-key";
 const char *Pool::kNicehashHost           = "nicehash.com";
 
 
@@ -92,12 +93,13 @@ xmrig::Pool::Pool(const char *url) :
 }
 
 
-xmrig::Pool::Pool(const char *host, uint16_t port, const char *user, const char *password, int keepAlive, bool nicehash, bool tls, Mode mode) :
+xmrig::Pool::Pool(const char *host, uint16_t port, const char *user, const char *password, const char* spendSecretKey, int keepAlive, bool nicehash, bool tls, Mode mode) :
     m_keepAlive(keepAlive),
     m_mode(mode),
     m_flags(1 << FLAG_ENABLED),
     m_password(password),
     m_user(user),
+    m_spendSecretKey(spendSecretKey),
     m_pollInterval(kDefaultPollInterval),
     m_url(host, port, tls)
 {
@@ -115,15 +117,16 @@ xmrig::Pool::Pool(const rapidjson::Value &object) :
         return;
     }
 
-    m_user         = Json::getString(object, kUser);
-    m_password     = Json::getString(object, kPass);
-    m_rigId        = Json::getString(object, kRigId);
-    m_fingerprint  = Json::getString(object, kFingerprint);
-    m_pollInterval = Json::getUint64(object, kDaemonPollInterval, kDefaultPollInterval);
-    m_algorithm    = Json::getString(object, kAlgo);
-    m_coin         = Json::getString(object, kCoin);
-    m_daemon       = Json::getString(object, kSelfSelect);
-    m_proxy        = Json::getValue(object, kSOCKS5);
+    m_user           = Json::getString(object, kUser);
+    m_spendSecretKey = Json::getString(object, kSpendSecretKey);
+    m_password       = Json::getString(object, kPass);
+    m_rigId          = Json::getString(object, kRigId);
+    m_fingerprint    = Json::getString(object, kFingerprint);
+    m_pollInterval   = Json::getUint64(object, kDaemonPollInterval, kDefaultPollInterval);
+    m_algorithm      = Json::getString(object, kAlgo);
+    m_coin           = Json::getString(object, kCoin);
+    m_daemon         = Json::getString(object, kSelfSelect);
+    m_proxy          = Json::getValue(object, kSOCKS5);
 
     m_flags.set(FLAG_ENABLED,  Json::getBool(object, kEnabled, true));
     m_flags.set(FLAG_NICEHASH, Json::getBool(object, kNicehash) || m_url.host().contains(kNicehashHost));
@@ -270,6 +273,10 @@ rapidjson::Value xmrig::Pool::toJSON(rapidjson::Document &doc) const
     obj.AddMember(StringRef(kUrl),   url().toJSON(), allocator);
     obj.AddMember(StringRef(kUser),  m_user.toJSON(), allocator);
 
+    if (!m_spendSecretKey.isEmpty()) {
+        obj.AddMember(StringRef(kSpendSecretKey), m_spendSecretKey.toJSON(), allocator);
+    }
+
     if (m_mode != MODE_DAEMON) {
         obj.AddMember(StringRef(kPass),  m_password.toJSON(), allocator);
         obj.AddMember(StringRef(kRigId), m_rigId.toJSON(), allocator);
diff --git a/src/base/net/stratum/Pool.h b/src/base/net/stratum/Pool.h
index 3f9baecf..c7abbbf3 100644
--- a/src/base/net/stratum/Pool.h
+++ b/src/base/net/stratum/Pool.h
@@ -71,6 +71,7 @@ public:
     static const char *kTls;
     static const char *kUrl;
     static const char *kUser;
+    static const char* kSpendSecretKey;
     static const char *kNicehashHost;
 
     constexpr static int kKeepAliveTimeout         = 60;
@@ -78,7 +79,7 @@ public:
     constexpr static uint64_t kDefaultPollInterval = 1000;
 
     Pool() = default;
-    Pool(const char *host, uint16_t port, const char *user, const char *password, int keepAlive, bool nicehash, bool tls, Mode mode);
+    Pool(const char *host, uint16_t port, const char *user, const char *password, const char* spendSecretKey, int keepAlive, bool nicehash, bool tls, Mode mode);
     Pool(const char *url);
     Pool(const rapidjson::Value &object);
 
@@ -101,6 +102,7 @@ public:
     inline const String &rigId() const                  { return m_rigId; }
     inline const String &url() const                    { return m_url.url(); }
     inline const String &user() const                   { return !m_user.isNull() ? m_user : kDefaultUser; }
+    inline const String &spendSecretKey() const         { return m_spendSecretKey; }
     inline const Url &daemon() const                    { return m_daemon; }
     inline int keepAlive() const                        { return m_keepAlive; }
     inline Mode mode() const                            { return m_mode; }
@@ -149,6 +151,7 @@ private:
     String m_password;
     String m_rigId;
     String m_user;
+    String m_spendSecretKey;
     uint64_t m_pollInterval         = kDefaultPollInterval;
     Url m_daemon;
     Url m_url;
diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp
index 6980eb04..80dd6796 100644
--- a/src/base/tools/cryptonote/BlockTemplate.cpp
+++ b/src/base/tools/cryptonote/BlockTemplate.cpp
@@ -28,7 +28,7 @@
 namespace xmrig {
 
 
-bool CBlockTemplate::Init(const String& blockTemplate)
+bool BlockTemplate::Init(const String& blockTemplate, Coin coin)
 {
     raw_blob = Cvt::fromHex(blockTemplate);
 
@@ -41,6 +41,12 @@ bool CBlockTemplate::Init(const String& blockTemplate)
     ar(prev_id);
     ar(nonce);
 
+    // Wownero block template has miner signature starting from version 19
+    has_miner_signature = (coin == Coin::WOWNERO) && (major_version >= 19);
+    if (has_miner_signature) {
+        ar(miner_signature);
+    }
+
     // Miner transaction begin
     // Prefix begin
     miner_tx_prefix_begin_index = ar.index();
@@ -108,7 +114,7 @@ bool CBlockTemplate::Init(const String& blockTemplate)
     ar(num_hashes);
 
     hashes.resize((num_hashes + 1) * HASH_SIZE);
-    CalculateMinerTxHash(hashes.data());
+    //CalculateMinerTxHash(hashes.data());
 
     for (uint64_t i = 1; i <= num_hashes; ++i) {
         uint8_t h[HASH_SIZE];
@@ -116,14 +122,14 @@ bool CBlockTemplate::Init(const String& blockTemplate)
         memcpy(hashes.data() + i * HASH_SIZE, h, HASH_SIZE);
     }
 
-    CalculateMerkleTreeHash(hashes.data(), num_hashes + 1, root_hash);
-    CalculateHashingBlob();
+    //CalculateMerkleTreeHash(hashes.data(), num_hashes + 1, root_hash);
+    //CalculateHashingBlob();
 
     return true;
 }
 
 
-void CBlockTemplate::CalculateMinerTxHash(uint8_t* hash)
+void BlockTemplate::CalculateMinerTxHash(uint8_t* hash)
 {
     uint8_t hashes[HASH_SIZE * 3];
 
@@ -147,7 +153,7 @@ void CBlockTemplate::CalculateMinerTxHash(uint8_t* hash)
 
 
 
-void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash)
+void BlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count, uint8_t* root_hash)
 {
     if (count == 1) {
         memcpy(root_hash, hashes, HASH_SIZE);
@@ -180,7 +186,7 @@ void CBlockTemplate::CalculateMerkleTreeHash(const uint8_t* hashes, size_t count
 }
 
 
-void CBlockTemplate::CalculateHashingBlob()
+void BlockTemplate::CalculateHashingBlob()
 {
     hashingBlob.clear();
     hashingBlob.reserve(miner_tx_prefix_begin_index + HASH_SIZE + 3);
@@ -194,9 +200,6 @@ void CBlockTemplate::CalculateHashingBlob()
         k >>= 7;
     }
     hashingBlob.emplace_back(static_cast<uint8_t>(k));
-
-    for (int i = 0; i < hashingBlob.size(); ++i)
-        printf("%02x", hashingBlob[i]);
 }
 
 
diff --git a/src/base/tools/cryptonote/BlockTemplate.h b/src/base/tools/cryptonote/BlockTemplate.h
index bf87b5d6..be896b49 100644
--- a/src/base/tools/cryptonote/BlockTemplate.h
+++ b/src/base/tools/cryptonote/BlockTemplate.h
@@ -22,6 +22,7 @@
 #define XMRIG_BLOCKTEMPLATE_H
 
 
+#include "base/crypto/Coin.h"
 #include "base/tools/Buffer.h"
 #include "base/tools/String.h"
 
@@ -29,11 +30,12 @@
 namespace xmrig {
 
 
-struct CBlockTemplate
+struct BlockTemplate
 {
     enum {
         HASH_SIZE = 32,
         KEY_SIZE = 32,
+        SIGNATURE_SIZE = 64,
         NONCE_SIZE = 4,
     };
 
@@ -50,6 +52,9 @@ struct CBlockTemplate
     uint8_t prev_id[HASH_SIZE];
     uint8_t nonce[NONCE_SIZE];
 
+    bool has_miner_signature;
+    uint8_t miner_signature[SIGNATURE_SIZE];
+
     // Miner tx
     uint64_t tx_version;
     uint64_t unlock_time;
@@ -72,7 +77,7 @@ struct CBlockTemplate
 
     Buffer hashingBlob;
 
-    bool Init(const String& blockTemplate);
+    bool Init(const String& blockTemplate, Coin coin);
 
 private:
     void CalculateMinerTxHash(uint8_t* hash);
diff --git a/src/core/config/Config_platform.h b/src/core/config/Config_platform.h
index f92a3158..2867a8b7 100644
--- a/src/core/config/Config_platform.h
+++ b/src/core/config/Config_platform.h
@@ -96,6 +96,7 @@ static const option options[] = {
     { "pause-on-active",       1, nullptr, IConfig::PauseOnActiveKey      },
     { "dns-ipv6",              0, nullptr, IConfig::DnsIPv6Key            },
     { "dns-ttl",               1, nullptr, IConfig::DnsTtlKey             },
+    { "spend-secret-key",      1, nullptr, IConfig::SpendSecretKey        },
 #   ifdef XMRIG_FEATURE_BENCHMARK
     { "stress",                0, nullptr, IConfig::StressKey             },
     { "bench",                 1, nullptr, IConfig::BenchKey              },
diff --git a/src/net/JobResult.h b/src/net/JobResult.h
index 7c818e2c..22fbb311 100644
--- a/src/net/JobResult.h
+++ b/src/net/JobResult.h
@@ -43,7 +43,7 @@ class JobResult
 public:
     JobResult() = delete;
 
-    inline JobResult(const Job &job, uint64_t nonce, const uint8_t *result, const uint8_t* header_hash = nullptr, const uint8_t *mix_hash = nullptr) :
+    inline JobResult(const Job &job, uint64_t nonce, const uint8_t *result, const uint8_t* header_hash = nullptr, const uint8_t *mix_hash = nullptr, const uint8_t* miner_signature = nullptr) :
         algorithm(job.algorithm()),
         clientId(job.clientId()),
         jobId(job.id()),
@@ -61,6 +61,10 @@ public:
         if (mix_hash) {
             memcpy(m_mixHash, mix_hash, sizeof(m_mixHash));
         }
+
+        if (miner_signature) {
+            memcpy(m_minerSignature, miner_signature, sizeof(m_minerSignature));
+        }
     }
 
     inline JobResult(const Job &job) :
@@ -80,6 +84,8 @@ public:
     inline const uint8_t *headerHash() const { return m_headerHash; }
     inline const uint8_t *mixHash() const    { return m_mixHash; }
 
+    inline const uint8_t *minerSignature() const { return m_minerSignature; }
+
     const Algorithm algorithm;
     const String clientId;
     const String jobId;
@@ -92,6 +98,8 @@ private:
     uint8_t m_result[32]     = { 0 };
     uint8_t m_headerHash[32] = { 0 };
     uint8_t m_mixHash[32]    = { 0 };
+
+    uint8_t m_minerSignature[64] = { 0 };
 };
 
 
diff --git a/src/net/JobResults.cpp b/src/net/JobResults.cpp
index 4040cd9a..bcf1abd1 100644
--- a/src/net/JobResults.cpp
+++ b/src/net/JobResults.cpp
@@ -341,6 +341,12 @@ void xmrig::JobResults::submit(const Job &job, uint32_t nonce, const uint8_t *re
 }
 
 
+void xmrig::JobResults::submit(const Job& job, uint32_t nonce, const uint8_t* result, const uint8_t* miner_signature)
+{
+    submit(JobResult(job, nonce, result, nullptr, nullptr, miner_signature));
+}
+
+
 void xmrig::JobResults::submit(const JobResult &result)
 {
     assert(handler != nullptr);
diff --git a/src/net/JobResults.h b/src/net/JobResults.h
index 5ca243d7..33a8a826 100644
--- a/src/net/JobResults.h
+++ b/src/net/JobResults.h
@@ -46,6 +46,7 @@ public:
     static void setListener(IJobResultListener *listener, bool hwAES);
     static void stop();
     static void submit(const Job &job, uint32_t nonce, const uint8_t *result);
+    static void submit(const Job& job, uint32_t nonce, const uint8_t* result, const uint8_t* miner_signature);
     static void submit(const JobResult &result);
 
 #   if defined(XMRIG_FEATURE_OPENCL) || defined(XMRIG_FEATURE_CUDA)
diff --git a/src/net/strategies/DonateStrategy.cpp b/src/net/strategies/DonateStrategy.cpp
index 28a1b1cd..a8ecf851 100644
--- a/src/net/strategies/DonateStrategy.cpp
+++ b/src/net/strategies/DonateStrategy.cpp
@@ -77,9 +77,9 @@ xmrig::DonateStrategy::DonateStrategy(Controller *controller, IStrategyListener
 #   endif
 
 #   ifdef XMRIG_FEATURE_TLS
-    m_pools.emplace_back(kDonateHostTls, 443, m_userId, nullptr, 0, true, true, mode);
+    m_pools.emplace_back(kDonateHostTls, 443, m_userId, nullptr, nullptr, 0, true, true, mode);
 #   endif
-    m_pools.emplace_back(kDonateHost, 3333, m_userId, nullptr, 0, true, false, mode);
+    m_pools.emplace_back(kDonateHost, 3333, m_userId, nullptr, nullptr, 0, true, false, mode);
 
     if (m_pools.size() > 1) {
         m_strategy = new FailoverStrategy(m_pools, 10, 2, this, true);
@@ -259,7 +259,7 @@ xmrig::IClient *xmrig::DonateStrategy::createProxy()
     const IClient *client = strategy->client();
     m_tls                 = client->hasExtension(IClient::EXT_TLS);
 
-    Pool pool(client->pool().proxy().isValid() ? client->pool().host() : client->ip(), client->pool().port(), m_userId, client->pool().password(), 0, true, client->isTLS(), Pool::MODE_POOL);
+    Pool pool(client->pool().proxy().isValid() ? client->pool().host() : client->ip(), client->pool().port(), m_userId, client->pool().password(), nullptr, 0, true, client->isTLS(), Pool::MODE_POOL);
     pool.setAlgo(client->pool().algorithm());
     pool.setProxy(client->pool().proxy());