increase ringsize to 10

src/cryptonote_config.h

@@ -136,6 +136,7 @@
 #define HF_VERSION_DYNAMIC_FEE                  4
 #define HF_VERSION_MIN_MIXIN_4                  6
 #define HF_VERSION_MIN_MIXIN_7                  7
+#define HF_VERSION_MIN_MIXIN_9                  10
 #define HF_VERSION_ENFORCE_RCT                  6
 
 #define PER_KB_FEE_QUANTIZATION_DECIMALS        8

src/cryptonote_core/blockchain.cpp

@@ -2561,7 +2561,7 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
   {
     size_t n_unmixable = 0, n_mixable = 0;
     size_t mixin = std::numeric_limits<size_t>::max();
-    const size_t min_mixin = hf_version >= HF_VERSION_MIN_MIXIN_7 ? 7 : hf_version >= HF_VERSION_MIN_MIXIN_4 ? 4 : 2;
+    const size_t min_mixin = hf_version >= HF_VERSION_MIN_MIXIN_9 ? 9 : hf_version >= HF_VERSION_MIN_MIXIN_7 ? 7 : hf_version >= HF_VERSION_MIN_MIXIN_4 ? 4 : 2;
     for (const auto& txin : tx.vin)
     {
       // non txin_to_key inputs will be rejected below

src/simplewallet/simplewallet.cpp

@@ -85,9 +85,9 @@ typedef cryptonote::simple_wallet sw;
 
 #define EXTENDED_LOGS_FILE "wallet_details.log"
 
-#define DEFAULT_MIX 7
+#define DEFAULT_MIX 9
 
-#define MIN_RING_SIZE 8 // Used to inform user about min ring size -- does not track actual protocol
+#define MIN_RING_SIZE 10 // Used to inform user about min ring size -- does not track actual protocol
 
 #define OUTPUT_EXPORT_FILE_MAGIC "Monero output export\003"
 
@@ -2136,7 +2136,7 @@ simple_wallet::simple_wallet()
                                   "store-tx-info <1|0>\n "
                                   "  Whether to store outgoing tx info (destination address, payment ID, tx secret key) for future reference.\n "
                                   "default-ring-size <n>\n "
-                                  "  Set the default ring size (default and minimum is 5).\n "
+                                  "  Set the default ring size (default and minimum is 10).\n "
                                   "auto-refresh <1|0>\n "
                                   "  Whether to automatically synchronize new blocks from the daemon.\n "
                                   "refresh-type <full|optimize-coinbase|no-coinbase|default>\n "

src/wallet/api/wallet.cpp

@@ -60,7 +60,7 @@ namespace Monero {
 
 namespace {
     // copy-pasted from simplewallet
-    static const size_t DEFAULT_MIXIN = 4;
+    static const size_t DEFAULT_MIXIN = 9;
     static const int    DEFAULT_REFRESH_INTERVAL_MILLIS = 1000 * 10;
     // limit maximum refresh interval as one minute
     static const int    MAX_REFRESH_INTERVAL_MILLIS = 1000 * 60 * 1;

src/wallet/wallet2.cpp

@@ -5265,10 +5265,14 @@ int wallet2::get_fee_algorithm() const
 //------------------------------------------------------------------------------------------------------------------------------
 uint64_t wallet2::adjust_mixin(uint64_t mixin) const
 {
-  if (mixin < 7 && use_fork_rules(7, 10)) {
+  if (mixin < 9 && use_fork_rules(8, 10)) {
+    MWARNING("Requested ring size " << (mixin + 1) << " too low for hard fork 8, using 10");
+    mixin = 9;
+  }
+  else if (mixin < 7 && use_fork_rules(7, 10)) {
     MWARNING("Requested ring size " << (mixin + 1) << " too low for hard fork 7, using 7");
     mixin = 7;
-  }
+  }  
   else if (mixin < 4 && use_fork_rules(6, 10)) {
     MWARNING("Requested ring size " << (mixin + 1) << " too low for hard fork 6, using 5");
     mixin = 4;
@@ -8092,14 +8096,14 @@ const wallet2::transfer_details &wallet2::get_transfer_details(size_t idx) const
 std::vector<size_t> wallet2::select_available_unmixable_outputs(bool trusted_daemon)
 {
   // request all outputs with less than 3 instances
-  const size_t min_mixin = use_fork_rules(7, 10) ? 7 : 2; // v6 increases min mixin from 2 to 4
+  const size_t min_mixin = use_fork_rules(8, 10) ? 9 : 2; // v8 increases min mixin from 7 to 9
   return select_available_outputs_from_histogram(min_mixin + 1, false, true, false, trusted_daemon);
 }
 //----------------------------------------------------------------------------------------------------
 std::vector<size_t> wallet2::select_available_mixable_outputs(bool trusted_daemon)
 {
   // request all outputs with at least 3 instances, so we can use mixin 2 with
-  const size_t min_mixin = use_fork_rules(7, 10) ? 7 : 2; // v6 increases min mixin from 2 to 4
+  const size_t min_mixin = use_fork_rules(8, 10) ? 9 : 2; // v8 increases min mixin from 7 to 9
   return select_available_outputs_from_histogram(min_mixin + 1, true, true, true, trusted_daemon);
 }
 //----------------------------------------------------------------------------------------------------